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HomeMy WebLinkAbout05 - OASIS Senior CenterCITY OF NEWPORT BEACH CITY COUNCIL STAFF REPORT Agenda Item No. ' December 9, 2008 TO: HONORABLE MAYOR AND MEMBERS OF THE CITY COUNCIL FROM: Planning Department Janet Johnson Brown, Associate Planner (949) 644 -3236, 'bi rown Dcity.newport- beach.ca.us SUBJECT: OASIS ( "Older Adult Social and Information Services ") Senior Center 800 and 801 Marguerite Avenue • Determination of Exemption from Zoning & Development Regulations (PA2008 -109) • Mitigated Negative Declaration (ND2008 -002) ISSUE: Should the City Council make a determination to exempt the project from the Newport Beach Municipal Code (NBMC) zoning and development regulations, and adopt the Mitigated Negative Declaration prepared for the proposed new OASIS Senior Center? RECOMMENDATION: Staff recommends a motion, second, and affirmative vote to exempt the project from the zoning and development regulations of the NBMC. Staff also recommends that the City Council adopt a resolution (Exhibit 1) approving the Mitigated Negative Declaration ("MND "), and the Mitigation Monitoring and Reporting Program ( "MMRP ") on the basis of the entire environmental review record. This Page intentionally Left Blank VICINITY MAP 801 Marguerite Avenue r GENER, r,> OASIS Senior Center December 9, 2008 Page 2 800 '! Marguerite Avenue qe]:IC[c� LOCATION GENERAL PLAN ZONING CURRENT USE ON-SITE Public Facilities (PF) Open Space (OS) & OASIS Senior Center & Planned Community PC Passive Park NORTH Single Unit Residential Detached (RS -D) & Attached Single - Family Residential — Residential development RS -A B Overlay (R -1 -B) SOUTH Two Family Residential (RT) Two -Family R Residential Residential development EAST Multiple Residential Planned Community (PC Residential Development 100 DU, RM 33 WEST Parks and Recreation (PR) Open Space Active (OS -A) Grant Howald Park & Community Youth Center This Page Intentionally Left Blank q OASIS Senior Center December 9, 2008 Page 3 INTRODUCTION Protect Setting The 8.656 -acre project site is located at the northeast and northwest comers of Marguerite Avenue and Fifth Avenue in Corona del Mar. The site is developed with the existing OASIS Senior Center, garden plots and a 99 -space parking lot on the northeast comer, and a passive park and a 74 -space parking lot on the northwest comer. The project site is located in a residential area and is surrounded by housing to the north, south, and east. The property adjacent to the passive park on the west is developed with the Grant Howald Park and Community Youth Center. Protect Description The project involves the demolition of the existing senior center that is located on the northeast comer of Marguerite Avenue and Fifth Avenue, and is comprised of six separate buildings totaling approximately 23,000 square feet, 57 garden plots, and the 99 -space parking lot. A new senior center is proposed to be constructed on the same site. The new facility features three single -story buildings totaling approximately 35,200 square feet of enclosed space (42,750 square feet including covered walkways), 56 new garden plots, and a new 153 -space parking lot. The new parking lot will provide 54 additional parking spaces on this site. Vehicular entry to the site will remain from Narcissus Avenue. The existing parking lot on the northwest corner of Marguerite Avenue and Fifth Avenue will continue to provide an additional 74 parking spaces for the senior center. No changes are proposed to this parking lot or the passive park as part of this project. During construction activities, the administrative offices for the OASIS Senior Center and Friends of OASIS will be located in temporary modular structures in the parking lot located on the northwest comer of Marguerite Avenue and Fifth Avenue. The temporary facilities are anticipated to include three trailers placed in a U -shape with a patio /deck area in the center of the trailers, and a parking area with security lighting. These temporary facilities will be removed at the time of occupancy of the new senior center. Construction of the project would occur in one phase and take approximately 18 to 22 months, including demolition activities and re- grading of the site, through to the completion of interior finish work to the new buildings. 6 OASIS Senior Center December 9, 2008 Page 4 DISCUSSION: Exemption from Zoning and Development Reaulations A city or county may exempt itself from the provisions of its own zoning regulations, or it may amend its Zoning Code to include a provision that the regulations shall not apply to capital improvement projects. While the NBMC does not currently include a provision to exempt capital improvement projects such as the new OASIS Senior Center, the proposed Zoning Code Update does include such a provision for capital improvement projects undertaken in compliance with the City Charter. Rather than direct staff to prepare an amendment in advance of the Zoning Code Update, or prepare a use permit to regulate this civic facility, staff is requesting the City Council find that this project is exempt from the zoning and development regulations of the Code. The proposed project has been presented in a public forum on numerous occasions, including focus group meetings and public outreach with homeowners' associations and community organizations. The design of the proposed project is consistent with the directive of the City Council, and the Building Ad Hoc Committee. Most recently, the City Council reviewed the project at the October 28`h Study Session, when the final plans were presented and approved. The OASIS Senior Center is a one -of -a -kind capital improvement project. It is a unique civic facility, and in some cases, there are no specific development regulations or standards in the Code that apply to this type of facility. The Code sections that do not specifically accommodate a civic facility as proposed are indicated below. Parking Standards Chapter 20.66 (Off - Street Parking and Loading Regulations) of the Zoning Code establishes the off - street parking requirements for various uses. In the case of parks and recreation facilities, the Code does not provide a parking standard, but instead states that the parking requirement is as specified by a use permit although the Code does not require a use permit for this type of facility. Rather than process a use permit for the project to establish the required number of parking spaces, staff will control parking at the senior center through the scheduling of classes and events so as to ensure adequate parking is provided. A mitigation measure to this effect has been included in the MMRP, which states: "The City of Newport Beach shall control parking at the new OASIS Senior Center facility through the scheduling of classes and events at the center so as to maximize and balance usage of the parking facilities." If it is found that the parking demand exceeds the supply of parking spaces at any time, staff will adjust the schedule of classes and /or events to correct the situation. OASIS Senior Center December 9, 2008 . Page 5 Temporary Structures Prior to demolition of the existing facility and during construction of the new center, the OASIS Senior Center and Friends of OASIS administrative offices will be relocated to temporary modular structures in the parking lot located on the northwest comer of Marguerite Avenue and Fifth Avenue, which is zoned OS. In addition to the temporary modular structures, a total of 48 parking spaces will be provided on this site. Section 20.60.015 (Temporary Structures and Uses) of the Zoning Code includes a provision that authorizes the Planning Director to approve the temporary use of structures and land in any commercial, industrial, or planned community district for periods of time in excess of 90 days subject to securing a use permit. However, the Zoning Code does not include a provision to allow temporary use of land in OS districts. Although temporary use of land is not allowed in an OS district, staff believes that the interim use of the parking lot will not be detrimental to the health, safety, peace, comfort and general welfare of persons who reside or work in the neighborhood. By allowing the administrative offices to be located in temporary modular structures on the project site, a sense of continuity and stability will be provided for the individuals who use the senior center on a regular basis. It will also allow the Senior Services Manager to be in close communication with the construction project manager while the project is under construction. A copy of the site plan showing the configuration of the temporary modular structures is attached as Exhibit 2. Roof - Mounted Mechanical Equipment The Zoning Code requires the screening of exterior roof - mounted mechanical equipment in all zoning districts. Section 20.60.020 (Accessory Structures and Mechanical Equipment) states the equipment shall not be visible in any direction from any public rights -of -way, public property, or adjacent residential property as may be seen from a point six (6) feet above ground level on such adjacent property, public property or sidewalk on the opposite side of the street. In addition, screening of the top of roof - mounted mechanical equipment may be required by the Planning Director, if necessary to protect views from a residential district. A majority of the roof - mounted mechanical equipment on each of the buildings will be fully screened from view in all directions. The exception lies with the building that houses the main event room and kitchen. The equipment will be screened behind a screen wall and will not be visible from the street or sidewalks, or residential properties located to the south, east, and west of the senior center. However, a portion of the equipment will be partially visible to some residential properties located on Sandcastle Drive to the north of the site. These properties are elevated on a slope that rises approximately 30 feet above the senior center property. The manner in which this equipment could be screened from the residences above would be with a cover over the equipment. However, a cover over the equipment would I OASIS Senior Center December 9, 2008 Page 6 conflict with Building Code requirements due to lack of the necessary height clearance between the equipment and cover, proper ventilation of the equipment, and access to the equipment. Another alternative would be to raise the height of the equipment screen wall. This would result in greater impacts to the building mass, bulk, and height when viewed from the street or sidewalks. In order to reduce the visual impact of the mechanical equipment to the neighboring residential properties on Sandcastle Drive, staff recommends that the equipment be painted to match the color of the screen wall surrounding the equipment and the siding on the building. Renderings depicting sight -line elevations that show the buildings when viewed at a point six feet above grade from the residential properties on Sandcastle Drive are attached as Exhibit 3. Environmental Review A Mitigated Negative Declaration (MND) has been prepared by Hodge & Associates in accordance with the implementing guidelines of the California Environmental Quality Act (CEQA), the State CEQA Guidelines, and City Council Policy K -3. The MND was routed to the City Council in advance of this staff report to allow additional time to review the report. A copy of the MND is attached to this report as Exhibit 4. The MND was made available for public review for a 20-day comment period from October 29 to November 17, 2008. A comment letter was received from the Metropolitan Water District of Southern California (Exhibit 5), which identified that the project would not have an impact. Therefore, no environmental issues were raised during the review period. The MND does not identify any component of the project that would result in a "potentially significant impact' on the environment per CEQA guidelines. However, the document does identify components of the project that would result in effects that are "less than significant with mitigation incorporated" as a result of construction of the project. The document recommends the adoption of 14 mitigation measures to mitigate the effects to a point where clearly no significant effects would occur. These mitigation measures are identified in the MMRP, which is attached as Exhibit 6. Public Notice No public notice is required for this item. However, the item appeared upon the agenda for this meeting, which was posted at City Hall and on the city website. The environmental assessment process has also been noticed in a similar manner and all mandatory notices per the California Environmental Quality Act have been given. Finally, the item appeared upon the agenda for this meeting, which was posted at City Hall and on the city website. O OASIS Senior Center December 9, 2008 Page 7 Prepared by: VA WIs Isa Exhibits: Submitted by: David Lepo Planning Director 1. Draft Resolution 2. Site Plan of Temporary Modular Structures 3. Sight -line Elevations 4. Mitigated Negative Declaration 5. Comment Letter from Metropolitan Water District 6. Mitigation Monitoring and Reporting Program This Page Intentionally Left Blank f"T Exhibit No. 1 Draft Resolution 1L This Page Intentionally Left Blank }3L, RESOLUTION NO. A RESOLUTION OF THE CITY COUNCIL OF THE CITY OF NEWPORT ADOPTING A MITIGATED NEGATIVE DECLARATION FOR THE OASIS SENIOR CENTER LOCATED AT 800 AND 801 MARGUERITE AVENUE (PA2008 -109) WHEREAS, an Initial Study and Mitigated Negative Declaration (MND) have been prepared in compliance with the California Environmental Quality Act (CEQA), the State CEQA Guidelines, and City Council Policy K -3. The Draft MND was circulated for public comment between October 29 and November 17, 2008. Comments were received from the Metropolitan Water District, which identified the project would not have an impact. The contents of the environmental document, including comments on the document have been considered on this project; and WHEREAS, on the basis of the entire environmental review record, the proposed project, with mitigation measures, will have a less than significant impact upon the environment and there are no known substantial adverse affects on human beings that would be caused. Additionally, there are no long -term environmental goals that would be compromised by the project, nor cumulative impacts anticipated in connection with the project. The mitigation measures identified and incorporated in the Mitigation Monitoring and Reporting Program are feasible and will reduce the potential environmental impacts to a less than significant level; and therefore be it RESOLVED, that the City Council of the City of Newport Beach does hereby find, on the basis of the whole record, that there is no substantial evidence that the project, with mitigation measures, will have a significant effect on the environment, and that the Mitigated Negative Declaration reflects the City Council's independent judgment and analysis. The City Council hereby adopted the Mitigated Negative Declaration and Mitigation Monitoring and Reporting Program attached as Exhibit "A." The document and all material, which constitute the record upon which this decision was based, are on file with the Planning Department, City Hall, 3300 Newport Boulevard, Newport Beach, California. PASSED, APPROVED AND ADOPTED THIS 9T" DAY OF DECEMBER, 2008. Mayor ATTEST: City Clerk 13 This Page Intentionally Left Blank H Exhibit No. 2 Site Plan of Temporary Modular Structures �5 This Page Intentionally Left Blank M, 0 This Page Intentionally Left Blank 1� Exhibit No. 3 Sight -line Elevations 1� This Page Intentionally Left Blank / ' VIEW 1 VIEW 3 VIEW2 I w w 1 > >I ¢ ¢I w I � H � � I I llI -¢- -> 4 - - - - -- E <) I I i P IMP". _o 1 CJ p y i ©e L�J 'iL I� 7 (� r F- - -- - -- FIFTH -AVER -E - -- g'' VIEW LOCATION - SITE PLAN I, I This Page Intentionally Left Blank -L This Page Intentionally Left Blank VIEW 2 t- Aw This Page Intentionally Left Blank VIEW 3 This Page Intentionally Left Blank Exhibit No. 4 Mitigated Negative Declaration This Page Intentionally Left Blank OASIS Senior Center 800 and 801 Marguerite Avenue Newport Beach Initial Study & Mitigated Negative Declaration Lead Agency City of Newport Beach Planning Department 3300 Newport Boulevard Newport Beach, California 92658 -8915 Prepared By Hodge & Associates 24040 Camino del Avion, #A247 Monarch Beach, California 92629 October 29, 2008 3� This Page Intentionally Left Blank 3a Contents Foreword............................ ................................ ........................ ............................................... ................... iv Environmental Analysis Checklist Explanations ........ ............................................................................... ... l ProjectDescription .................................................................... ........................................ ............................ l ExhibitRegional Location .............................................................................................................. % Exhibit2 Pn�ecL Vicinity .................................................................................................................. 3 ExhibitProposed Site Plan ............................................................................................................. 4 ExhibitExterior Elevations ............................................................................................................ 5 Background and History of OASIS Senior Center ........................ ........................................ ................ ....... 6 ProposedActions ........ ........................................................ ........................................ ................................ '6 StatutoryAuthority ........ ........................ ................ ........................ .................................... ........................ ... 8 Incorporationhy Reference ........ ........................ ........ ........................ ................ .................................... ....... 8 Exhibit5— Parcel Map ........................................................................................................................ 7 Analysis................................ ............ ................ ........ ........................ ................ ............................ ................ 9 L /\oudedco-----.----------`----------`----------`---------�y %. Agriculture Resources ........................................................................................................................ lO ]. Air Quality ......................................................................................................................................... ll Table ^ Construction Activity Emissions (yoouds/duy) ................................................................ ll Table ' Emissions Burden ................................................................................... l% 4. Biological Resources ......................................................................................................................... l7 I Co8uruDouoorcou-----.----------.----------.----------.----l8 kGeology and Soils .............................................................................................................................. %0 7- Hazards and Hazardous Materials ..................................................................................................... %3 8. Hydrology and Water Quality ............................................................................................................ %5 Table ' Typical Construction B&U, ............................................................................................. %6 9. Land Use and Planning -----`----------.----------.----------.—'%V Table 4— Summary of Applicable General Plan Policies — City of Newport Beach ...................... 0 10. Mineral Resources ....................................................................................................................... ..... 33 lLNoise .................................................................................................................................................. 33 7uh}o5 -Interior and Exterior Noise Standards —City of Newport Beach ..................................... J4 7uhle6 -Noise Standards —City of Newport Beach ----------.------------'J5 Table Measured Noise Levels (dDA) ......................................................................................... 6 Exhibit 6 Noise Monitor Locations ................................................................................................. T7 Exhibit 7' Typical Construction Equipment, Noise Generation Levels ........................................... J9 Table ' Construction Vibration Levels ......................................................................................... 4l 12. Population and Housing ..................................................................................................................... 43 lIPublic Services ................................................................................................................................... 43 14iRecreation .......................................................................................................................................... 45 15. Transportation/Traffic ........................................................................................................................ 45 lkUtilities and Service Systems ............................................................................................................ 47 17. Mandatory Findings of Significance .................................................................................................. 48 Initial Study and Mitigated Negative Declaration Proposed OASIS Senior Center ��� �`� Appendices Appendix A Environmental Checklist Form Source List Appendix B Mitigation Monitoring & Reporting Program Appendix C Air Quality Analysis - Giroux and Associates dated July 14, 2008 Appendix D Noise Impact Analysis - Giroux and Associates dated July 14, 2008 Initial Study and Mitigated Negative Declaration Proposed OASIS Senior Center 3� Foreword Pursuant to the California Public Resources Code §21082.1, the City of Newport Beach has independently reviewed and analyzed the information contained in this Mitigated Negative Declaration. The conclusions and discussions contained herein reflect the independent judgment of the City of Newport Beach as to those issues at the time of publication. Initial Study and Mitigated Negative Declaration Proposed OASIS Senior Center iv 35 City of Newport Beach Environmental Analysis Checklist Explanations Proposed OASIS Senior Center 800 and 801 Marguerite Avenue, Newport Beach Project Description The Project Description of this environmental document provides an understanding of all components of the project. The following describes the project location, surrounding site uses, existing site characteristics as well as project details. The 8.656 -acre project site is located at the northeast and northwest comers of Marguerite Avenue and Fifth Avenue in Corona del Mar within the City of Newport Beach. The site is developed with the existing OASIS (Older Adult Social and Information Services) Senior Center, garden plots, and associated parking area on the northeast comer, and a passive park and parking lot on the northwest comer. The project site is located in a residential area and is surrounded by housing to the north, south, and east. The west side adjacent to the passive park is developed with the Grant Howald Park and Community Youth Center. Exhibit I shows the regional location of the project. Exhibit 2 shows the project vicinity, Exhibit 3 shows the project Site Plan, and Exhibit 4 shows the Exterior Elevations. The project involves demolition of the existing senior center that is comprised of six separate buildings totaling approximately 23,000 square feet, 57 garden plots, and the 99 -space parking lot. A new senior center is proposed to be constructed on the same site. The new facility features three single -story buildings totaling approximately 35,200 square feet of enclosed space (42,750 square feet including covered walkways), 56 new garden plots, and a 153 -space parking lot. Vehicular entry to the site will remain from Narcissus Avenue, with the new driveway aligned with an arbor entry court that opens to the new senior center beyond. The existing parking lot on the northwest comer of Marguerite Avenue and Fifth Avenue will continue to provide an additional 74 parking spaces for the senior center, and no changes are proposed to this parking lot as part of this project. The property on which the senior center is located is relatively flat, with the exception of the northeast portion of the site, which includes an existing slope that is approximately 30 feet high and is located between the parking area and adjacent single- family residential development above. The project will require the installation of a retaining wall up to 11 feet in height at the base of this slope. A new built - up slope is proposed along the Fifth Avenue boundary of the site, which will allow for the new building footprint to be closer to Fifth Avenue, and will allow for an increase in parking spaces on the site. Prior to demolition of the existing senior center, the OASIS Senior Center and Friends of OASIS administrative offices will be relocated to temporary modular structures in the parking lot located on the northwest comer of Marguerite Avenue and Fifth Avenue. The temporary facilities are anticipated to include three trailers placed in a U -shape with a patio /deck area in the center of the trailers, as well as power and security parking area lighting. These temporary facilities will be removed at the time of occupancy of the new senior center. During construction activities, the existing senior center programs are anticipated to be temporarily relocated to other City facilities, including the West Newport Community Center, the Newport Coast Community Center, the Community Youth Center, Bonita Creek Park, the Newport Beach Arts Theatre, and the Saint Michael & All Angels Church. The programs would occur during the unscheduled open hours of these facilities, which are typically morning and early afternoon. Initial Study and Mitigated Negative Declaration Proposed OASIS Senior Center Op 47 Hawaiian Gardens: Anaheim " "' ra k Clevelan Cypress ^ National `�� � '- ` ` - sr V Ila Park Forest SgnatHdl - Stanton Rossmoor - Garden £ 7th St Sterns 39_ Park p rOVe 22 °Orange ,i hentrs Dept Seal Westminster. -Santa zs, Beach Beach Land. Park n�cracde- Ana Perk 1liery t?urk '�- TUStIn 241 San Pedro Bay French Park - ���� Wilde ood Park Ste Fountain Valley Balsa Chica — o� Ecological Reserve Costa Irvine, 0 Huntington 39 Mesa es 133 a Beach 79 Dave 4L s ,bins Mission 1 �Balsa Park.. Lake Forest° yejo Newport ! e Beach Veterans Spyg a _ ° Memorial Pa unaa Hiils Park Park CALIFONNIA I Laguna Beach, 4 Thalia Street Park .San Juan 74 Capistrano° Dana Point Dohenny Stale Beach Interprets 4 Ole Hanson Beach Club I P a c i f i c O c e a n Orr, 2 4 6 8 10 12 14 G u I f o f S a n t a C a i a l i n a Aliso Viejo Initial Study and Mitigated Negative Declaration Proposed OASIS Senior Center Exhibit 1 - Regional Location Yd 511 a� U) C E 0 U `m N a m c 0 0 U W o y N a o o w .o G`es� Oe< O� ;o�orest cO 0 seaf�99 0A P& 0 AEG � m qj -k R �o N ��° E 5 A o 41 m� <P -1b y yacam c .40 t o Goa t �, Z `c �y a^ poi Q rt}� 'tr 0�b v _ b uap�OJ Z ,e �ias� ,e Q A> �e a� p�ig'�41'boe Sea�`F pE G °ast N� a��e�Pma 2a° b °pPJ `y alb �e eac a � �Payel 5� � `aP caP Pie a�y`ae a e co o J Exhibit 2 - Project Vicinity Initial Study and Mitigated Negative Declaration 3 Proposed OASIS Senior Center 34 Exhibit 3 - Proposed Site Plan Initial Study and Mitigated Negative Declaration Proposed OASIS Senior Center v' s fic Ilia__ 9M nonoeooao ®�11 � Iv III IP �t�lrl� terns n1 l ��i��Y� aon Aaoo NO �rrrrrr�rrrrrtir�� - oI. r`r 7 . M Lff uc.ut _ 1 Lm UP i4 � I:. ❑ �q1 .rein I\` =-t 9 LE m"16 en onnnn n.no I' A \ \��! I a F- rw �i�1���i.��i ■ i�� r �I�OUO�Iipprn�uinr��ur 7 ■ ■i HIS Exhibit 3 - Proposed Site Plan Initial Study and Mitigated Negative Declaration Proposed OASIS Senior Center Exhibit 4- Exterior Elevations Initial Study and Mitigated Negative Declaration Proposed OASIS Senior Center IL HJV39 inoam3ri10 ,uu � J1J • V 1�II��Iu'il ' : f A i e m o CI C N « m g• Itl 0 7 p N M m p e O Q m M 0 O w t 5 O 0- F mi m y. • 8 o - gg o - o- 0 c m o — o.. $ Lei o t o o-- m° 8- f o 0 1 0 o p • e S o e t 0 o _ qym po- X e- m I� Exhibit 4- Exterior Elevations Initial Study and Mitigated Negative Declaration Proposed OASIS Senior Center IL The construction of the project would occur in one phase and take approximately 18 to 22 months, including demolition activities and re- grading of the site, through to the completion of interior finish work to the new buildings. Background and History of OASIS Senior Center In 1975, a group of senior residents formed a committee to study the needs of seniors and to make recommendations to the City Council regarding programs and services meeting those needs. The City Council accepted the recommendation, and using federal grants and Older American Act funds, established a senior center at the current location. The existing OASIS Senior Center opened in August 1977 to serve senior citizens with recreational programs and activities. Initially, for the fast year of operations, the senior center shared the facility with Carden Hall School, which was established on the site in the 1960s. Three of the six original classroom buildings are part of the existing senior center today. The multi - purpose room was constructed in 1978, followed by the addition of the arts and crafts building 1989, and the administrative office wing in 1992. The senior center has a non - profit organization, Friends of OASIS, which provides financial and volunteer support to the senior center. The OASIS Senior Center relies on volunteers to help in all aspects of the center. In the early years of the center, most of the programs and services were performed by volunteers with financial support from the Friends of OASIS. As the demand for programs and services expanded, the City's role also expanded Initially, the City staff at OASIS consisted of a full -time clerical person, a full -time maintenance person and a Recreation Supervisor who was responsible for center supervision and administration. Over the years, additional staff was hired to meet the growing need for programs and services. Proposed Actions The project site currently consists of four parcels of land. A single parcel, located at the northwest comer of Marguerite Avenue and Fifth Avenue, is zoned Open Space (OS). The other three parcels are located at the northeast comer of Marguerite Avenue and Fifth Avenue. One of the three parcels is zoned OS, and the other two parcels are zoned Planned Community (PC) and intended for open space use. The General Plan Land Use Element designates all four parcels for Public Facilities (PF) uses, which is intended to provide for facilities such as community centers. The existing and proposed facilities are consistent with the underlying zoning which allows for recreation and open space uses. The City will process a Tentative Parcel Map (Exhibit 5) for the purposes of reconfiguring the existing four parcels of land, creating two parcels and formally dedicating the public streets and rights -of -way of Marguerite Avenue and Fifth Avenue. The proposed actions and subsequent construction of the OASIS Senior Center have been determined to be a "project" as defined in the Guidelines for Implementation of the California Environmental Quality Act (hereinafter "CEQA," Public Resources Code §21000, et seq.). Initial Study and Mitigated Negative Declaration 6 Proposed OASIS Senior Center L�k (P 'Pal a 1 i 1 Cyr, IF aka, st li }� mm 1{ idlIF 060 ' I F I;tfl,tltE E[ Z l �'. ,r:; •i %•' I 111fEI1lEStsl R: �f IF a IF IF s.._ . Exhibit 5 - Parcel Map Initial Study and Mitigated Negative Declaration 7 Proposed OASIS Senior Center 4 Statutory Authority In compliance with state law and procedures, the City has determined that a Mitigated Negative Declaration is the appropriate environmental document for the proposed project. In compliance with §15063 of the CEQA Guidelines, the City conducted an Initial Study to determine if the project may have a significant effect on the environment. The preparation of the Initial Study and Mitigated Negative Declaration is governed by two principal sets of documents; the California Environmental Quality Act, and the CEQA Guidelines (California Code of Regulations §15000, et seq.). Additionally, City of Newport Beach Council Policies and case law provide guidance to this Initial Study and Mitigated Negative Declaration. Section 15063(d)(3) requires that the entries on the Initial Study checklist identifying environmental effects be briefly explained to indicate that there is evidence to support the entries. An Initial Study may rely upon expert opinion supported by facts, technical studies or other substantial evidence to document its findings. Section 15070 identifies that a public agency shall prepare a Negative Declaration or Mitigated Negative Declaration for a project subject to CEQA when the Initial Study shows that the project will not have a significant effect on the environment or the Initial Study identifies potentially significant effects but revisions in the project plans/designs show the effects would be avoided or the effects would be reduced with implementation of mitigation measures to a point where it is clearly shown that no significant impacts to the environment would occur as a result of the project. Incorporation. by Reference Certain documents are incorporated by reference into this Initial Study and Mitigated Negative Declaration pursuant to CEQA Guidelines § 15150. These documents are identified in the Initial Study Checklist (Appendix A) and the location where they can be inspected is also identified. When a document is referenced, its pertinent sections will be briefly summarized in the discussions in this environmental document. Initial Study and Mitigated Negative Declaration Proposed OASIS Senior Center Lkb Analysis The initial step in the City's environmental evaluation is completion of an Environmental Checklist (also known as an "Initial Study ") to identify known or potential environmental impacts, identify environmental areas where impacts can be improved, and eliminate irrelevant issues. The following discussion provides explanations for the conclusions contained in the Environmental Checklist (presented in Appendix A) regarding the proposed project's environmental impacts. Aesthetics Would the project: a) Have a substantial adverse effect on a scenic vista? (Less Than Significant Impact) The project will not have a substantial adverse effect on a scenic vista, since such a vista is not present. Pursuant to the Natural Resources Element of the City of Newport Beach General Plan, the project site is not designated as a public viewpoint. The proposed project involves the construction of a new senior center in the same location of the existing OASIS Senior Center, and the new buildings will not diminish or block views from a public viewpoint. Therefore, the project will not result in a substantial adverse effect on a scenic vista. b) Substantially damage scenic resources, including but not limited to, trees, rock outcroppings, and historic buildings within a state scenic highway? (No Impact) The project site is located at the corner of Marguerite Avenue and Fifth Avenue and is not located on a designated state scenic highway. The project site is landscaped with a variety of ornamental plant species that were planted when the site was developed. The project involves the removal of the existing non - native landscaping and trees, including eucalyptus, sycamore, pine, and palm trees. New landscaping will be planted throughout the site and will include drought tolerant plant species and slow - growing trees. The proposed project will have no impact to any scenic resources such as trees, rock outcroppings, or historic buildings within a state scenic highway. c) Substantially degrade the existing visual character or quality of the site and its surroundings? (No Impact) It is not anticipated that the proposed development and use of the subject site will result in any significant impacts relative to visual character or quality of the site and its surroundings. Residential uses are located to the north, south and east of the project site, and are generally developed with two - story structures designed with stucco finishes combined with wood siding, brick, stone or tile accents. The new senior center will consist of three buildings that are finished with a combination of wood siding, stone tile and plaster, comparable to the facades of residential dwellings in the neighborhood. The two new buildings that are located along the Marguerite Avenue and Fifth Avenue street frontages will be set back 20 feet from the property lines with new landscaping located within the area between the public sidewalk and the buildings. The new buildings will be single -story structures approximately 24 to 26 feet in height and are designed to be in scale and relate with the existing development in the neighborhood. Consistent with the City of Newport Beach General Plan Land Use Element Policies 6.1.2 and 6.1.3, the project has been designed to be architecturally similar in character and compatible with the development pattern of the Corona del Mar neighborhood in which it is located. Initial Study and Mitigated Negative Declaration 9 Proposed OASIS Senior Center k. � d) Create a new source of substantial light or glare which would adversely affect day or nighttime views in the area? (Less Than Significant Impact) Major causes of significant adverse light impacts are glare and light spillover, which occurs when light is unfocused or diffused. Light impacts generally are considered an annoyance, but can also present safety hazards due to glare and light spillover onto public streets and rights -of -way. The project site is located in an area that experiences existing lighting sources from the current senior center, as well as the residential uses (exterior and interior residential lighting), vehicular traffic headlights, and nearby uses such as the community park. Lighting associated with the proposed senior center project (building interior lighting and parking area security lighting) will be visible, though steps will be taken to minimize its impact on surrounding uses. All exterior building- mounted lighting will be below the building eaves. The outdoor garden plots will not include permanent lighting; however, parking areas will include nighttime security lighting. All parking lot lighting will have fixtures that are 22 feet 6 inches in height or lower to avoid light spillover (and horizontal light) from the parking areas into the adjacent neighborhood. Lighting fixtures that are directionally shielded, such as the parking lot lighting, contain visors, louvers, or other types of shields (e.g., cut -off features, light -side shielding) that are designed to direct light onto a targeted area (e.g., the parking lot) and to minimize stray light. All light sources will be designed so that lighting rays will be confined to the site and will eliminate glare and light spillage onto adjacent properties or uses. Therefore, substantial light and/or glare impacts will not occur as a result of the project. 2. Agriculture Resources Would the project: a) Convert Prime Farmland, Unique Farmland, or Farmland of Statewide Importance (Farmland), as shown on the maps prepared pursuant to the Farmland Mapping and Monitoring Program of the California Resources Agency, to non- agricultural use? (No Impact) The project does not involve conversion of any farmland. The proposed project does not call for rezoning of farmland nor is it currently zoned for agriculture. Therefore, the proposed project will not have any impacts on agriculture resources. b) Conflict with existing zoning for agricultural use, or a Williamson Act contract? (No Impact) The project site is not zoned for agricultural use. Therefore, the project would not conflict with existing zoning for agricultural use, or a Williamson Act contract. Therefore, no impacts to this topical area would occur as a result of the proposed project. c) Involve other changes in the existing environment which, due to their location or nature, could result in conversion of Farmland, to non- agricultural use? (No Impact) The project site is not farmland. Therefore, the proposed project will not have any impact on the conversion of farmland to non - agricultural uses. Initial Study and Mitigated Negative Declaration 10 Proposed OASIS Senior Center L�5 Air Quality An Air Quality Assessment for the proposed project was prepared by Giroux and Associates dated July 14, 2008, and is provided in Appendix C of this environmental document and is hereby incorporated by reference. The air quality study analyzed the potential impacts to localized air quality and regional air quality associated with the proposed project as a result of the construction activities and operations of the project. Would the project: a) Conflict with or obstruct implementation of the applicable air quality plan? (Less Than Significant Impact) The long -tern emissions from the operation of the project are below the significance thresholds, and therefore the project will not result in a significant impact. The emissions from the project are consistent with the AQMP assumptions. Also, construction of the project will not produce emissions greater than the SCQAMD thresholds (see Table 1). The project itself would not result in any conflict with or obstruct implementation of an applicable air quality plan (see Table 2). The project does not propose any use that would generate stationary emissions (e.g., factory emissions) or generate increased traffic beyond that anticipated in the build -out of the City's General Plan. b) Violate any air quality standard or contribute to an existing or projected air quality violation? (No Impact) The proposed project will not violate any air quality standard or contribute to an existing or projected air quality violation. The following provides an analysis of construction activity impacts. Construction Activity Impacts There are several sensitive receptors (children, residents, seniors — those with greatest sensitivity to air pollution exposure) within 100 feet from the project construction site perimeter. Exhaust emissions will result from on and off -site heavy equipment. The types and numbers of equipment will vary among contractors such that such emissions cannot be quantified with certainty. Initial demolition and grading will gradually shift toward building construction and then for finish construction, paving, landscaping, etc. The URBENES2007 computer model was used to calculate emissions from the construction equipment. Calculated construction activity emissions for an assumed 12 months of activity are presented in Table 1 as follows: Table 1 - Construction Activity Emissions (pounds /day) Activity I ROG I NOx I CO I S02 PM10 PM2.5 CO2 Demolition and Grading (Includes demolition of 23,000 square feet of existing structures) No Mitigation 1 4.7 1 37.9 21.1 0.0 9.0 34—T-3,6635 With Mitigation 4.7 32.8 1 21.1 1 0.0 3.7 1.1 1 3,603.5 Construction, Paving and Coating No Mitigation 10.7 12.2 8.9 0.0 1.1 1.0 1,258.6 With Mitigation 9.9 10.4 8.9 0.0 0.2 0.2 1,258.6 SMMOThiagold 75 i00 .550 150 1 1,150 55 Source: URBEMIS2007 Model, Output in Appendix Initial Study and Mitigated Negative Declaration 1 1 Proposed OASIS Senior Center q,� Table 1 shows that with or without the use of mitigation, peak daily construction activity emissions will be below CEQA SCAQMD thresholds and will be further reduced by recommended mitigation. The recommended emissions Mitigation Measures 1, 2 and 3 are detailed in Section 3d of this document. Construction equipment exhaust contains carcinogenic compounds within the diesel exhaust particulates. The toxicity of diesel exhaust is evaluated relative to a lifetime exposure of 24 hours per day, 365 days per year for 70 years. Public exposure to heavy equipment emissions, will be an extremely small fraction of the above dosage assumption. Diesel equipment is also becoming progressively `cleaner" in response to air quality rules on new off -road equipment. Any public health risk associated with project - related heavy equipment operations exhaust is therefore not quantifiable, but small. Construction activity air quality impacts occur mainly in close proximity to the surface disturbance area. However, there may be some "spillover" into the surrounding community. That spillover may be physical as vehicles drop or carry out dirt or silt is washed into public streets. Passing non- project vehicles then pulverize the dirt to create off -site dust impacts. Spillover may also occur via congestion effects. Construction may entail roadway encroachment, detours, lane closures and competition between construction vehicles (trucks and contractor employee commuting) and ambient traffic for available roadway capacity. Emissions controls require good housekeeping procedures and a construction traffic management plan that will maintain such spillover effects at a less - than - significant level, which are included in Mitigation Measures 1, 2 and 3. Operational Impacts Potential project - related air quality impacts will derive from the vehicle trip emissions that will be generated from the recreational uses proposed for the project site. The proposed OASIS Senior Center is to be 12,204 square feet larger than the existing facility. It is anticipated that an additional 279 new daily trips will be generated as a result of this expansion, with an associated 2,512 vehicle miles traveled (VMT) per day. Operational emissions for project - related traffic were calculated using a computerized procedure developed by the California Air Resources Board (CARB) for urban growth mobile source emissions. The URBEMIS2007 model was run using the trip generation factors obtained from the ITE Trip Generation 7'h Edition for Recreational Community Centers. The model was used to calculate area source emissions and the resulting vehicular operational emissions for an assumed project build -out year of 2010. The results are shown in Table 2. Table 2 - Project- Related Emissions Burden Year 2010 Emissions (lb Y) ROG NOx CO S02 PM10 PM2.5 CO2 Area Sources 0.4 0.4 1.8 0.0 0.0 0.0 411.2 Mobile Sources 2.0 2.5 24.3 0.0 4.3 0.8 2,542.7 Total 2.4 2.9 26.1 0.0 4.3 0.8 2,953.9 - SCAQMDThresWd ' . 55 .'. 5,50 �.� 150 ': 150. °:_ 55 Percent of Threshold 4 5 5 <1 3 1 NA Exceeds Threshold? No No No No No No NA Initial Study and Mitigated Negative Declaration 12 Proposed OASIS Senior Center �1 The additional trips generated by this project will not cause the SCAQMD's recommended threshold levels to be exceeded. Project - related emission levels for the two ozone precursor pollutants (ROG and NOx) would represent 4% and 5% of the significance threshold, respectively. Carbon monoxide (CO) would similarly not exceed the suggested significance threshold by a large margin of safety. Operational emissions will be at a less - than - significant level. Greenhouse Gas Emissions "Greenhouse gases" (so called because of their role in trapping heat near the surface of the earth) emitted by human activity are implicated in global climate change, commonly referred to as "global warming." These greenhouse gases contribute to an increase in the temperature of the earth's atmosphere by transparency to short wavelength visible sunlight, but near opacity to outgoing terrestrial long wavelength heat radiation. The principal greenhouse gases (GHGs) are carbon dioxide, methane, nitrous oxide, ozone, and water vapor. Fossil fuel consumption in the transportation sector (on -road motor vehicles, off - highway mobile sources, and aircraft) is the single largest source of GHG emissions, accounting for approximately one -half of GHG emissions globally. Industrial and commercial sources are the second largest contributors of GHG emissions with about one - fourth of total emissions. Some greenhouse gases such as carbon dioxide occur naturally and are emitted to the atmosphere through natural processes and human activities. Other greenhouse gases (e.g., fluorinated gases) are created and emitted solely through human activities. The principal greenhouse gases that enter the atmosphere because of human activities are: • Carbon Dioxide (CO2): Carbon dioxide enters the atmosphere through the brining of fossil fuels (oil, natural gas, and coal), solid waste, and trees and wood products, and also as a result of other chemical reactions (e.g., manufacture of cement). Carbon dioxide is also removed from the atmosphere (or "sequestered ") when it is absorbed by plants as part of the biological carbon cycle. • Methane (C144): Methane is emitted during the production and transport of coal, natural gas, and oil. Methane emissions also result from livestock and other agricultural practices and by the decay of organic waste in municipal solid waste landfills. • Nitrous Oxide (NZO): Nitrous oxide is emitted during agricultural and industrial activities, as well as during combustion of fossil fuels and solid waste. • Fluorinated Gases: Hydrofluorocarbons, perfluorocarbons, and sulfur hexafluoride are synthetic, powerful greenhouse gases that are emitted from a variety of industrial processes. Fluorinated gases are sometimes used as substitutes for ozone - depleting substances (i.e., CFCs, HCFCs, and halons). These gases are typically emitted in smaller quantities, but because they are potent greenhouse gases, they are sometimes referred to as High Global Warming Potential gases ( "High GWP gases "). California has passed several bills and the Governor has signed at least three executive orders regarding greenhouse gases. The Governor's Office of Planning and Research is in the process of developing CEQA significance thresholds for GHG emissions but thresholds have yet to be established. GHG statues and executive orders (EO) include Assembly Bill (AB) 32, Senate Bill (SB) 1368, EO S- 03 -05, EO S -20 -06 and EO S- 01 -07. Initial Study and Mitigated Negative Declaration 13 Proposed OASIS Senior Center q AB 32 is one of the most significant pieces of environmental legislation that California has adopted. Among other things, it is designed to maintain California's reputation as a "national and international leader on energy conservation and environmental stewardship." It will have wide - ranging effects on California businesses and lifestyles as well as far reaching effects on other states and countries. A unique aspect of AB 32, beyond its broad and wide - ranging mandatory provisions and dramatic GHG reductions are the short time frames within which it must be implemented. Major components of AB 32 include: • Require the monitoring and reporting of GHG emissions beginning with sources or categories of sources that contribute the most to statewide emissions. • Requires immediate "early action' control programs on the most readily controlled GHG sources. • Mandates that by 2020, California's GHG emissions be reduced to 1990 levels. • Forces an overall reduction of GHG gases in California by 25% to 40 %, from business as usual, over the next 13 years (by 2020). • Must complement efforts to achieve and maintain federal and state ambient air quality standards and to reduce toxic air contaminants. Statewide, the framework for developing the implementing regulations for AB 32 is under way. Additionally, through the California Climate Registry (CCAR), general and industry- specific protocols for assessing and reporting GHG emissions have been developed. GHG sources are categorized into direct sources (i.e., company owned) and indirect sources (i.e., not company owned). Direct sources include combustion emissions from on -and off -road mobile sources, and fugitive emissions. Indirect sources include off -site electricity generation and non - company owned mobile sources. The proposed project would contribute to long -term increases in greenhouse gases (GHGs) as a result of traffic increases (mobile sources) and minor secondary fuel combustion emissions from space heating. Development occurring as a result of the proposed project would also result in secondary operational increases in GHG emissions as a result of electricity generation to meet project - related increases in energy demand. Electricity generation in California is mainly from natural gas -fired power plants. However, since California imports about 20% to 25% of its total electricity (mainly from the northwestern and southwestern states), GHG emissions associated with electricity generation could also occur outside of California. Short-term GHG emissions will also derive from construction activities. During project construction, the URBEMIS2007 computer model predicts that a peak activity day will generate the following CO2 emissions: Demolition 3,603 pounds/day Construction 1,259 pounds/day For purposes of analysis, it was assumed that non -0O2 GHG emissions are negligible, and that the total project construction GHG burden can be characterized by 20 peak demolition/grading days and 100 peak construction days. The estimated annual GHG impact is estimated as follows: Demolition = (3,603 lbs/day x 20 peak days/year) / 2,000 lbs/ ton = 36.0 tons/year Construction = (1,259 lbs/day x 100 peak days/year) /2,000 lbs/ton = 63.0 tons/year In 2004, the statewide annual GHG inventory in CO2-equivalent levels was 492,000,000 metric tons (541,000,000 short tons). The worst -case project construction impact of 63.0 tons/year represents approximately 0.0000 1 % percent of the statewide burden. Initial Study and Mitigated Negative Declaration 14 Proposed OASIS Senior Center 4 New daily operational COZ emissions from project - related traffic and area source emissions are predicted to be 2,954 pounds per day. Annually, this translates into 539 tons per year. This represents slightly more than 0.0001 percent of the most recent statewide inventory. There are no adopted thresholds of GHG emissions significance. However, GHG emissions are implicated in the acceleration of global warming experienced in the last several decades. Climatic impacts are global in scale. Any project - specific contribution to the global issue is miniscule. In the absence of any definitive thresholds of significance, the GHG emphasis on a project - specific level is to incorporate project design features that reduce energy consumption and reduce vehicular travel as much as is reasonably feasible. Unless there is a greater shift to clean energy such as solar, hydro- electric, wind, and nuclear, no substantial reduction in GHG is likely attainable by conventional methods except through energy conservation. Greenhouse Gas Emissions Reduction Measures GHG reduction options on a project -level basis are similar to those measures designed to reduce criteria air pollutants (those with ambient air quality standards). Measures that reduce trip generation or trip lengths, measures that optimize the transportation efficiency of a region, and measures that promote energy conservation within a development will reduce GHG emissions. Additionally, carbon sequestering can be achieved through urban forestry measures. Project - specific features to reduce the global cumulative impact from project implementation include the following: Land Use and Transportation Provide site design elements that will accommodate and promote future utilization of public transit Develop incentives for the use of alternatives to the single occupant vehicle (SOV) for site access OASIS Senior Center provides a regular transportation program Energy Conservation Construct the new center to meet LEED (Leadership in Energy and Environmental Design) Silver Certification • Maximize use of low pressure sodium and/or fluorescent lighting Require acquisition of new appliances and equipment to meet Energy Star certification. All equipment will be new. Urban Forestry Plant trees or vegetation to shade parking lot • Select landscaping that is fast - growing while minimizing water demand to sequester carbon while, reducing electrical loads associated with regional water transportation. Many drought tolerant varieties of plant materials are proposed with new landscaping, with minimal use of lawn. • Participate in green waste collection and recycling program for landscape maintenance. City of Newport Beach General Services provides this service. Initial Study and Mitigated Negative Declaration 15 Proposed OA515 Senior Center 56 LEED Certification The OASIS Senior Center project is designed for a LEED Certification of Silver. One of the perquisites for the certification is Construction Activity Pollution Prevention. In order to receive this credit the contractor must reduce pollution from construction activities by controlling airborne dust generation among other issues. Demolition will be done in phases with the intention of separating recyclable materials from materials that cannot be recycled. The site is large enough to allow for the storage of all construction materials and the construction office to be on -site and secured with fencing from the surrounding neighborhood. The air quality study concluded that the proposed project will not violate any air quality standard or contribute to an existing or projected air quality violation. Therefore, no significant impacts are anticipated as a result of implementation of the proposed project. c) Result in a cumulatively considerable net increase of any criteria pollutant for which the project region is non- attainment under an applicable federal or state ambient air quality standard (including releasing emissions, which exceed quantitative thresholds for ozone precursors)? (No Impact) See response to Section 3.b) (starting on page 11) above. The project is located in the South Coast Air Basin that is a designated non - attainment area. The project does not represent significant growth beyond that already previously evaluated and forecasted for air quality cumulative impacts of basin - wide growth and development. Additionally, the project is consistent with the City's General Plan Policies relative to air quality (NR 6. 1, NR 6.3, NR 7.2, and NR 8.1 presented in Table 4 in the Land Use Section beginning on page 30 of this document). The Air Quality Analysis (Appendix C) prepared for the proposed project concluded that the project will not result in any short-term (construction related) or long -term air quality impacts. Therefore, the project will not result in any significant impacts cumulatively to air quality. d) Expose sensitive receptors to substantial pollutant concentrations? (Less Than Significant Impact With Mitigation Incorporated) There is one public elementary school within one - quarter mile of the site. Harbor View Elementary School is located at 900 Goldenrod Avenue. The project will result in an increase in pollutants from that which currently exists on site as a result of construction activities and after completion of the project due to vehicular trips. However, the Air Quality Analysis concluded that the project will not result in any significant short-term or long -term air quality impacts. All potential pollutant concen- trations are below the Significance Thresholds established by the AQMD. Therefore, it is not anticipated that the project will result in any significant impacts to sensitive receptors. However, due to the close proximity of the Harbor View Elementary School the following mitigation measures are recommended to further reduce short-term impacts associated with grading and construction emissions in compliance with the SCAQMD. Mitigation Measure 1 During construction activities, the City of Newport Beach (and the construction contractor) shall ensure that the following measures are complied with to reduce short-term (construction) air quality impacts associated with the project: a) controlling fugitive dust by regular watering, covering all stock piles with tarps, applying soil stabilizers to inactive areas, preparing a high wind dust control plan and implementing plan elements and terminating soil disturbance when winds exceed 25 mph, stabilizing previously disturbed areas if Initial Study and Mitigated Negative Declaration 16 Proposed OASIS Senior Center 5\ subsequent construction is delayed, and replacing ground cover in disturbed areas as soon as feasible to meet South Coast Air Quality Management District (SCAQMD) Rule 403 (Fugitive Dust); b) maintaining equipment engines in proper tune, limiting allowable idling to S minutes for trucks and heavy equipment, requiring low -NOx tune -ups for off -road equipment, and utilizing diesel particulate filters on heavy equipment where feasible; and c) phasing and scheduling construction activities to minimize project - related emissions. Mitigation Measure 2 During construction activities, the City of Newport Beach (and the construction contractor) shall ensure that the project will comply with SCAQMD Rule 402 (Nuisance), to reduce odors from construction activities. Use low VOC paints, coatings, sealants and adhesives, and high pressure low volume sprayers for architectural coating applications. Mitigation Measure 3 Contractor shall obtain a haul route permit from the City Public Works Department. e) Create objectionable odors affecting a substantial number of people? (No Impact) The proposed project is the redevelopment of a senior center and will not create any objectionable odors. Therefore, the proposed project will not result in any significant impacts of objectionable odors affecting a substantial number of people. 4. Biological Resources Would the project: a) Have a substantial adverse effect, either directly or through habitat modifications, on any species identified as a candidate, sensitive, or special status species in local or regional plans, policies, or regulations or by the California Department of Fish and Game or U.S. Fish and Wildlife Service? (No Impact) The project site is located within an existing developed urbanized area that consists of senior center uses, parking areas, garden plots, and residences. The site contains existing landscaping that was planted when the site was developed as a school and it has been maintained and matured over the years. Landscaping within the project site consists of non - native shrubs and trees. Grant Howald Park borders the project site across Marguerite Avenue to the west. Mature vegetation also occurs adjacent to the project site to the north, on vegetated manufactured slopes supporting residential development. The slope will be partially excavated and existing landscaping will be retained. The project site is not designated as an Environmental Study Area identified by the City of Newport Beach General Plan Natural Resources Element, and the sita does not contain any sensitive habitat or wildlife resources. Therefore, the project will not result in any significant impacts to sensitive plant species. b) Have a substantial adverse effect on any riparian habitat or other sensitive natural community identified in local or regional plans, policies, and regulations or by the California Department of Fish and Game or U.S. Fish and Wildlife Service? (No Impact) The project site does not contain any riparian habitat or sensitive natural communities. A blue line stream is delineated on the United States Geological Survey Map for the area; however, it is located west of the passive park portion of the project site and has been covered by previous park and Initial Study and Mitigated Negative Declaration 17 Proposed OASIS Senior Center 5a` greenbelt development. It will not be affected by the proposed project. Therefore, no impacts to riparian or other sensitive natural communities are anticipated. c) Have a substantial adverse effect on federally protected wetlands as defined by Section 404 of the Clean Water Act (including, but not limited to, marsh, vernal pool, coastal, etc.) through direct removal, filling, hydrological interruption, or other means? (No Impact) The site does not contain wetlands and is currently developed with an existing senior center. Additionally, adjacent properties are also developed with residential uses, a passive park, and parking lot. Therefore, no impacts to wetlands will result from the proposed project. d) Interfere substantially with the movement of any native resident or migratory fish or wildlife species or with established native resident or migratory wildlife corridors, or impede the use of native wildlife nursery sites? (No Impact) See response to item 4.a) above. The site does not contain any sensitive habitat or wildlife resources. The project will not have any impact on fish and/or wildlife species. e) Conflict with any local policies or ordinance protecting biological resources, such as a tree preservation policy or ordinance? (No Impact) See response to item 4.a) above. The project site does not contain any biological resources that are protected under a preservation policy or ordinance. Some ornamental landscaping will be removed and replaced, but it does not involve native plants. Therefore, the project will not conflict with any policies or ordinance pertaining to biological resources. fl Conflict with the provisions of an adopted Habitat Conservation Plan, Natural Community Conservation Plan, or other approved local, regional, or state habitat conservation plan? (No Impact) See response to item 4.a) and 4.e) above. The development of the property does not involve any activities that would impact biological resources that would be subject to a local, regional, or state habitat conservation plan. 5. Cultural Resources Would the project: a) Cause a substantial adverse change in the significance of a historical resource as defined in Section 15064.5? (Less Than Significant Impact) The senior center facility is not listed in the City of Newport Beach General Plan Historic Resources Element as a national, state or locally designated historical resource, and does not appear on any official registry of historical resources. The site is listed on the City's Historic Resources Inventory, which was compiled by the Ad Hoc Historic Preservation Advisory Committee in 1992. Although the inventory was never officially adopted by the City, it still serves as a useful guide to potentially historic properties that may have historic or cultural significance to the City. The City's General Plan Historic Resources Element emphasizes the need to protect the City's heritage and to identify and safeguard historical resources worthy of protection and ensure that new development enhances rather than alters or eliminates reminders of Newport Beach's rich heritage. Initial Study and Mitigated Negative Declaration 18 Proposed OASIS Senior Center 55 The Historic Resources Inventory categorizes the OASIS Senior Center as a Class 4 Historic Classification, and indicates the historical significance of the site is "senior center for the use and benefit of seniors." The classification system in the Historic Resource Inventory defines Class 4 as "Structure of Historic Interest: A building, structure, object, site or natural feature that has been altered to the extent that the historic /architectural integrity has been substantially compromised, but is still worthy of recognition." The site was first occupied by a school, and the school administration buildings and classrooms were constructed in the 1960s. The OASIS Senior Center was established by the City in 1977. Three of the six original classroom buildings are part of the existing senior center today, and new structures were constructed on the site in 1978, 1989 and 1992. While the structures are not considered historically significant, the site is historically significant because it is the site of the first senior center in the City of Newport Beach, and is therefore worthy of recognition. Although the project will not result in a significant impact as defined in § 15064.5 of the CEQA Guidelines, consistent with the Historical Resources Element Policy HR 1.3 (presented in Table 4 in the Land Use Section beginning on page 30 of this document), the proposed project will include measures taken to document the history of the site and center. Photo documentation of the OASIS Senior Center (e.g., structures and property) will be conducted prior to commencement of any site preparation and demolition activities. In addition, at the reopening of the senior center, a commemorative marker or plaque will be placed on site in recognition of the site's significance as the first senior center in Newport Beach. b) Cause a substantial adverse change in the significance of an archeological resource pursuant to Section 15064.5? (Less Than Significant Impact With Mitigation Incorporated) The project site has been previously graded in conjunction with the existing use. No known archeological sites exist at the property. The project will require some site preparation (e.g., grading, excavation). Although it is not anticipated that the project will have any impacts on archeological resources, a mitigation measure is presented to ensure that any potential discoveries during site preparation activities (grading /excavation) are mitigated, consistent with the Historical Resources Element of the General Plan. Mitigation Measure 4 A qualified archeologist shall be retained to observe grading activities and conduct salvage excavation of archeological resources as necessary. The archeologist shall be present at the pre - grading conference, shall establish procedures for archeological resources surveillance, and shall establish, in cooperation with the City, procedures for temporarily halting or redirecting work to permit the sampling, identification and evaluation of the artifacts as appropriate. If additional or unexpected archeological features are discovered, the archeologist shall report such findings to the City Planning Department. If the archeological resources are found to be significant, the archeological observer shall determine appropriate actions, in cooperation with the City, for exploration and/or salvage. These actions, as well as final mitigation and disposition of the resources, shall be subject to the approval of the Planning Director. Initial Study and Mitigated Negative Declaration 19 Proposed OASIS Senior Center 54 c) Directly or indirectly destroy a unique paleontological resource or site or unique geologic feature? (Less Than Significant Impact) It is not anticipated that the project will result in any direct or indirect impacts to unique paleontological resources due to the existing site conditions. Although the project site does not contain any unique geologic features, it is not anticipated that the project will result in any significant impacts. However, a mitigation measure is presented in item 5.b) above to ensure that any potential discoveries during site preparation activities ( grading /excavation) are mitigated. d) Disturb any human remains, including those interred outside formal cemeteries? (Less Than Significant With Mitigation Incorporated) The project is not expected to disturb any human remains, including those interred outside formal cemeteries, since there are no human remains known to exist within or near the property and because the site has been previously graded. No significant impacts to this topical area would occur as result of the development of the project. Mitigation Measure 5 In accordance with the Public Resources Code §5097.94, if human remains are found, the Orange County Coroner must be notified within 24 hours of the discovery. If the Coroner deternvnes that the remains are not recent, the Coroner will notify the Native American Heritage Commission in Sacramento to determine the most likely descendent for the area. The designated Native American representative then determines in consultation with the City the disposition of the human remains. 6. Geology and Soils A Geology Study for the proposed project was prepared by Leighton Consulting, Inc. dated April 18, 2008, and is on file with the City of Newport Beach Planning Department. Additionally, Leighton Consulting, Inc. prepared a letter dated June 3, 2008, that discusses and makes recommendations regarding the retaining wall proposed for the northeastern boundary of the new OASIS Senior Center. The City's General Plan also includes an evaluation of public safety that addresses geology and soils of the City. Would the project: a) Expose people or structures to potential substantial adverse effects, including the risk of loss, injury, or death involving: rupture of a known earthquake fault, as delineated on the most recent Alquist- Priolo Earthquake Fault Zoning Map issued by the State Geologist for the area or based on other substantial evidence of a known fault? (No Impact) The City — as well as most of Southern California — is located in a region of historic seismic activity. The City is not located within a currently designated Alquist -Priolo Earthquake Zone, and no known active faults are mapped on the site. However, there are active or potentially active fault systems that can affect the Newport Beach area. Known regional active faults that could produce significant ground shaking at the site include the Newport- Inglewood (Offshore and Los Angeles Basin segments), Palos Verdes, and Chino - Central Avenue (Elsinore segment) among others. The closest of these is the Newport- Inglewood (Offshore segment) fault, which is located approximately 2.3 miles from the site. The Whittier fault zone, the San Joaquin Hills fault zone, and the Elysian Park fault zone also catty the Initial Study and Mitigated Negative Declaration 20 Proposed OASIS Senior Center 55 potential to cause earthquakes that would cause ground shaking in Newport Beach. The potential for damage resulting from seismic - related events exists within the City as it does throughout Southern California. Seismic hazards include ground shaking, ground failure, ground displacement, tsunamis and seiches. The City's General Plan (Figure S2, City of Newport Beach Seismic Hazards, source: City of Newport Beach and Earth Consultants, 2003) identifies that the site is not located in an earthquake- induced landslide area or area with liquefaction potential. The site is expected to be subject to moderate to severe ground shaking from a regional seismic event within the project life of the proposed building. However, there are no evident faults on the site. ii. Strong seismic ground shaking? (Less Than Significant Impact) The intensity of ground shaking at a given location depends primarily upon the earthquake magnitude, the distance from the source, and the site response characteristics. The Geology Study analyzed this potential for the site and determined a 10 percent probability of exceedance in 50 years, a minor risk. Compliance with applicable standards in the Uniform Building Code for Seismic Zone 4, including those associated with the design and engineering of buildings to minimize the effects of seismic activity and pertinent building standards of the City of Newport Beach would reduce ground shaking hazards to acceptable levels. Therefore, it is not anticipated that the project will result in any significant impacts relative to seismic ground shaking induced in an earthquake. iii. Seismic- related ground failure, including liquefaction? (Less Than Significant Impact) The project site is not identified as being located in a mapped liquefaction hazard zone (California Division of Mines and Geology (CDMG), 1997b), or as an area with liquefaction potential on Figure S2 of the City's General Plan Safety Element. Free groundwater was not encountered in any of the borings explored up to 51.5 feet below the ground surface. Due to primarily clay soils of very stiff to hard consistency overlying bedrocks, the potential for liquefaction is considered low. Therefore, all potential impacts relative to this topic are considered less than significant. iv. Landslides? (No Impact) The site is not located within a zone of potential seismic landslide (CDMG, 1997b); and it is not identified as an area with landslide potential on Figure S2 of the City's General Plan Safety Element. The site is bounded by an ascending engineered fill slope along the northeastern perimeter, which does not pose a potential for seismic landslide. Since no significant natural slopes or pre- existing landslides are located on or near the site, the potential of seismically induced landslides at the site is considered low. b) Result in substantial soil erosion or the loss of topsoil? (Less Than Significant Impact) The site has been previously graded in conjunction with the existing OASIS Senior Center, parking area and garden plots. The site is relatively flat in topography. Therefore, soil erosion or the loss of topsoil is anticipated to be minimal and typical of that associated with construction activities. Initial Study and Mitigated Negative Declaration 21 Proposed OASIS Senior Center 5�0 c) Be located on a geologic unit or soil that is unstable, or that would become unstable as a result of the project and potentially result in on or off- site landslide, lateral spreading, subsidence, liquefaction or collapse? (Less Than Significant Impact With Mitigation Incorporated) The proposed project site is not known to be located on an unstable geologic unit. There is no known incidence of landslide, lateral spreading, subsidence, liquefaction, or collapse on -site or near the site. The site is relatively flat with an average elevation at about 150 feet above mean sea level (msl). A 3:1 (horizontal:vertical) or flatter descending slope borders the northwestern and western perimeters of the site. An ascending slope to the adjacent property along the northeastern boundary is beyond the property limit of this site. Based on the conceptual grading plan (MCE Engineering Land Surveying, 2008), the existing buildings at the site will be demolished and replaced with three one -story buildings. A fill slope that is approximately 10 to 12 feet high, 2:1 (horizontal:vertical) will be constructed along the western perimeter of the site along Fifth Avenue to support the proposed extension of the building footprint. A retaining wall of a maximum height of approximately 11 feet is planned along the northeastern perimeter. While it is not anticipated that significant impacts associated with geology and soils will occur as a result of implementation of the proposed project, a mitigation measure is proposed that would ensure recommendations proposed in the Geology Study are followed. Mitigation Measure 6 During construction activities, the City of Newport Beach (and the construction contractor) shall ensure that the project incorporates recommendations presented in the Geology Report dated April 18, 2008, and the Geotechnical Letter dated June 3, 2008, prepared by Leighton Consulting, Inc. for the retaining wall on the eastern property boundary. d) Be located on expansive soil, as defined in Table 18. 1- B of the Uniform Building Code (1994), creating substantial risks to life or property? (Less Than Significant Impact) Based on the Geology Study, the site has limited potential for expansiveness of soil and can accommodate proposed building foundations. With compliance with the design and building requirement (Uniform Building Code) no significant impacts relative to this topic are anticipated as a result of the implementation of the project. e) Have soils incapable of adequately supporting the use of septic tanks or alternative wastewater disposal systems where sewers are not available for the disposal of wastewater? (No Impact) The proposed project will be served by the local sewer and water system; as such, the project does not involve issues pertaining to soils incapable of supporting septic tanks or alternative wastewater disposal systems. Initial Study and Mitigated Negative Declaration 22 Proposed OASIS Senior Center 5'� 7. Hazards and Hazardous Materials a) Create a significant hazard to the public or the environment through routine transport, use, or disposal of hazardous materials? (Less Than Significant Impact With Mitigation Incorporated) The proposed project will be built within the existing OASIS Senior Center site. The potential exists for asbestos and lead paint to be encountered due to the age of the existing buildings on the site. Prior to demolition of the existing buildings, the City of Newport Beach (and Construction Manager) shall develop a plan for safe storage and disposal of any hazardous materials encountered on the site during demolition of the existing buildings. Leighton Consulting, Inc. will also perform a Phase 1 Environmental Site Assessment (ESA). The following mitigation measures are presented to reduce any potential impacts associated with hazards and hazardous materials to a less than significant level. Mitigation Measure 7 In the event that hazardous materials are discovered during the grading or demolition activities, the City of Newport Beach (and Construction Manager) shall provide evidence that ensures that the identified hazardous waste and/or hazardous materials are handled and disposed of in the manner specified by the State of California Hazardous Substances Control Law (Health and Safety Code Division 20, Chapter 6.5), standards established by the California Department of Health Services and Office of Statewide Planning and Development, and according to the requirements of the California Administrative Code, Title 30. Mitigation Measure 8 Prior to the issuance of any building permits for new construction, the City of Newport Beach (and Construction Manager) shall submit design plans to the City's Planning Department for review and approval to ensure that identified hazardous waste and/or hazardous materials are stored, handled and disposed of in compliance with state and federal guidelines, and as directed by the City's Planning Department. b) Create a significant hazard to the public or the environment through reasonably foreseeable upset and accident conditions involving the release of hazardous materials into the environment? (Less Than Significant Impact) As indicated above, the project itself does not pose a significant hazard to the public or the environ- ment. There is a potential for asbestos to be released during the demolition stage of the proposed construction. However, mitigation measures are presented above to ensure that any potential impact is reduced to a less than significant level. c) Emit hazardous emissions or handle hazardous or acutely hazardous materials, substances, or waste within one- quarter mile of an existing or proposed school? (Less Than Significant Impact With Mitigation Incorporated) See response to item 7.a) above. There is one public elementary school within one - quarter mile of the site. Harbor View Elementary School is located at 900 Goldenrod Avenue, north of the OASIS Senior Center. The demolition of the existing facility may involve hazardous substances and/or hazardous materials. Mitigations measures are presented above to reduce the impact to a less than significant level. Initial Study and Mitigated Negative Declaration 23 Proposed OASIS Senior Center 5� The construction of the project will include short term use of construction equipment that will emit emissions, and the use of construction material, such as low -VOC paint, may include hazardous materials. The operations of the proposed project itself will not emit hazardous emissions or handle hazardous or acutely hazardous materials, substances, or waste. Therefore, no impacts to this topical area will occur as a result of the project. Additionally, in relation to construction activities the proper use and maintenance of equipment, along with the use of general common sense, greatly reduces the potential for contamination. A mitigation measure is presented below that addresses hazardous materials related to short -term construction activities. Mitigation Measure 9 The City of Newport Beach shall ensure that grading and building plans include the following measures and that the measures shall be followed by the construction contractor and crew: 1. The storage of hazardous materials, chemicals, fuels, and oils and fueling of construction equipment shall be a minimum of 45 meters (150 feet) from any drainage, water supply, or other water feature. 2, Hazardous materials stored onsite shall be stored in a neat, orderly manner in the appropriate containers and, if possible, under a roof or other enclosure. 3. Whenever possible, all of a product shall be used up before disposal of its container. 4. If surplus product must be disposed of, methods for disposal recommended by the manufacturer or the City and the state shall be. followed. 5. Spills shall be contained and cleaned up immediately after discovery. Manufacturer's methods for spill cleanup of a material shall be followed as described on the Material Safety Data Sheets (MSDS) for each product. d) Be located on a site which is included on a list of hazardous materials sites compiled pursuant to Government Code Section 65962.5 and, as a result, would it create a significant hazard to the public or the environment? (No Impact) The location of the site is not included on a list of hazardous materials sites compiled pursuant to Government Code §65962.5.1 Therefore, the project will not result in any impacts relative to hazardous materials sites. e) For a project within an airport land use plan or, where such a plan has not been adopted, within two miles of a public airport or public use airport, would the project result in a safety hazard for people residing or working in the project area? (Less Than Significant Impact) The project is not located within two miles of a public airport or within an adopted airport land use plan. Therefore, the project is not anticipated to have any impacts associated with a public airport. 1 htt p: / /geotracker.waterboards.ca.gov Initial Study and Mitigated Negative Declaration Proposed OASIS Senior Center 24 5° f) For a project within the vicinity of a private airstrip, would the project result in a safety hazard for people residing or working in the project area? (No Impact) See response to item 7.e) above. The project does not involve any properties located within the vicinity of a private airstrip. g) Impair implementation of or physically interfere with an adopted emergency response plan or emergency evacuation plan? (No Impact) Newport Beach has an Emergency Operations Plan (EOP) consistent with the State Emergency Management System requirements, outlining the City's response to extraordinary emergency situations associated with natural disasters, technological incidents, and national security emergencies. Proposed projects are thoroughly reviewed by the City to ensure project consistency with the EOP. The project will not result in any impacts to an adopted emergency response plan or emergency evacuation plan. The project will be designed to meet the requirements of the Newport Beach Fire Department for access and safety issues. h) Expose people or structures to a significant risk of loss, injury or death involving wildland fires, including where wildlands are adjacent to urbanized areas or where residences are intermixed with wildlands? (No Impact) The project is located in a developed area and is not adjacent to wildland areas. The project is not located in an area identified as susceptible to wildland fire, per Figure S4 of the Newport Beach General Plan Safety Element. The project would not pose a significant risk involving wildland fires, and therefore would not expose people or structures to the risk of loss, injury, or death involving wildland fires. 8. Hydrology and Water Quality a) Violate any water quality standards or waste discharge requirements? (Less Than Significant With Mitigation Incorporated) Construction Activity Construction activity includes any work associated with grading and construction of the project. This includes clearing the site of existing vegetation, stockpiling, grading, excavation, and building construction. Due to the soil disturbance associated with construction activity, there is a potential for sediment to be transported from the construction site into off -site storm drains or receiving waters such as rivers and streams. Other potential pollutants include nutrients (leaf matter, fertilizers), and hazardous materials as the result of accidental spill (paints, solvents, pesticides), and metals (vehicles and heavy equipment). In accordance with National Pollutant Discharge Elimination System (NPDES) regulations, the State of California requires that any construction activity disturbing one acre or more of soil comply with the General Construction Activities Storm Water Permit (Water Quality Order 99- 08 -DWQ). To obtain authorization for proposed storm water discharges pursuant to this permit, the landowner (discharger) is required to submit a Notice of Intent to the State Water Resources Control Board (SWRCB) and implement best management practices (BMPs) during construction activities. Dischargers are required to implement Best Available Technology Economically Achievable (BAT) and Best Conventional Pollutant Control Technology (BCT) to reduce or eliminate storm water pollution. The purpose of implementing BMPs is to prevent all construction pollutants from contacting Initial Study and Mitigated Negative Declaration 25 Proposed OASIS Senior Center ►I storm water and to keep all erosion products from moving off site into receiving waters. Certain discharges of non -storm water, such as irrigation, and pipe flushing and testing are permitted as long as they do not cause or contribute to a violation of any water quality standard, violate any provision of the General Permit, or require a non -stone water permit (such as that issued by the Santa Ana Regional Water Quality Control Board [SARWQCB]). The proposed project is subject to the General Construction Permit because it will disturb one acre or more of soil during the construction phases. In addition the City will be required to submit and obtain approval of a Water Quality Management Plan as required by the City of Newport Beach. Typical construction BMPs required by the NPDES permit and the pollutants they target are shown in Table 3. As a part of the LEED certification the Civil Engineer will be required to create an Erosion and Sedimentation Control Plan and the Construction General Permit (CGP) outlines the provisions to comply with the NPDES. The Storm Water Pollution Prevention Plan (SWPPP) will be prepared by the Civil Engineer. Table 3 - Typical Construction BMPs Source: California Stonnwater BMP Handbooks (2003). Initial Study and Mitigated Negative Declaration 26 Proposed OASIS Senior Center C E_ N N d Construction BMPs for Incorporation, where applicable, into the SWPPP z a a g Soil and slope stabilization utilizing the appropriate combination of natural and synthetic X X X maltings, geotextiles, mulches, and temporary and permanent seeding. Temporary desifting basins constructed where necessary and consisting of ponds with X X X outflow pipes designed to retain or detain runoff sufficiently to allow sediment to settle. Storm drain inlet protection utilizing an appropriate combination of barrier devices such X X X Trash as sandbags, straw rolls, hay bales, fiber rolls, gravel, silt fencing, screens, and temporary drain signs (raising awareness and limiting construction wastes from entering the storm drain system). Energy dissipation devices installed where necessary and consisting of physical devices X X X such as rock, riprap, and concrete rubble intended to prevent scour of downstream areas. On-site dust control and street sweeping employed when and where necessary, paying X X X Trash close aftention to paved areas and areas susceptible to wind erosion (such as soil stockpiles). Stabilized construction entrance consisting of pads of aggregate and located where X X traffic enters public rights -of -way; when and where necessary, wash racks or fire rinsing may be employed (tire rinse waters being directed through on -site sediment control devices). Diversion structures consisting of devices such as sift fencing, temporary or permanent X X Trash channels, V ditches, earthen dikes, downdrains, straw bales, and sandbag check dams should be utilized where necessary to divert storm water flows from disturbed areas. Adherence to Groundwater Extraction Permit by conducting required testing, X X monitoring, and discharge provisions for activities, including dewatering and foundation dewatering. Construction housekeeping practices consisting of practices such as barricading catch X X X Trash basins and manholes during paving activities; utilizing plastic sheeting, secondary containment, or bermed areas for construction materials when necessary; removing construction debris in a timely fashion: designating and lining concrete washout areas; and berming or locating sanitary facilities away from paved areas. Fertilizer, pesticide, and soil amendment management, including not over applying such X X materials. Source: California Stonnwater BMP Handbooks (2003). Initial Study and Mitigated Negative Declaration 26 Proposed OASIS Senior Center Project Operations Pollutants associated with this type of project include sediment (soil disturbance), nutrients (fertilizers, eroded soils), metals (vehicles), organic compounds (pesticides, solvents, cleaning compounds), trash and debris, oxygen- demanding substances (leaves and lawn clippings), oil and grease (vehicles). The project includes a bio -swale designed to filter storm water runoff and collect it in a central location on the senior center project site. Implementation of recommended mitigation measures that outline requirements to prevent violations of water quality standards and waste discharge requirements will reduce potential impacts to less than significant levels. Mitigation Measure 10 Prior to the commencement of any grading activities, a Water Quality Management Plan (WQMP) will be prepared. The WQMP shall identify Best Management Practices (BMPs) that will be utilized on- site to control pollution runoff. The City shall comply with and implement all the applicable requirements of the NPDES permit. Mitigation Measure 11 Prior to the commencement of grading activities, a Notice of Intent (NOI) will be filed with the State Water Quality Control Board. b) Substantially deplete groundwater supplies or interfere substantially with groundwater recharge such that there would be a net deficit in aquifer volume or a lowering of the local groundwater table level (e.g., the production rate of pre- existing nearby wells would drop to a level which would not support existing land uses or planned uses for which permits have been granted)? (No Impact) The project proposes the demolition of the existing OASIS Senior Center and the construction of the new senior center which will be served by the local sewer and water system. The project will not impact groundwater supplies or interfere with groundwater recharge. It is not anticipated that the project will have any significant impact on groundwater. c) Substantially alter existing drainage pattern of the site or area, including through the alteration of the course of a stream or river, in a manner which would result in substantial erosion or siltation on- or off- site? (Less Than Significant Impact) The project will not result in a significant change to the drainage pattern of property. The proposed project would not involve the alteration of the course of a stream or river in a manner that would result in substantial erosion or siltation on- or off -site. Therefore, it is not anticipated that the project will result in any significant impacts to erosion or siltation on- or off -site. d) Substantially alter the existing drainage pattern of the site or area, including through the alteration of a course of a stream or river, or substantially increase the rate or amount of surface runoff in a manner which would result in Flooding on or off- site? (No Impact) The project does not involve any alteration of the existing and/or planned drainage system (pattern) of the area. The development of the site will not alter the course of a stream or a river. The project does not propose any alterations to the existing or planned storm drain system in Newport Beach. Therefore, no impacts to this topical area will occur as a result of the project. Initial Study and Mitigated Negative Declaration 27 Proposed OASIS Senior Center -1 e) Create or contribute runoff water which would exceed the capacity of existing or planned storm water drainage systems or provide substantial additional sources of polluted runoff? (No Impact) See response to item 8.a) above. The City of Newport Beach is primarily built -out and contains an existing storm water drainage system. The project is consistent with the capacity of the existing storm drain system in the City of Newport Beach. A mitigation measure is presented in Section 8.a) to ensure that any potential impacts associated with runoff (and water quality) during grading and construction of the project will be reduced to a level of less than significant. Therefore, no impacts associated with runoff will occur as a result of the proposed project. f) Otherwise substantially degrade water quality? (Less Than Significant Impact) See response to item 8.a) above. The project will comply with all existing requirements regarding water quality. The project is consistent with the City's General Policies relative to drainage and water quality (NR 1. 1, NR 3.2, NR 3.4, NR 3. 10, and NR 3.11 presented in Table 4 in the Land Use Section beginning on page 30 of this document). Therefore, it is not anticipated that the project will substantially degrade water quality. g) Place housing within a 100- year flood hazard area as mapped on a federal Flood Hazard Boundary or Flood Insurance Rate Map or other flood hazard delineation map? (No Impact) The site is located outside a 100 -year flood plain. Therefore, no impacts relative to the 100 -year flood hazard will occur as a result of the proposed project. h) Place within a 100- year flood hazard area structures which would impede or redirect flood flows? (No Impact) See response to item 8.g) above. The project site is located outside a 100 -year flood plain and, therefore, will not result in any potential impacts associated with a 100 -year flood hazard area. 1) Expose people or structures to a significant risk of loss, injury or death involving flooding, including flooding as a result of the failure of a levee or dam? (No Impact) As noted in the City of Newport Beach Emergency Management Plan (July 15, 2004), the City of Newport Beach is subject to flooding hazards from Prado Dam and the Big Canyon Reservoir. The project site is located approximately three - fourths of a mile southwest of the Big Canyon Reservoir. In the event of failure of the Big Canyon Reservoir structure, floodwaters would rush downstream to the Newport Back Bay some two miles away to the west of the reservoir. The City of Newport Beach Emergency Management Plan identified emergency evacuation procedures in the event of dam or reservoir failure. No mitigation measures are necessary. J) Inundation by seiche, tsunami, or mudflow? (No Impact) The OASIS Senior Center site is not included in the Tsunami Run -Up Area map produced by the City of Newport Beach Fire Department. There may be the potential for some mudflow in the event of a failure of the Big Canyon Reservoir, though the project site is some distance from the reservoir, making it more likely that other debris from residential structures closer to the reservoir would inhibit mudflow. The City of Newport Beach Emergency Management Plan identifies emergency evacuation Initial Study and Mitigated Negative Declaration 28 Proposed OASIS Senior Center 43 procedures in the event of reservoir failure. Impacts associated with inundation by seiche, tsunami, or mudflow would not be associated with the proposed project. 9. Land Use and Planning The City of Newport Beach General Plan was adopted on July 25, 2006, and approved by voters on November 7, 2006. Continuing to provide first class services to seniors was one of the actions articulated to back up the General Plan's Vision Statement endorsed by community leaders and residents. Many of the policies laid out in the General Plan relate to the proposed OASIS Senior Center project. Table 4 lists many of the General Plan Policies in several Elements that relate to the senior center project. Would the project: a) Physically divide an established community? (No Impact) The project site is currently developed with the existing OASIS Senior Center. The project would demolish the existing center and replace it with three buildings, additional parking, and upgraded garden plots. Development of the project will not physically divide an established community; therefore, no impacts relative to this topic are anticipated. b) Conflict with any applicable land use plan, policy, or regulation of an agency with jurisdiction over the project (including, but not limited to the general plan, specific plan, local coastal program, or zoning ordinance) adopted for the purpose of avoiding or mitigating an environmental effect? (No Impact) The General Plan land use designation of the site is Public Facilities. The City's zoning designation of the site is Open Space and Planned Community. The project is consistent with these designations. The new OASIS Senior Center project will provide additional recreational amenities and programs for the adult population that promote health and wellness, development of skills and talents, and learning opportunities. Table 4 provides an evaluation of the City's General Plan Policies that are applicable to the proposed project. The proposed project complies with and meets the objectives of the General Plan by providing a senior center facility that meets the needs of the residents of the City of Newport Beach. The project is consistent with the long -term goals and policies contained in the General Plan which identify the need to continue to provide first -class service to seniors and preserve the diverse qualities of the City of Newport Beach. The project site is not located within the coastal zone. Therefore, no impacts relative to the coastal zone will occur as a result of the proposed project. The proposed project is consistent with the City's General Plan and the proposed use is compatible with surrounding land uses. It is not anticipated that the proposed project will result in significant impacts relative to land use. c) Conflict with any applicable habitat conservation plan or natural community conservation plan? (No Impact) The project is not subject to any applicable habitat conservation plan or natural community conservation plan. The site has been developed with active uses (school and since 1977 the senior center) for more than 50 years. Therefore, no impact would result from the proposed project. Initial Study and Mitigated Negative Declaration 29 Proposed OASIS Senior Center Table 4 - Summary of Applicable General Plan Policies - City of Newport Beach Initial Study and Mitigated Negative Declaration 30 Proposed OASIS Senior Center �0✓ General Plan Applicability To Proposed Project Land Use Element LU 1.1 Maintain and enhance the beneficial and unique The existing public view from residential located behind and character of the different neighborhoods, business elevated above the site will be preserved since the project will districts, and harbor that together identify the City of replace existing single story buildings with new single -story Newport Beach. Locate and design development to buildings. Therefore, no conflict with this policy is expected. reflect Newport Beach's topography, architectural diversity, and view sheds. LU 2.1 Accommodate uses that support the needs of Newport The proposed project provides an updated, new senior center which Beach's residents including housing, retail, services, will increase useable area of the existing senior center by 12,207 employment, and social and spiritual activity that are in square feet. The new center will provide educational classrooms, balance with community natural resources, and open arts and crafts programs, health and fitness activities, social and spaces. assembly functions and administrative offices. Therefore, the project is consistent with this land use policy of the Ctly's General Plan. LU 3.2 Enhance existing neighborhoods, districts, and The project proposes a re-use of the existing senior center site with corridors, allowing for re-use and infill with uses that a new improved and updated senior center that will serve the are complementary in type, form, scale, and character. residents of Newport Beach. The project proposes buildings that are single-story replacing the existing single -story structures. The proposed project will provide a new center that is complementary to the existing site and surrounding area. LU 3.3 Provide opportunities for improved development and The project provides for an improved and updated senior center. enhanced environments for residents. In Corona del The project will also provide additional parking from that which Mar provide enhancement of public improvements and currently is provided for the existing senior center. parking. LU 4.1 Accommodate land use development consistent with The General Plan designation of the site is Public Facilities (PF) and the Land Use Plan. the site is zoned Open Space and Planned Community (Corona del Mar Seniors Project Planned Community): The existing and proposed facility is consistent with the underlying zoning which allows for recreation and open space uses. LU 6.1.1 Accommodate schools, government administrative and The project provides an updated and enhanced senior center to operational facilities, fire stations and police facilities, serve the residents of Newport Beach. The center provides religious facilities, schools, cultural facilities, museums, educational, cultural and social activities which enhance the quality interpretative centers, and hospitals to serve the needs of life for residents. Additionally. the project is proposed to replace of Newport Beach's residents and businesses. the existing center within the same property and the new center is designed to complement the site and immediate area. The serior center provides shuttle service to and from the center and the site is located in an area that is already served by existing utildy infrastructure. LU 6.1.2 Allow for the development of new public and The project provides an updated and enhanced senior center to institutional facilities within the City provided that the serve the residents of Newport Beach. The center provides use and development facilities are compatible with educational, cultural and social activities which enhance the quality adjoining land uses, environmentally suitable, and can of life for residents. Additionally, the project is proposed to replace be supported by transportation and utility infrastructure. the existing center within the same property and the new center is designed to complement the site and immediate area. The senior center provides shuttle service to and from the center and the site is located in an area that is already served by existing utility. Infrastructure. Initial Study and Mitigated Negative Declaration 30 Proposed OASIS Senior Center �0✓ General Plan Applicability To Proposed Project LU 6.1.3 Ensure that the City's public buildings, sites, and It is not anticipated that the proposed development and use of the infrastructure are designed to be compatible in scale, subject site will result in any significant impacts relative to visual mass, character, and architecture with the district or character or quality of the site and its surroundings. Residenfial neighborhood in which they are located, following the uses are located to the north, south and east of the project site, and design and development policies for private uses are generally developed with two-story structures designed with specified by this Plan. Design impacts on adjoining stucco finishes combined with a combinaton of wood siding, brick, uses shall be carefully considered in development, stone or tie accents. The new senior center will consist of three addressing such issues as lighting spillover, noise, buildings that are finished with a combinafion of wood siding, stone hours of operation, parking, local traffic impacts, and tile, and plaster comparable to the facades of residential dwellings in privacy. the neighborhood. Historical Resources HR 1.3 Encourage the placementof historical landmarks, The proposed projectwill include measurestaken todocumenithe photographs, markers, or plaques at areas of historical history of the site and center. Photo documentation of the OASIS interest or value. Senior Center (e.g., structures and property) will be conducted prior to commencement of any site preparation and demolition activities. In addition, at the reopening of the senior center, a commemorative marker or plaque will be placed on site in recognition of the site's significance as the first senior center in Newport Beach. Circulation CE 1.1.1 Provide a diverse transportation system that provides The OASIS Senior Center provides shuttle service to seniors. The mobility options for the community, senior center supports and Implements a shuttle service program to reduce vehicular traffic, CE 4.1.2 Support efforts to increase accessible transit services and faclites for the elderly, disabled, and other transportation disadvantaged persons. Recreation R 4.5 Provide a variety of quality enrichment and recreational The proposed senior center project will provide updated facilities programs for the adult population that promote health and needed space in order to provide a variety of programs to and wellness; development and/or enhancement of Newport Beach residents. The classes provided to residents include skills and talents; extend learning opportunities; educational, health and wellness, arts and crafts, horticulture, and promote sportsmanship; and provide unique many more. opportunities to engage in new activities. R 4.7 Provide quality services and programs which meet social, recreational and health needs for the senior population. Arts and Cultural CA 1.5 Partner with the community to encourage and The OASIS Senior Center provides ads and cultural programs and strengthen arts education for children, youth, adults classes including crafts, painfingldrawing, wood carving, ceramics, and seniors in the City. jewelry malting, dance, filmlliterature, world discovery, and cultural studies. Natural Resources Water Supply NR 1.1 Enforce water conservation measures that limit water The project has been designed to provide improved landscaping, usage, prohibit activities that waste water or cause irrigation and drainage. The existing site was initally developed in runoff, require the use of water - efficient landscaping the 1960s and the proposed project will provide updated site and irrigation in conjunction with new projects. improvements which will In turn result in a more efficient (and conservation use) of water, site runoff and landscaping. NR 32 Promote pollution prevention and elimination methods The project has been designed to comply with applicable water that minimize the introduction of pollutants into natural quality requirements and incorporates storm water filters to treat water bodies, initial drainage. Section 8 of this environmental document discusses the issue of water quality, and with the implementation of water quality mitigation measures, the project will not conflict with the policy to protect and enhance water quality. NR 3.4 Comply with the regulations under the city's municipal The project has been designed to comply with the requirements of separate storm drain system permit under the Natonal tie NPDES. Therefore, the project Is consistent with Policy NR 3.4. Pollutant Discharge Elimination System. Initial Study and Mitigated Negative Declaration Proposed OASIS Senior Center 31 11 1 Initial Study and Mitigated Negative Declaration Proposed OASIS Senior Center 32 11 General Plan Applicability To Proposed Project NR 3.10 Implement Best Management Practices (BMPs) for The project will include implementation of BMPs for shorl4arm residences, businesses, development projects and City (construction related activities) and long -term (operations of the operations. project once built) water quality impacts. The project will provide updated site water quality features that do not currently exist at the property. NR 3.11 Include site design and source controls BMPs as See response to NR 3.2, NR 3.4, and NR 3.10. required by the NPDES. Air Qualify NR 6.1 Provide for walkable neighborhoods to reduce vehicle The proposed senior center project is located in area with existing trips by locating amenities such as services, parks and residential uses. The senior center is in walkable distance for schools in close proximi to residential areas. residents in the immediate vicinity. NR 6.3 Support measures to reduce vehicle -trip generation. The OASIS Senior Center provides a shuttle service for senors. Therefore, the OASIS Senior Center supports vehicle hip reduction. NR 7.2 Implement BMPs to minimize pollution and to reduce The project includes BMPs in addition to compliance with air quality source emissions. measures for dust control and equipment in compliance with the South Coast Air Quality Management District NR 8.1 Manage construction activities to reduce air pollution. See response to NR 72 above. Archaeological and Paleontological Resources NR 18.1 Protect and preserve paleonogical and archaeological No archaeoogical or paleontological resources are known to exist at resources from destruction, and avoid and minimize the project site. However, the Cultural Resources Section of this impacts to such resources. CEQA document (Section 5) provides mitigation to ensure that all potential impacts will be mitigated to a less than significant level in the event the said resources are discovered during Projed construction activities. Visual Resources NR 22.1 Continue to regulate the visual and physical mass of The project will replace existng single story buildings with new one- structures consistent with the unique character and story buildings. The project will provide an updated senior center visual scale of Newport Beach. while maintaining the one -story building heights that are currently experienced at the property. Therefore, no conflict with this policy is expected. Energy Conservation NR 24.2 Promote energy - efficient design features. The development of the project must comply with applicable energy conservation regulations of the California Building Code, which will ensure that no conflict with this policy results. The project is designed for LEED Certification of Silver. Therefore, the project will be implementing Green Building measures including those for energy conversation. Noise N 1.1 Require that all projects are compatible with the noise The proposed senor center will replace the existing senior center environment though the use to the City's adopted with new upgraded buildings and site improvements. The proposed interior and exterior noise standards. project is in compliance with the designated land use of the property and complies with the interior and exterior noise standards of the N.4.1 Enforce interior and exterior noise standards in Table N3 of the Noise Element of the General Plan and in the City of Newport Beach. Therefore, the project is consistent with City's Municipal Code to ensure that sensitive noise Policy N 1.1 and N 4.1. receptors are not exposed to excessive noise levels from stationary noise sources, such as heating ventilation, and air conditioning equipment. V5.1 Limit hours of construction noise to minimize excessive The proposed project includes required mitigation to reduce noise noise. impacts associated with constnrcUon activities in compliance with the Clty of Newport Beach's regulations. Initial Study and Mitigated Negative Declaration Proposed OASIS Senior Center 32 11 10. Mineral Resources a) Result in the loss of availability of a known mineral resource that would be of value to the region and the residents of the state? (No Impact) The project site is not located within a known and/or designated mineral resources area. According to the City of Newport Beach General Plan Natural Resources Element, other than oil and gas resources, there is no active mining within the Newport Beach area. Mineral Resources Zones (MRZ) within the City are either classified as containing no significant mineral deposits (MRZ -1), or the significance of mineral deposits has not been determined (MRZ -3). Therefore, no significant decrease of natural resources is anticipated as a result of the project. b) Result In the loss of availability of a locally important mineral resource recovery site delineated on a local general plan, specific plan, or other land use plan? (No Impact) See response to item 10.a) above. The City's General Plan does not delineate any locally important mineral resource in the project area. Therefore, the proposed project will not result in any significant impacts to a locally important mineral resource. 11. Noise A technical analysis of noise impacts from the project and surrounding uses was undertaken by Giroux and Associates, Inc. The technical report is herein incorporated by reference and is included as Appendix D. The noise report provides a detailed description of the methodology and definition of terms used throughout the study. Standards based on Community Noise Equivalent Level (CNEL) are generally applied to transportation- related sources because local jurisdictions are pre - empted from exercising direct noise control over vehicles on public streets, aircraft, trains, etc. The City of Newport Beach therefore regulates the traffic noise exposure of the receiving property through land use controls. Noise /land use compatibility standards for various classes of land uses are generally expressed in the Noise Element of the General Plan to ensure that noise exposure is considered in any development decisions. The City of Newport Beach has guidelines for noise exposure standards which are shown in Table 5. For uses such as the senior center, the City recommends an exterior noise exposure of 65 dB CNEL and interior noise exposure of 45 dB CNEL. For "stationary" noise sources such as a senior center, the City does have legal authority to establish noise performance standards designed to not adversely impact adjoining residential uses. These standards are typically articulated in the jurisdictional Municipal Code. These standards recognize the varying noise sensitivity of both transmitting and receiving land uses. The property line noise performance standards are normally structured according to land use and time of day. Initial Study and Mitigated Negative Declaration 33 Proposed OASIS Senior Center M0. Table 5 - Interior and Exterior Noise Standards - City of Newport Beach Land Use Category Uses Energy Average CNEL Interior' Exteriorb Residential Single Family, Two-Family, Multiple Family 45e 55d 65 Mobile Home - 65e Commercial, Industrial, Institutional Hotel, Motel, Transient Lodging 45 65r Commercial Retail, Bank Restaurant 55 Office Building, Research and Development, Professional Offices, City Office Building 50 Amphitheatre, Concert Hall Auditorium, Meeting Hall 45 - Gymnasium (Multipurpose) 50 - Sports Club 55 Manufacturing, Warehousing, Wholesale, Utilities 65 Movie Theatres 45 - Institutional Hospital, Schools' Classroom 45 65 Church, Library 45 - Open Space Parks - 65 ' Indoor environment excluding: Bathrooms, toilets, closets, corridors. b Outdoor environment limited to • Private yard of single family . Multi-family private patio or balcony which is served by a means of exit from inside • Mobile home park Hospital patio • Parks picnic area • School's playground • Hotel and motel recreation area =Noise level requirement with closed windows. Mechanical ventilating system or other means of natural ventilation shall be provided as of Chapter 12, Section 1205 of UBC. I Noise level requirement with open windows, if they are used to meet natural ventilation requirement. e Exterior noise level should be such that interior noise level will not exceed 45 CN EL. Except those areas around the airport within the 65 CNEL contour. Initial Study and Mitigated Negative Proposed OASIS Senior Center N City of Newport Beach Noise Standards The Newport Beach Municipal Code (10.26.025 Exterior Noise Standards) limits the noise level generated on a property that may cross to a neighboring residential property. The City's noise ordinance limits are stated in terns of a 30- minute limit with allowable deviations from this 50'" percentile standard. Ordinance limits generally apply to "stationary" sources such as mechanical equipment, or vehicles operating on private property. All stationary equipment at the OASIS Senior Center site must meet the City of Newport Beach Residential Noise Standards at the nearest residential property line, as shown in Table 6 below. The applicable requirement is a function of the time of day with a L50 daytime standard of 55 dB and L50 nighttime of 50 dB. The City's Noise Ordinance (section 10.28.040 Construction Activity -Noise Regulations) exempts noise generated by construction activities from the Noise Ordinance standards if construction is restricted to the hours of 7:00 a.m. and 6:30 p.m. on weekdays and 8:00 a.m. and 6:00 p.m. on Saturdays. Construction is not permitted on any national holiday or on any Sunday. Table 6 - Noise Standards - City of Newport Beach Noise Zone Type of Land Use Allowable Exterior Noise Level (Equivalent Noise Level, Leq) 7 a.m. to 10 p.m. Allowable Exterior Noise Level (Equivalent Noise Level, Leq) 10 p.m. to 7 a.m. I Single-, two-or multiple-family residential 55 dBA 50 dBA II Commercial 65 dBA 60 dBA III Residential portions of mixed -use properties 60 dBA 50 dBA iv Industrial or manufacturing 70 dBA 70 dBA Notes: • In the event the ambient noise level exceeds the noise standard, the maximum allowable noise level under said category shall be increased to reflect the maximum ambient noise level. • The Noise Zone III standard shall apply to that portion of residential property falling within 100 feet of a commercial property, if the intruding noise originates from that commercial property. • If the measurement location is on boundary between two different noise zones, the lower noise level standard applicable to the noise zone shall apply. (Ord. 95.53 § 1, 1995; Ord. 9536 § it (part), 1995) The Newport Beach Noise Ordinance also provides limitations on the installation of new HVAC equipment as follows: New permits for heating, venting and air conditioning (HVAC) equipment in or adjacent to residential areas shall be issued only where installations can be shown by computation, based on the sound rating of the proposed equipment, not to exceed an A- weighted sound pressure level of 50 dBA or not to exceed an A- weighted sound pressure level of 55 dBA and be installed with a timing device that will deactivate the equipment during the hours of 10:00 p.m. to 7:00 a.m. Initial Study and Mitigated Negative Declaration Proposed OASIS Senior Center 35 10 Baseline Noise Levels Short-term on -site noise measurements were made to document existing baseline levels in the project area. These help to serve as a basis for projecting future noise exposure, both from projects upon the surrounding community and from the ambient noise acting upon the proposed project. Noise monitoring was conducted on Friday, June 27, 2008, from 1:15 p.m. to 2:15 p.m., at five on -site locations. Measurement locations are shown in Exhibit 6 and summarized in Table 7. Table 7 - Measured Noise Levels (dBA) Site No. Leg Lmax Lmin L10 L33 L50 L90 1 48.4 60.0 37.5 51.5 45.5 44.0 40.0 2 54.9 67.5 44.5 57.5 54.5 52.5 48.0 3 55.3 73.0 44.0 57.0 54.5 53.0 48.5 4 57.4 64.0 47.5 60.5 58.0 56.0 50.5 5 52.0 63.0 42.0 54.5 57.0 49.5 46.5 Monitoring experience shows that 24 -hour weighted CNEL's can be reasonably well estimated from mid - afternoon noise readings. CNELs are approximately equal to mid - aftemoon Leq plus 3 dB (Caltrans Technical Noise Supplement, 1998). Existing on -site noise levels in the upper 40 to mid - upper 50 dB CNEL range would equate to CNELs of 50 dB to 60 dB. Such levels are well within Newport Beach residential and classroom noise standards of 65 dB CNEL. There are no ambient noise constraints to project development as proposed. The existing hours of senior center operation are Monday -Friday 8:00 a.m. to 5:00 p.m. and limited hours of 10:30 a.m. to 4:00 p.m. on Sundays. New proposed hours of operation are anticipated to be expanded to 8:00 a.m. to 9:00 p.m. Monday through Thursday, 8:00 a.m. to 5:00 p.m. on Fridays and 10:00 a.m. to 4:00 p.m. on Saturday and Sunday. In addition to the senior programs the center is used by the Recreation Services Division for night classes which most likely will continue. The center is also rented to the public for weddings, parties, homeowners and AA meetings and other special events. The center is available to rent for large events on Friday and Saturday evenings only and for the smaller meetings and events on weekday evenings. Initial Study and Mitigated Negative Declaration Proposed OASIS Senior Center 36 11 Exhibit 6 - Noise Monitor Locations Initial Study and Mitigated Negative Declaration 37 Proposed OASIS Senior Center Would the project result in: a) Exposure of persons to or generation of noise levels in excess of standards established in the local general plan or noise ordinance, or applicable standards of other agencies? (Less Than Significant With Mitigation Incorporated ) Potential Noise Impacts Two characteristic noise sources are typically identified with general development such as the OASIS Senior Center. Construction activities, especially heavy equipment, will create short -term noise increases near the project sites. Upon completion, vehicular traffic on streets around the proposed project area may create a higher noise exposure. In already - developed areas, the added land use intensity associated with a single development only increases traffic incrementally on existing roadways. These noise impacts are often masked by the baseline, and likely preclude perception of any substantial noise level increase. The incremental noise impact from an anticipated increase of 279 vehicles per day will be imperceptible within existing traffic noise background. The proposed project is consistent with the City's General Plan Policy relative to requiring projects to be compatible with the noise environment through the use of the City's adopted interior and exterior noise standards (N 1.1 presented in Table 4 in the Land Use Section beginning on page 30 of this document). Project activities will entail outdoor activities. Outdoor recreational activities at a senior center are generally very low key. They also represent a continuation of existing activities. No impact analysis was therefore conducted for outdoor recreation. The only operational noise sources that would be of concern would be the HVAC equipment, parking lot activity noise and event noise. The HVAC equipment associated with the proposed project will comply with the City's adopted exterior noise standards (Policy N 4.1 is presented in Table 4. page 30). Construction Noise Impacts Temporary construction noise impacts will vary markedly because the noise strength of construction equipment ranges widely as a function of the equipment used and its activity level. Short -term construction noise impacts tend to occur in discrete phases dominated initially by demolition of existing structures and large earth - moving sources, then by foundation and parking lot construction, and finally for finish construction. The demolition and earth- moving sources are the noisiest, with equipment noise typically ranging from 75 to 90 dBA at 50 feet from the source. Exhibit 7 shows the range of noise emissions for various pieces of construction equipment. Point sources of noise emissions are attenuated by a factor of 6 dB per doubling of distance through geometrical (spherical) spreading of sound waves. The quieter noise sources will drop to a 65 dBA exterior /45 dBA interior noise level by about 200 feet from the source while the loudest may require over 1,000 feet from the source to reduce the 90+ dBA source strength to a generally acceptable 65 dBA exterior exposure level. This estimate assumes a clear line -of -sight from the source to the receiver. Variations in terrain elevation will act as a noise barrier that may interrupt equipment noise propagation. Construction noise impacts are, therefore, somewhat less than that predicted under idealized input conditions Initial Study and Mitigated Negative Declaration Proposed OASIS Senior Center In 13 Noise Level (dBA) at 50 Feet Compactors (Rollers) on MA 4A Front Loaders Backhoes w Tractors o w Scrapers, Graders o Pavers U E Trucks m c a Concrete Mixers Concrete Pumps 3 m Cranes (Movable) E 3 Cranes (Derrick) Q LU Pumps z m 4 Generators Compressors Pneumatic Wrenches d Jack Hammers and Rock Drills — Q "' Pile Drivers (Peaks) Vibrator L_ Saws Source: EPA PB 206717, Environmental Protection Agency, December 31, 1971, 'Noise from Construction Equipment and Operations! Exhibit 7 - Typical Construction Equipment, Noise Generation Levels Initial Study and Mitigated Negative Declaration Proposed OASIS Senior Center 1 The City of Newport Beach Municipal Code identifies that the permissible hours of construction are 7:00 a.m. and 6:30 p.m. on weekdays and 8:00 a.m. and 6:00 p.m. on Saturdays. Construction is not permitted on any national holiday or on any Sunday. These hours are included as conditions on any project construction permits and these limits will serve to minimize any adverse construction noise impact potential. The project is consistent with the City's General Plan Policy relative to limiting excessive construction noise (N 5.1 presented in Table 4 in the Land Use Section beginning on page 30 of this document). The proposed project will result in temporary noise during construction activities. Construction activities associated with the development of the site (including grading) will be limited to daytime hours as required by the City's noise regulations. Also, the project will be required to comply with City's standards regarding construction equipment operations to reduce noise levels. On- Site Noise Generation The following is a summary of the potential on -site noise that would be associated with the proposed senior center project: HVAC - Roof -top mechanical equipment noise was presumed to be typical of comparable HVAC sources. Commercial air conditioners ( "package units ") are typically rated at around 50 dB at 50 feet from the equipment, when running at full power. The equipment cycle frequently depends upon ambient temperature. The equipment cycles more often during warm days than cool evenings. With less cycling, the noise ordinance standards would more likely be affected. The roof edge and screening or parapet provides a natural noise barrier that reduces noise levels from rooftop HVAC units by 8 dB or more. Any roof- top mechanical equipment would be required to meet an A- weighted sound pressure level of fifty (50) dBA or not exceed an A- weighted sound pressure level of fifty -five (55) dBA and be installed with a timing device that will deactivate the equipment during the hours of ten p.m. to seven a.m. With the exception of special events, the center will be closed at 9:00 P.M. Parking Lot Activity - The main parking area is located on the eastern side of the property and the primary vehicular entry is from Narcissus Avenue. Parking is currently provided for 99 cars. There is an overflow parking lot shared with Grant Howald Park located to the west of the center across Marguerite Avenue. Parking lot activities for the entire senior center facility (35,207 square feet) are forecast to generate 57 AM peak hour trips and 58 PM peak hour trips. Center users can park either at the facility or across Marguerite Avenue, such that parking lot noise will be spread over several areas. Parking lot activities will be audible from time to time but are generally not perceived as being loud. Maximum peak hour traffic noise impact level of 46 dB Leq at 50 feet assumes that all vehicles utilize a single access point. While this assumption represents a maximum, it is nevertheless less than the 55 dB L50 City of Newport Beach residential noise standard. With farther distance to adjacent sensitive receivers, their noise exposure will be within City standards by an even larger margin of safety. Center Activitv Noise Generation - The senior center planned for this parcel is not anticipated to generate noise that will affect off -site uses. Classes and activities are primarily indoors. Passive outdoor recreational uses will be sited in the interior of the Initial Study and Mitigated Negative Declaration 40 Proposed OASIS Senior Center -15 complex allowing the buildings to shield users from street traffic. Such a location will also allow the buildings to shield adjacent sensitive uses from possible recreational noise. Additionally, a covered loading and service area for the Meals on Wheels program has been provided adjacent to the kitchen service area. The recycling center and trash enclosure are hidden from view from the adjacent streets. The Center is currently utilized for special events and this will continue with no anticipated increase in the number of events. Mitigation Measure 12 During constructions activities (including site preparation, etc.) the project will comply with the applicable requirements of the City's Noise Ordinance. b) Exposure of persons to or generation of excessive groundborne vibration or groundborne noise levels? (Less Than Significant Impact) Construction activities generate ground -bome vibration when heavy equipment travels over unpaved surfaces or when it is engaged in soil movement. The effects of ground -borne vibration include discernable movement of building floors, rattling of windows, shaking of items on shelves or hanging on walls, and rumbling sounds. Within the "soft" sedimentary surfaces of much of Southern California, ground vibration is quickly damped out. Because vibration is typically not an issue, very few jurisdictions have adopted vibration significance thresholds. Vibration thresholds have been adopted for major public works construction projects, but these relate mostly to structural protection (cracking foundations or stucco) rather than to human annoyance. Vibration is most commonly expressed in terms of the root mean square (RMS) velocity of a vibrating object. RMS velocities are expressed in units of vibration decibels. The range of vibration decibels (VdB) is as follows: 65 VdB - threshold of human perception 72 VdB - annoyance due to frequent events 80 VdB - annoyance due to infrequent events 100 VdB - minor cosmetic damage To determine potential impacts of the project's construction activities, estimates of vibration levels induced by the construction equipment at various distances are presented in Table 8 below: Table 8 - Construction Vibration Levels Equipment Approximate Vibration Levels (VdB)' 25 feet 50 feet 100 feet 1000 feet Large Bulldozer 87 81 75 55 Loaded Truck 86 80 74 54 Jackhammer 79 73 67 47 Small Bulldozer 58 52 46 26 Pile Driver 93 B7 81 61 (FTA Transit Noise & Vibration Assessment, Chapter 12, Construction, 1995) Initial Study and Mitigated Negative Declaration Proposed OASIS Senior Center 41 -1 (D The on -site construction equipment that will create the maximum potential vibration is a large bulldozer. The stated vibration source level in the FTA Handbook for such equipment is 87 VdB at 25 feet from the source. The closest residences to the project site are across Fifth Avenue and are approximately 80 feet from the closest building fagade. Behind the facility, along Sandcastle Drive, residences are located approximately 150 feet from the fnade of the existing facility. Homes along Narcissus Avenue are more than 190 feet from any building fnade. Groundbome vibration attenuates quickly with distance. Vibration levels from heavy equipment would be well below the 80 VdB annoyance threshold for infrequent/temporary events at the nearest off -site homes. Vibration levels will not exceed either the potential nuisance threshold or the building damage threshold. Construction activity vibration impacts are judged as less- than - significant. The project requires moderate grading and site preparation in addition to building construction but does not exceed the City of Newport Beach standards for vibration annoyance thresholds. Therefore, nearby residential uses may experience some minor ground home vibration or groundborne noise levels during daytime hours of construction; however, with implementation of mitigation measure presented in Section l La) above, potential impacts can be reduced to acceptable levels. c) A substantial permanent increase in ambient noise levels in the project vicinity above levels existing without the project? (Less Than Significant Impact) The project itself will not result in any substantial permanent increase in ambient noise levels above levels existing without the project. Activities at the senior center are typically low key and would not generate significant noise in the surrounding neighborhood beyond that which is currently experienced. Also, the project increase in vehicular traffic is expected to be masked by the current traffic in the area. Therefore, there is less than significant impact. d) A substantial temporary or periodic increase in ambient noise levels in the project vicinity above levels existing without the project? (Less Than Significant Impact) Since the project will involve construction activities on the site, there will be short-term increases in ambient noise levels above levels existing without the project. However, these temporary noise impacts will be reduced to a less than significant level by limiting the hours of construction in accordance with City's Noise Ordinance. e) For a project located within an airport land use plan or, where such a plan has not been adopted, within two miles of a public airport or public use airport, would the project expose people residing or working in the project area to excessive noise levels? (No Impact) The project does not propose development located within an airport land use plan or near a public airport. Therefore, no impacts to this topical area will occur as a result of the project. f) For a project within the vicinity of a private airstrip, would the project expose people residing or working in the project area to excessive noise levels? (No Impact) The project is not located within the vicinity of a private airstrip nor would the project expose people to excessive noise levels. Therefore, there are no project impacts associated with a private airstrip. Initial Study and Mitigated Negative Declaration 42 Proposed OASIS Senior Center -11 12. Population and Housing a) Induce substantial population growth in an area, either directly (for example, by proposing new homes and businesses) or indirectly (for example, through extension of roads or other infrastructure)? (No Impact) The project consists of the demolition of the existing OASIS Senior Center and the re- building and expansion of the facility. The project is proposed in response to current and projected community needs relative to public meeting space and programs. The project will provide opportunities for a range of programs and functions to serve the needs of the senior citizens population and the community. Therefore, the project is consistent with the goals and polices of the City's General Plan. The property is located in an area with existing infrastructure that will serve the site. No new or unanticipated significant infrastructure will be required for the project. The project will not induce substantial population growth in the area, either directly or indirectly beyond that already contemplated per the City's General Plan, county and state population/housing projections. b) Displace substantial numbers of existing housing, necessitating the construction of replacement housing elsewhere? (No Impact) The project does not involve elimination of any existing housing. The project site is developed as an existing senior center and the proposed project involves demolition of the existing OASIS Senior Center and re- building and expansion of the facility. Therefore, the project will not displace any existing housing. c) Displace substantial numbers of people, necessitating the construction of replacement housing elsewhere? (No Impact) See response to 12.b) above. The subject property is developed as the OASIS Senior Center. The project will not result in the displacement of substantial numbers of people and/or housing. The project will not displace people, necessitating the construction of replacement housing. 13. Public Services a) Would the project result in substantial adverse physical impacts associated with the provision of new or physically altered government facilities, need for new or physically altered government facilities, the construction of which could cause significant environmental impacts, in order to maintain acceptable service ratios, response times or other performance objectives for any of the public services: (Less Than Significant Impact) Due to the type of project (demolition of existing senior center and rebuilding the facility, it is not anticipated that the project will have any significant impact on public services and/or facilities. Fire protection? (Less Than Significant Impact) The Newport Beach Fire Department provides fire protection and emergency response services for the City and the OASIS Senior Center. Response times to the site are dependent on various factors. Response time is generally five minutes or less. Emergency calls receive the quickest response times with alarm calls and non - emergency calls having longer response times respectively. The availability of personnel and extenuating circumstances may further affect response times. The closest Newport Initial Study and Mitigated Negative Declaration Proposed OASIS Senior Center 43 4 Beach fire station to the site is located on Marigold Avenue just north of East Coast Highway, four blocks from the senior center. There are eight fire stations that exist within the City, although stations located outside of the City will also respond to areas within the City. The project will be required to comply with requirements of the Fire Department. Therefore, it is not anticipated that the proposed project will result in any significant impacts relative to fire protection services and/or facilities. ii. Police protection? (Less Than Significant Impact) Law enforcement services are provided by the Newport Beach Police Department. The City of Newport Beach Police Department will continue to provide law enforcement services to the site once construction is complete. The City's police facility is located at 870 Santa Barbara Drive in the Newport Center Area. The police facility is approximately two miles from the project site. Response times to the site are dependent on various factors including the location of patrol vehicles at the given moment. Emergency calls receive the quickest response times with alarm calls and non - emergency calls having longer response times respectively. The availability of personnel and extenuating circumstances may further affect response times. Response times citywide are just under four minutes for emergency calls and seven minutes for non - emergency calls. The Newport Beach Police Department has a staffing ratio of 1.87 sworn officers per 1,000 population. This is based on a year - round population of 84,554 persons and equates to a total of 136 sworn officers. The project is consistent with the City's General Plan and Zoning and will not substantially increase demand for police services. Therefore, no significant impacts are anticipated. iii. Schools? (No Impact) Newport-Mesa Unified School District serves the area where the OASIS Senior Center is located. Due to the type of project, it is not anticipated that the project will result in any increase in generating students. The project does not involve housing and/or business /office (employees, etc.) type uses that could generate population growth and add to the existing student population at the schools serving Newport Beach. The project will provide opportunities for a range of programs and functions to serve the needs of the senior population and the community at large. The project will not result in any significant impacts to schools. iv. Parks? (Less Than Significant Impact) The project is consistent with the City's General Plan, which notes the reconstruction of the OASIS Senior Center as an anticipated public improvement. The project will result in short-term impacts to the parking area west of Marguerite Avenue and adjacent to the passive park by the placement of temporary office space to accommodate the OASIS Senior Center staff while demolition and construction of the site are underway. However, the impact will be short term. V. Other public facilities? (No Impact) See above responses under Public Services. Due to the type of project, it is not anticipated that the project will have any significant impact on public services and/or facilities. Initial Study and Mitigated Negative Declaration Proposed OASIS Senior Center 44 -1A 14. Recreation a) Would the project increase the use of existing neighborhood and regional parks or other recreational facilities such that substantial physical deterioration of the facility would occur or be accelerated? (No Impact) The proposed project consists of demolishing the existing OASIS Senior Center and re- building it in three buildings with an additional 12,207 square feet of space. The project itself will not generate an increase in the population of the City, and therefore, will not create a demand for parks and recreational facilities. The new development will be designed to incorporate recreational amenities on- site (programs, garden plots, etc.) in keeping with City of Newport Beach General Plan Recreation Element Policies R1.9, R4.5, R4.6, R4.7, R4.8, and R4.9. The project will provide opportunities for a range of programs and functions to serve the needs of the senior community in Newport Beach. The project will not result in any potential significant increase of demand on the use of existing recreation facilities. b) Does the project include recreational facilities or require the construction of or expansion of recreational facilities which might have an adverse physical effect on the environment? Opportunities? (Less Than Significant Impact) See response to item 14.a) above. The project will expand the program space available at the existing OASIS Senior Center. However, it is not anticipated that the project will result in any significant impacts to this topical area. The project will also not require the expansion of other recreation facilities. Other City facilities will be utilized to accommodate the continuation of classes and senior activities currently offered through the OASIS Senior Center during demolition and construction. Those activities will be accommodated at other sites during open times at those facilities when they are not being used (e.g., accommodating senior classes at youth facilities while children are in school). The impact is less than significant and short-term during demolition and construction only. 15. Transportation /Traffic The information for the traffic section is based on information provided by the City of Newport Beach Traffic Engineering Section. a) Cause an increase in traffic which is substantial in relation to the existing traffic load and capacity of the street system (i.e., result in a substantial increase in either the number of vehicle trips, the volume to capacity ratio on roads, or congestion at intersections? (Less Than Significant Impact) The Public Works staff identified that the project is forecast to generate 279 trips per day. Because the proposed OASIS Senior Center project is not forecast to generate 300 or more average daily trips, a Traffic Phasing Ordinance Study is not required. During construction activities, the existing senior center programs are anticipated to be temporarily relocated to other City facilities including West Newport Community Center, Newport Coast Community Center, Community Youth Center, Bonita Creek Park, Newport Beach Arts Theatre, and Saint Michael & All Angels Church. The programs would occur during the unscheduled open hours of these facilities, which are typically morning and early afternoon. Therefore, vehicle trips will be redirected to these facilities that are temporarily providing the location for senior programs. Due to the minimal amount of trips associated with the senior center, it is not anticipated that the short-tern temporary use of other facilities will result in any significant impacts to transportation. Therefore, no significant impacts relative to traffic are anticipated as a result of the implementation of the proposed project. Initial Study and Mitigated Negative Declaration 45 Proposed OASIS Senior Center • , b) Exceed either individually or cumulatively, a level of service standard established by the county congestion management agency for designated roads or highways? (No Impact) See response to item 15.a) above. The project will not generate a significant amount of increased vehicle trips than the current OASIS Senior Center. The project is forecast to generate approximately 279 average daily trips (ADT). The project is also exempt from the Orange County Congestion Management Plan (CMP) traffic impact analysis which has a threshold of 2,400 average daily trips (ADT) or less than 1,600 ADT directly onto the CMP Highway System. Therefore, the project will not exceed either individually or cumulatively, a level of service standard. c) Result in a change in air traffic patterns, including either an increase in traffic levels or a change in location that results in substantial safety risks? (No Impact) The project will not have any impact on existing and/or planned air traffic. d) Substantially increase hazards due to a design feature (e.g., sharp curves or dangerous intersections) or incompatible uses (e.g., farm equipment)? (No Impact) The project does not propose any design features relative to curves, intersections, or incompatible uses. Therefore, the proposed project will not substantially increase hazards due to a design feature or incompatible uses. e) Result in inadequate emergency access? (No Impact) See response to item 15.a) above. The project site would have egress and ingress from Narcissus Avenue as it currently does. Additionally, the project is designed to create pedestrian access from the corner of Marguerite Avenue and Fifth Avenue to facilitate better use of parking next to the passive park. These access points and street widths would provide adequate emergency access into and out of the project site. Additional, the proposed project would be required to incorporate all applicable design and safety requirements as set forth in the UBC, Fire Code, and Newport Beach Fire and Police Department standards and requirements. Therefore, the proposed project does not result in any type of development or action that would result in inadequate emergency access. f) Result in inadequate parking capacity? (Less Than Significant Impact With Mitigation Incorporated) The project would increase parking from 99 to 153 spaces from the current OASIS Senior Center and the new facility is designed to better utilize the existing 74 spaces located in the parking lot across Marguerite Avenue next to the Grant Howald Park and Community Youth Center. A new access stairway is being constructed at Marguerite Avenue and Fifth Avenue to facilitate pedestrian access into the new OASIS Senior Center from that parking lot. On -site vehicular circulation has also been improved to allow parking to be on two sides of the building and a dedicated loading/service area has been provided adjacent to the kitchen. With the proposed completion of the expanded OASIS Senior Center, the project will provide additional parking to adequately service the parking demand. Mitigation Measure 13 The City of Newport Beach shall control parking at the new OASIS Senior Center facility through the scheduling of classes and events at the center so as to maximize and balance usage of the parking facilities. Initial Study and Mitigated Negative Declaration 46 Proposed OASIS Senior Center O, g) Conflict with adopted policies, plans, or programs supporting alternative transportation (e.g., bus turnouts, bicycle racks)? (No Impact) The Orange County Transportation Authority (OCTA) provides public transportation services in Orange County, including Newport Beach. Bus routes operate along East Coast Highway near the project site. In addition, the City of Newport Beach/OASIS Senior Center offers affordable rideshare transportation for Newport Beach seniors over the age of 60 who are no longer able to drive, consistent with General Plan Circulation Element Policy CE 4.1.2. The project is also consistent with Circulation Element Policy CE 1.1.1 which encourages a diverse transportation system that provides mobility options (CE 1.1.1 and CE 4.1.2 are presented in Table 4 in the Land Use Section beginning on page 30 of this document). Additionally, bicycle racks will be provided on site as part of the LEED certification process and shuttles will be operated to facilitate patron access to the site from the Transportation Center in Fashion Island and other transit stops. The project is not expected to negatively impact any current facility, service or service expansion plans for the project area and/or site. Therefore, the project will not conflict with adopted policies, plans, or programs supporting alternative transportation. 16. Utilities and Service Systems a) Exceed wastewater treatment requirements of the applicable Regional Water Quality Control Board? (Less Than Significant Impact) The proposed project consists of the demolition and reconstruction of the OASIS Senior Center. Due to the limited size of the project (a net increase of 12,207 square feet of senior center space) it is not anticipated that the project will exceed wastewater treatment capacity. A mitigation measure to further reduce potential impacts to water quality has been presented in item 8.a) requiring compliance with the NPDES requirements. b) Require or result in the construction of new water or wastewater treatment facilities or expansion of existing facilities, the construction of which could cause significant environmental effects? (Less Than Significant Impact With Mitigation Incorporated) See response to item 16.a) above. The City of Newport Beach Utilities Department currently provides water and wastewater services to the site. The project will not result in the significant alteration or expansion of existing utility and service systems since the site is already developed and being served by the utility providers. Due to the developed nature of the existing OASIS Senior Center and the limited size of the proposed new buildings, it is not anticipated that the project would result in any significant impacts. However, to ensure that there are no adverse impacts associated with the proposed project, a mitigation measure is presented which requires coordination with all utility and service organizations prior to the commencement of construction. Mitigation Measure 14 Prior to the issuance of grading or building permits, the City of Newport Beach (and Construction Manager) shall coordinate with utility and service organizations regarding any construction activities to ensure existing facilities are protected and any necessary expansion or relocation of facilities are planned and scheduled in consultation with the appropriate public agencies. Initial Study and Mitigated Negative Declaration Proposed OASIS Senior Center 0 c) Require or result in the construction of new storm water drainage facilities or expansion of existing facilities, the construction of which could cause significant environmental effects? (Less Than Significant Impact) See response to item 16.b) above. Due to the developed nature of the existing OASIS Senior Center and the limited size of the proposed new buildings, it is not anticipated that the project would result in any significant impacts to the storm water drainage facilities. d) Have sufficient water supplies available to serve the project from existing entitlements and resources, or are new or expanded entitlements needed? (Less Than Significant Impact) See response to item 16.b) above. Due to the limited size of the project and existing and projected water supplies, it is not anticipated that the project will result in any significant impacts relative to this topic. e) Result in a determination by the wastewater treatment provider, which serves or may serve the project that it has adequate capacity to serve the project's projected demand in addition to the provider's existing commitments? (Less Than Significant Impact) See response to item 16.b) above. The proposed project will not result in any significant impact to this topical area. f) Be served by a landfill with sufficient permitted capacity to accommodate the project's solid waste disposal needs? (Less Than Significant Impact) The site is currently being provided solid waste services by Waste Management of Orange County. Waste Management of Orange County will continue to provide solid waste disposal services to the OASIS Senior Center once the project is complete. g) Comply with federal, state, and local statutes and regulations related to solid waste? (No Impact) See response to item 16.b) above. The project itself will comply with federal, state and local statutes on solid waste disposal. No significant impacts to this topical area are anticipated. 17. Mandatory Findings of Significance a) Does the project have the potential to degrade the quality of the environment, substantially reduce the habitat of a fish or wildlife species, cause a fish or wildlife species, cause a fish or wildlife population to drop below self- sustaining levels, threaten to eliminate a plant or animal community, reduce the number or, restrict the range of a rare or endangered plant or animal or eliminate important examples of the major periods of California history or prehistory? (No Impact) On the basis of the foregoing analysis, the proposed project does not have the potential to significantly degrade the quality of the environment. The proposed project is located within an area of the City that has been developed with existing urban uses including residential, public streets, parking areas and community/park uses. The site was initially developed with a school use over 50 years ago. The subject site has been operated as the OASIS Senior Center since 1977. The property abuts residential uses, public streets and parking areas. The proposed project will replace the existing single story buildings with new updated structures and add more facility space. The new senior center will feature Initial Study and Mitigated Negative Declaration Proposed OASIS Senior Center 48 e6✓ a range of community services and activities just as it does now. The project will provide opportunities for a range of programs and functions to serve the needs of the community. Therefore, the project is consistent with the goals and polices of the City's General Plan, which have been referenced in various sections of the document. The proposed project is compatible with surrounding land uses (i.e., Grant Howald Park and residential uses). The project will not impact any sensitive nor special status habitat and/or wildlife species because the project site is not included in any Environmental Study Areas identified by the City of Newport Beach General Plan Natural Resources Element. b) Does the project have the potential to achieve short- term environmental goals to the disadvantage of long- term environmental goals? (No Impact) The project is consistent with the goals and policies of the City's General Plan (presented in Table 4 in the Land Use Section beginning on page 30 of this document) by providing more program space for the OASIS Senior Center that will serve the needs of the community and provide a range of community services and activities. The site is located in an existing developed area that already provides infrastructure to support the proposed project. The project will provide updated new buildings and upgraded on -site infrastructure for the operations of the new center. The project will provide a new 35,207 - square -foot senior center (42,751 square feet including covered walkways) within the existing 8.656 -acre site of the OASIS Senior Center. The new facility increases the useable area of the existing senior center by 12,207 square feet. Therefore, due to the limited size (additional 12,202 square feet and 8.656 acre site) and proposed use of the site (consistent with the existing use), there are no long- term environmental goals that would be compromised by the project. The project does not have the potential to achieve short-term goals to the disadvantage of long -term goals. c) Does the project have possible environmental effects which are individually limited, but cumulatively considerable? (No Impact) No cumulative impacts are anticipated in connection with this or other projects. The proposed project will replace existing structures on site with new updated and improved buildings. The project is limited in size (an increase of 12,207 square feet from that which currently exists on site) and the property is under 10 acres in size. The proposed use is consistent with the existing senior center uses and the project is proposed to serve the needs of the Newport Beach residents. The project will not result in environmental effects which are cumulatively considerable since the proposal is consistent with the goals and policies of the City's General Plan (presented in Table 4 in the Land Use Section beginning on page 30 of this document). The analysis contained in this environmental document evaluated existing conditions, potential impacts associated with the development of the project, and possible environmental cumulative impacts (e.g., traffic, parking, noise, air quality). The project does not have any impact on projected growth and planned projects for the City of Newport Beach or neighboring jurisdictions known as of the date of this analysis. d) Does the project have environmental effects which will cause substantial adverse effects on human beings, either directly or indirectly? (No Impact) There are no known substantial adverse effects on human beings that would be caused by the proposed project. The project is consistent with the land uses in the project area and the environmental evaluation has concluded that no adverse significant environmental impacts will result from the project. The project will provide upgraded and needed senior center facilities for the residents of the City of Newport Beach. All potential environmental impacts associated with the implementation of the Initial Study and Mitigated Negative Declaration 49 Proposed OASIS Senior Center 0 proposed project (e.g., air quality, hydrology /water quality, noise etc.) have been mitigated to a less than significant level. Mitigation measures for the impacts associated with each topical area are presented in the appropriate sections of this environmental document. Therefore, the project will not cause any substantial adverse effects on human beings, either directly or indirectly. Initial Study and Mitigated Negative Declaration Proposed OASIS Senior Center 50 M Appendix A City of Newport Beach 3300 Newport Boulevard Newport Beach, California 92663 Environmental Checklist Form In accordance with the policies regarding implementation of the California Environmental Quality Act (CEQA) of 1970, as amended January 1, 2008, and the CEQA Guidelines, as amended July 27, 2007, this document, combined with the attached supporting data, constitutes the initial study on the subject project. This initial study provides the basis for the determination whether the project may have a significant effect on the environment. If it is determined that the project may have a significant effect on the environment, an environmental impact report will be prepared which focuses on the areas of concern identified by this initial study. 1. Project Title: 2. Lead Agency Name and Address: 3. Contact Person and Phone Number: 4. Project Location: 5. Project Sponsor's Name and Address: 6. General Plan Designation: OASIS Senior Center Project City of Newport Beach 3300 Newport Boulevard Newport Beach, CA 92663 Janet Johnson Brown, Planning Department (949) 644 -3236 800 and 801 Marguerite Avenue Newport Beach Orange County, California Same as Lead Agency Public Facilities 7. Zoning: Open Space and Planned Community 8. Description of Project: (Briefly describe the whole action involved, including but not limited to later phases of the project, and any secondary, support, or off-site features necessary for its implementation. Attach additional sheets if necessary.) The 8.656 -acre project site is located at the northeast and northwest comers of Marguerite Avenue and Fifth Avenue in Corona del Mar within the City of Newport Beach. The site is developed with the existing OASIS Senior Center, garden plots and associated parking area on the northeast corner, and a passive park and parking lot on the northwest comer. The project involves the demolition of the existing senior center that is comprised of six separate buildings totaling approximately 23,000 square feet, 57 garden plots and the 99 -space parking lot. A new senior center is proposed to be constructed on the same site. The new facility features three single -story buildings totaling approximately 35,200 square feet of enclosed space (42,750 square feet including covered walkways), 56 new garden plots and a 153 -space parking lot. Vehicular entry to the site will remain from Narcissus Avenue. The existing parking lot on the Environmental Analysis Checklist Explanations A- 1 Proposed OASIS Senior Center M 6 northwest corner of Marguerite Avenue and Fifth Avenue will continue to provide an additional 74 parking spaces for the senior center, and no changes are proposed to this parking lot as part of this project. The project will require the installation of a retaining wall up to 11 feet in height at the base of a slope along the northeast boundary of the project site. A new built -up slope is proposed along the Fifth Avenue boundary of the site which will allow for the new building footprint to be closer to Fifth Avenue, and to allow for the increase in parking spaces. Prior to demolition of the existing senior center, the OASIS Senior Center and Friends of OASIS administrative offices will be relocated to temporary modular structures in the parking lot located on the northwest corner of Marguerite Avenue and Fifth Avenue. The temporary facilities are anticipated to include three trailers placed in a U -shape with a patio /deck area in the center of the trailers, as well as power and security parking area lighting. These temporary facilities will be removed at the time of occupancy of the new senior center. During construction activities, the existing senior center programs are anticipated to be temporarily relocated to other City facilities including West Newport Community Center, Newport Coast Community Center, Community Youth Center, Bonita Creek Park, Newport Beach Arts Theatre, and Saint Michael & All Angels Church. The programs would occur during the unscheduled open hours of these facilities, which are typically morning and early afternoon. 9. Surrounding Land Uses and Setting: (Briefly describe the project's surroundings) Residential development surrounds the project site to the north, south and east. The west side is the Grant Howald Park and parking area. Homes to the north are located on a slope that rises up behind the senior center. Homes to the east and south are approximately the same elevation as the senior center across Narcissus Avenue and Fifth Avenue. 10. Other public agencies whose approval is required: (e.g., permits, financing approval, or participation agreement.). Santa Ana Regional Water Quality Control Board. Environmental Factors Potentially Affected The environmental factors checked below would be potentially affected by this project, involving at least one impact that is a "Potentially Significant Impact" as indicated by the checklist on the following pages. ❑ Land Use Planning ❑ Population& Housing ❑ Geological Problems ❑ Water ❑ Air Quality ❑ Transportation/Circulation ❑ Biological Resources ❑ Public Services ❑ Utilities & Service Systems ❑ Energy & Mineral Resources ❑ Aesthetics ❑ Hazards ❑ Cultural Resources ❑ Noise ❑ Recreation ❑ Mandatory Findings of Significance Environmental Analysis Checklist Explanations A- 2 Proposed OASIS Senior Center 1 DETERNUNATION (To be completed by the Lead Agency.) -- Off the-tasis of this irrifial- evaluation I find that the proposed project COULD NOT have a significant effect on the ❑ environment, and a NEGATIVE DECLARATION will be prepared. I find that although the proposed project could have a significant effect on the environment, there will not be a significant effect in this case because revisions in the project have been made by or agreed to by the project proponent. A MITIGATED NEGATIVE DECLARATION will be prepared. I find that the proposed project MAY have a significant effect on the environment, and ❑ ENVIRONMENTAL IMPACT REPORT is required. I find that the proposed project MAY have a significant effects) on the environment, ❑ but at least one effect 1) has been adequately analyzed in an earlier document pursuant to applicable legal standards, and 2) has been addressed by mitigation measures based on the earlier analysis as described on attached sheets, if the effect is a "potentially significant impact" or "potentially significant unless mitigated" An ENVIRONMENTAL IMPACT REPORT is required, but it must analyze only the effects that remain to be addressed. I find that although the proposed project could have a significant effect on the ❑ environment, there WILL NOT be a significant effect in this case because all potentially significant effects (a) have been analyzed adequately in an earlier EIR or NEGATIVE DECLARATION pursuant to applicable standards and (b) have been avoided or mitigated pursuant to that earlier EIR, including revisions or mitigation measures that are imposed upon the proposed project, nothing further is required. Submitted by: City of Newport Beach Planning Department Prepared by: Hodge & Associates lO j 2q 108 Cheryle L. Hodly Date Environmental Analysis Checklist Explanations Proposed OASIS Senior Center A- 3 M City Of Newport Beach Environmental Checklist Environmental Analysis Checklist Explanations A- 4 Proposed OASIS Senior Center 184 Less than Potentially significant Less Ulan significant With Mitigation significant Impact Incorporated impact No Impact 1. AESTHETICS Would the project: a) Have a substantial adverse effect on a scenic vista? ❑ ❑ 0 ❑ b) Substantially damage scenic resources, including, but not ❑ ❑ ❑ 0 limited to, trees, rock outcroppings, and historic buildings within a state scenic highway? c) Substantially degrade the existing visual character or quality of ❑ ❑ ❑ F] the site and its surroundings? d) Create a new source of substantial light or glare which would ❑ ❑ 0 ❑ adversely affect day or nighttime views in the area? 2. AGRICULTURE RESOURCES Would the project: a) Convert Prime Farmland, Unique Farmland, or Farmland of ❑ ❑ ❑ Statewide Importance (Farmland), as shown on the maps prepared pursuant to the Farmland Mapping and Monitoring Program of the California Resources Agency, to non- agricultural use? b) Conflict with existing zoning for agricultural use, or a ❑ ❑ ❑ 0 Williamson Act contract? c) Involve other changes in the existing environment which, due ❑ ❑ ❑ 0 to their location or nature, could result in conversion of Farmland, to non - agricultural use? 3. AIRQUALITY Would the project: a) Conflict with or obstruct implementation of the applicable air ❑ ❑ 0 ❑ quality plan? b) Violate any air quality standard or contribute to an existing or ❑ ❑ ❑ 0 projected air quality violation? c) Result in a cumulatively considerable net increase of any ❑ ❑ ❑ 0 criteria pollutant for which the project region is non - attainment under an applicable federal or state ambient air quality standard (including releasing emissions which exceed quantitative thresholds for ozone precursors)? d) Expose sensitive receptors to substantial pollutant ❑ 0 O ❑ concentrations? e) Create objectionable odors affecting a substantial number of ❑ ❑ ❑ 0 people? 4. BIOLOGICAL RESOURCES Would the project: a) Have a substantial adverse effect, either directly or through ❑ ❑ ❑ F] habitat modifications, on any species identified as a candidate, sensitive, or special status species in local or regional plans, policies, or regulations or by the California Department of Fish and Game or U.S. Fish and Wildlife Service? Environmental Analysis Checklist Explanations A- 4 Proposed OASIS Senior Center 184 6. GEOLOGY AND SOILS Would the project: a) Expose people or structures to potential substantial adverse effects, including the risk of loss, injury, or death involving: 1) Rupture of a known earthquake fault, as delineated on the most recent Alquist- Priolo Earthquake Fault Zoning Map issued by the State Geologist for the area or based on other substantial evidence of a known fault? Refer to Division of Mines and Geology Special Publication 42. ii) Strong seismic ground shaking? iii) Seismic - related ground failure, including liquefaction? iv) landslides? b) Result in substantial soil erosion or the loss of topsoil? c) Be located on a geologic unit or soil that is unstable, or that would become unstable as a result of the project and potentially result in on- or off -site landslide, lateral spreading, subsidence, liquefaction or collapse? d) Be located on expansive soil, as defined in Table 18 -1 -B of the Uniform Building Code (1994), creating substantial risks to Environmental Analysis Checklist Explanations Proposed OASIS Senior Center ❑ ❑ ❑ 10 ❑ ❑ ❑ 10 ❑ ❑ 10 ❑ A- 5 q. Potentially Significant Impact Lessthan Significant With Mitigation Incorporated Lessthan Significant Impact No Impact b) Have a substantial adverse effect on any riparian habitat or ❑ ❑ ❑ 10 other sensitive natural community identified in locator regional plans, policies, regulations or by the California Department of Fish and Game or U.S. Fish and Wildlife Service? c) Have a substantial adverse effect on federally protected ❑ ❑ ❑ 10 wetlands as defined by Section 404 of the Clean Water Act (including, but not limited to, marsh, vernal pool, coastal, etc.) through direct removal, filling, hydrological interruption, or other means? d) Interfere substantially with the movement of any native resident ❑ ❑ ❑ 10 or migratory fish or wildlife species or With established native resident or migratory wildlife corridors, or impeded the use of native wildlife nursery sites? e) Conflict with any local policies or ordinances protecting ❑ ❑ ❑ 10 biological resources, such as a tree preservation policy or ordinance? f) Conflict with the provisions of an adopted Habitat Conservation ❑ ❑ ❑ 10 Plan, Natural Community Conservation Plan, or other approved local, regional, or state habitat conservation plan? 5. CULTURAL RESOURCES Would the project: a) Cause a substantial adverse change in the significance of a ❑ ❑ 10 ❑ historical resource as defined in §15064.5? b) Cause a substantial adverse change in the significance of an ❑ 10 ❑ ❑ archaeological resource pursuant to §15064.5? c) Directly or indirectly destroy a unique paleontological resource ❑ ❑ 10 ❑ or site or unique geologic feature? d) Disturb any human remains, including those interred outside of ❑ 10 ❑ ❑ 6. GEOLOGY AND SOILS Would the project: a) Expose people or structures to potential substantial adverse effects, including the risk of loss, injury, or death involving: 1) Rupture of a known earthquake fault, as delineated on the most recent Alquist- Priolo Earthquake Fault Zoning Map issued by the State Geologist for the area or based on other substantial evidence of a known fault? Refer to Division of Mines and Geology Special Publication 42. ii) Strong seismic ground shaking? iii) Seismic - related ground failure, including liquefaction? iv) landslides? b) Result in substantial soil erosion or the loss of topsoil? c) Be located on a geologic unit or soil that is unstable, or that would become unstable as a result of the project and potentially result in on- or off -site landslide, lateral spreading, subsidence, liquefaction or collapse? d) Be located on expansive soil, as defined in Table 18 -1 -B of the Uniform Building Code (1994), creating substantial risks to Environmental Analysis Checklist Explanations Proposed OASIS Senior Center ❑ ❑ ❑ 10 ❑ ❑ ❑ 10 ❑ ❑ 10 ❑ A- 5 q. Environmental Analysis Checklist Explanations Proposed OASIS Senior Center A- 6 Potentially Significant Lessthan Significant with Mitigation Significant Impact incorporated Impact No Impact e) Have soils incapable of adequately supporting the use septic ❑ ❑ ❑ 0 tanks or aftemative waste water disposal systems where sewers are not available for the disposal of waste water? 7. HAZARDS AND HAZARDOUS MATERIALS Would the project: a) Create a significant hazard to the public or the environment ❑ m ❑ ❑ through routine transport, use, or disposal of hazardous materials? b) Create a significant hazard to the public or the environment ❑ ❑ m ❑ through reasonably foreseeable upset and accident conditions involving the release of hazardous materials into the environment? c) Emit hazardous emissions or handle hazardous or acutely ❑ m ❑ ❑ hazardous materials, substances, or waste within one - quarter mile of an existing or proposed school? d) Be located on a site which is included on a list of hazardous ❑ ❑ ❑ 8 materials sites compiled pursuant to Government Code Section 65962.5 and, as a result, would it create a significant hazard to the public or the environment? e) For a project within an airport land use plan or, where such a ❑ ❑ m ❑ plan has not been adopted, within two miles of a public airport or public use airport, would the project result in a safety hazard for people residing or working in the projec area? Q For a project within the vicinity of a private airstrip, would the ❑ ❑ ❑ 8 project result in a safety hazard for people residing or working in the project area? g) Impair implementation of or physically interfere with an ❑ ❑ ❑ m adopted emergency response plan or emergency evacuation plan? h) Expose people or structures to a significant risk of loss, injury ❑ ❑ ❑ El or death involving wildland fires, including where Midlands are adjacent to urbanized areas or where residences are intermixed with wildlands? 8. HYDROLOGY AND WATER QUALITY Would the project: a) Violate any water quality standards or waste discharge ❑ m ❑ ❑ requirements? b) Substantially deplete groundwater supplies or interfere ❑ ❑ ❑ 8 substantially with groundwater recharge such that there would be a net deficit in aquifer volume or a lowering of the local groundwater table level (e.g., the production rate of pre- existing nearby wells would drop to a level which would not support existing land uses or planned uses for which permits have been granted)? c) Substantially after the existing drainage pattern of the site or ❑ ❑ m ❑ area, including through the alteration of the course of a stream or river, in a manner which would result in substantial erosion or siltation on- or off -site? Environmental Analysis Checklist Explanations Proposed OASIS Senior Center A- 6 Environmental Analysis Checklist Explanations Proposed OASIS Senior Center A- 7 a' � Less than Potentially significant Less than Significant With Mitigation significant Impact Incorporated Impact No Impact d) Substantially after the existing drainage pattern of the site or ❑ ❑ ❑ D area, including through the alteration of a course of a stream or river, or substantially increase the rate or amount of surface runoff in a manner which would result in flooding on or off -site? e) Create or contribute runoff water which would exceed the ❑ ❑ ❑ D rapacity of existing or planned stormwater drainage systems or provide substantial additional sources of polluted runoff? f) Otherwise substantially degrade water quality? ❑ ❑ D ❑ g) Place housing within a 100 -year flood hazard area as mapped ❑ ❑ ❑ D on a federal Flood Hazard Boundary or Flood Insurance Rate Map or other flood hazard delineation map? h) Place within a 100 -year flood hazard area structures which ❑ ❑ ❑ 0 would impede or redirect flood flows? i) Expose people or structures to a significant risk of loss, injury ❑ ❑ ❑ D or death involving flooding, including flooding as a result of the failure of a levee or dam? j) Inundation by seiche, tsunami, or mudflow? ❑ ❑ ❑ D 9. LAND USE AND PLANNING Would the proposal: a) Physically divide an established community? ❑ ❑ ❑ D b) Conflict with any applicable land use plan, policy, or regulation ❑ ❑ ❑ D of an agency with jurisdiction over the project (including, but not limited to the general plan, specific plan, local coastal program, or zoning ordinance) adopted for the purpose of avoiding or mitigating an environmental effect? c) Conflict with any applicable habitat conservation plan or natural ❑ ❑ ❑ 0 community conservation plan? 10. MINERAL RESOURCES Would the project: a) Result in the loss of availability of a known mineral resource ❑ ❑ ❑ D that would be of value to the region and the residents of the state? b) Result in the loss of availability of a locally-irrportant mineral ❑ ❑ ❑ D resource recovery site delineated on a local general plan, specific plan, or other land use plan? 11. NOISE Would the project result in: a) Exposure of persons to or generation of noise levels in excess ❑ 0 ❑ ❑ of standards established in the local general plan or noise ordinance, or applicable standards of other agencies? b) Exposure of persons to or generation of excessive ❑ ❑ D ❑ groundbome vibration or groundborne noise levels? c) A substantial permanent increase in ambient noise levels in the ❑ ❑ D ❑ project vicinity above levels existing without the project? d) A substantial temporary or periodic increase in ambient noise ❑ ❑ D ❑ levels in the project vicinity above levels existing without the project? Environmental Analysis Checklist Explanations Proposed OASIS Senior Center A- 7 a' � Environmental Analysis Checklist Explanations Proposed OASIS Senior Center M q:3 Lessthan Potentially Signficant Lessthan Significant With Mitigation Significant Impact Inc rated Impact No Impact e) For a project located within an airport land use land use plan ❑ ❑ ❑ lid or, where such a plan has not been adopted, within two miles of a public airport or public use airport, would the project expose people residing or working in the project area to excessive noise levels? f) For a project within the vicinity of a private airstrip, would the ❑ ❑ O fig project expose people residing or working in the project area to excessive noise levels? 12. POPULATION AND HOUSING Would the project: a) Induce substantial population growth in an area, either directly ❑ ❑ ❑ Ll (for example, by proposing new homes and businesses) or indirectly (for example, through extension of roads or other infrastructure)? b) Displace substantial numbers of existing housing, ❑ ❑ ❑ lid necessitating the construction of replacement housing elsewhere? c) Displace substantial numbers of people, necessitating the ❑ ❑ O fig construction of replacement housing elsewhere? 13. PUBLIC SERVICES a) Would the project result in substantial adverse physical ❑ ❑ fig ❑ impacts associated with the provision of new or physically altered government facilities, need for new or physically altered government facilities, the construction of which could cause significant environmental impacts, in order to maintain acceptable service ratios, response times or other performance objectives for any of the public services: Fire protection? ❑ ❑ fig ❑ Police protection? ❑ ❑ fig ❑ Schools? ❑ ❑ ❑ Ll Parks? ❑ ❑ R1 ❑ Other public facilities? ❑ ❑ O fig 14. RECREATION a) Would the project increase the use of existing neighborhood ❑ ❑ ❑ lid and regional parks or other recreational facilities such that substantial physical deterioration of the facility would occur or be accelerated? b) Does the project include recreational facilities or require the ❑ ❑ p ❑ construction of or expansion of recreational facilities which might have an adverse physical effect on the environment? 15. TRANSPORTATIONITRAFFIC Would the project: a) Cause an increase in traffic which is substantial in relation to ❑ ❑ fig ❑ the existing traffic load and capacity of the street system (i.e., result in a substantial increase in either the number of vehicle trips, the volume to capacity ratio on roads, or congestion at Intersections)? b) Exceed either individually or cumulatively, a level of service p ❑ O fig standard established by the county congestion management agency for designated roads or highways? Environmental Analysis Checklist Explanations Proposed OASIS Senior Center M q:3 Environmental Analysis Checklist Explanations A- 9 Proposed OASIS Senior Center RA Less than Potentially significant Less than significant With Mitigation significant Impact Incorporated Impact No Impact c) Result in a change in air traffic patterns, including either an ❑ ❑ ❑ H increase in traffic levels or a change in location that results in substantial safety risks? d) Substantially increase hazards due to a design feature (e.g., ❑ ❑ ❑ H sharp curves or dangerous intersections) or incompatible uses (e.g., farm equipment)? e) Result in inadequate emergency access? ❑ ❑ ❑ H Q Result in inadequate parking capacity? ❑ H ❑ ❑ g) Conflict with adopted policies, plans, or programs supporting ❑ ❑ ❑ H alternative transportation (e.g., bus turnouts, hic de racks)? 16. UTILITIES & SERVICE SYSTEMS Would the project: a) Exceed wastewater treatment requirements of the applicable ❑ ❑ H ❑ Regional Water Quality Control Board? h) Require or result in the construction of new water or ❑ H ❑ ❑ wastewater treatment facilities or expansion of existing facilities, the construction of which could cause significant environmental effects? c) Require or result in the construction of new storm water ❑ ❑ H ❑ drainage facilities or expansion of existing facilities, the construction of which could cause significant environmental effects? d) Have sufficient water supplies available to serve the project ❑ ❑ H ❑ from existing entitlements and resources, or are new or expanded entitlements needed? e) Result in a determination by the wastewater treatment ❑ ❑ H ❑ provider, which serves or may serve the project that it has adequate capacity to serve the projects projected demand in addition to the provider's existing commitments? f) Be served by a landfill with sufficient permitted capacity to ❑ ❑ H ❑ accommodate the project's solid waste disposal needs? g) Comply with federal, state, and local statutes and regulation ❑ ❑ ❑ H related to solid waste? 17. MANDATORY FINDINGS OF SIGNIFICANCE a) Does the project have the potential to degrade the quality of ❑ ❑ ❑ H the environment, substantially reduce the habitat of a fish or wildlife species, cause a fish or wildlife population to drop below self - sustaining levels, threaten to eliminate a plant or animal community, reduce the number or restrict the range of a rare or endangered plant or animal or eliminate important examples of the major period of California history or prehistory? h) Does the project have the potential to achieve short-term ❑ ❑ ❑ H environmental goals to the disadvantage of long -term environmental goals? c) Does the project have possible environmental effects which ❑ ❑ ❑ H are individually limited, but cumulatively considerable? d) Does the project have environmental effects which will cause ❑ ❑ ❑ H substantial adverse effects on human beings, either directly or Environmental Analysis Checklist Explanations A- 9 Proposed OASIS Senior Center RA 17. EARLIER ANALYSES. Earlier analyses may be used where, pursuant to the tiering, program EIR, or other CEQA process, one or more effects have been adequately analyzed in an earlier EIR or negative declaration. Section 15063(c)(3)(0). In this case a discussion should identify the following on attached sheets: a) Earlier analyses used. Identify earlier analyses and state where they are available for review. b) Impacts adequately addressed. Identify which effects from the above checklist were within the scope of and adequately analyzed in an earlier document pursuant to applicable legal standards, and state whether such effects were addressed by mitigation measures based on the earlier analysis. c) Mitigation measures. For effects that are "Less than Significant with Mitigation Incorporated, "describe the mitigation measures, which were incorporated or refined from the earlier document and the extent to which they address site - specific conditions for the project. Environmental Analysis Checklist Explanations A- 10 Proposed OASIS Senior Center A5 Source List The following documents are incorporated into this Initial Study by reference pursuant to California Code of Regulations § 15150. The following enumerated documents are available at the offices of the City of Newport Beach, 3300 Newport Boulevard, Newport Beach, California 92663. 1. General Plan, including all its elements, as amended. City of Newport Beach. 2. General Plan Update - Environmental Impact Report, State Clearinghouse No. 2006011119, City of Newport Beach. 2006. 3. Zoning Code. City of Newport Beach. 4. South Coast Air Quality Management District, Air Quality Management Plan, April 9, 2003. 5. South Coast Air Quality Management District, Air Quality Management Plan EIR, April 9, 2003. 6. South Coast Air Quality Management District, Air Quality Management Plan, 2007. 7. South Coast Air Quality Management District, Air Quality Management Plan EIR, 2007. 8. California Environmental Quality Act as amended January 1, 2008. §§21000-21177 of the Public Resources Code, State of California. 9. Guidelines for California Environmental Quality Act as amended July 27, 2007. § 15000 -15387 of the California Code of Regulations, Title 14, Chapter 3, State of California. http://www.ceres.ca.gov/ceqa/ 10. City of Newport Beach Historic Resource Inventory. 11. OASIS Senior Center Noise Study dated July 14, 2008 prepared by Giroux and Associates, Inc. 12. OASIS Senior Center Air Quality Study dated July 14, 2008 prepared by Giroux and Associates, Inc. 13. OASIS Senior Center Reconstruction Geotechnical Investigation Report dated April 18, 2008 prepared by Leighton Consulting, Inc. 14. OASIS Senior Center Geotechnical Recommendations for Proposed Retaining Wall dated June 3, 2008 prepared by Leighton Consulting, Inc. 15. State of California Governor's Executive Order S -3 -05. 16. Assembly Bill AB 32 Global Warming Solutions Act of 2006. Environmental Analysis Checklist Explanations A- I I Proposed OASIS Senior Center HE Appendix B Mitigation Monitoring & Reporting Program Mitigation Monitoring and Reporting Program Proposed OASIS Senior Center B- 1 Implementation Method of Timing of Responsible No. Mitigation Measures Action Verification Verification Person Verification Date Air Quality 1 During construction activities, the City of Newport Beach (and the Condition of Field Inspections During Planning Dept. construction contractor) shall ensure that the following measures are Approval construction complied with to reduce short-term (construction) air quality impacts activities assodated with the project: a) controlling fugitive dust by regular watering, covering all stock piles with tarps, applying soil stabilizers to inactive areas, preparing a high wind dust control plan and implementing plan elements and terminating soil disturbance when winds exceed 25 mph, stabilizing previously disturbed areas if subsequent construction is delayed, and replacing ground cover in disturbed areas as soon as feasible to meet South Coast Air Quality Management District (SCAQMD) Rule 403 (Fugitive Dust); b) maintaining equipment engines in proper tune, limiting allowable idling to 5 minutes for trucks and heavy equipment, requiring low - NOx tune -ups for off -road equipment, and utilizing diesel particulate filters on heavy equipment where feasible; and c) phasing and scheduling construction activities to minimize project- related emissions. 2 During construction activities, the City of Newport Beach (and the Condition of Field Inspections During construction contractor) shall ensure that the project will comply with Approval construction SCAQMD Rule 402 (Nuisance), to reduce odors from construction activities activities. Use low VOC paints, coatings, sealants and adhesives, and high pressure low volume sprayers for architectural coating applications. 3 Contractor shall obtain a haul route permit from the City Public Works Condition of Plan Check Prior to the start of Public Works Department. Approval construction Dept. Mitigation Monitoring and Reporting Program Proposed OASIS Senior Center B- 1 Mitigation Monitoring and Reporting Program Proposed OASIS Senior Center B- 2 Implementation Method of Timing of Responsible No. Mitigation Measures Action Verification Verification Person Verification Date Cultural Resources 4 A qualified archeologist shall be retained to observe grading activities Condition of Plan Check Prior to the Planning Dept and conduct salvage excavation of archeological resources as Approval issuance of a necessary. The archeologist shall be present at the pre-grading grading permit conference, shall establish procedures for archeological resources surveillance, and shall establish, in cooperation with the City, procedures for temporarily halfing or redirecting work to permit the sampling, identification and evaluation of the artifacts as appropriate. If additional or unexpected archeological features are discovered, the archeologist shall report such findings to the City Planning Department. If the archeological resources are found to be significant, the archeological observer shall determine appropriate actions, in cooperation with the City, for exploration and/or salvage. These actions, as well as final mitigation and disposition of the resources, shall be subject to the approval of the Planning Direcio . 5 In accordance with the Public Resources Code §5097.94,1 human Condition of Field Inspection as During grading Public Works Dept. remains are found, the Orange County Coroner must be notified within Approval necessary activities 24 hours of the discovery. If the Coroner determines that the remains are not recent, the Coroner will notify the Native American Heritage Commission in Sacramento to determine the most likely descendent for the area. The designated Native American representative then determines in consultation with the City the disposition of the human remains. Geology & Soils 6 During construction activities, the City of Newport Beach (and the Condition of Field Inspections During construction Public Works Dept, construction contractor) shall ensure that the project incorporates Approval activities recommendations presented in the Geology Report dated April 18, 2008, and the Geotechnical Letter dated June 3, 2008, prepared by Leighton Consulting, Inc. for the retaining wall on the eastern property boundary. Mitigation Monitoring and Reporting Program Proposed OASIS Senior Center B- 2 Mitigation Monitoring and Reporting Program Proposed OASIS Senior Center e- B- 3 Implementation Method of Timing of Responsible No. Mitigation Measures Action Verification Verification Person Verification Date Hazards & Hazardous Materials 7 In the event that hazardous materials are discovered during the grading Condition of Field Inspections During grading & Public Works Dept. or demolition activities, the City of Newport Beach (and Construction Approval demolition Manager) shall provide evidence that ensures that the identified activities hazardous waste and /or hazardous materials are handled and disposed of in the manner specified by the State of California Hazardous Substances Control Law (Health and Safety Code Division 20, Chapter 6.5), standards established by the California Department of Health Services and Office of Statewide Planning and Development, and according to the requirements of the California Administrative Code, Title 30. 8 Prior to the issuance of any building permits for new construction, the Condition of Plan Check Prior to issuance of Planning Dept. City of Newport Beach (and Construction Manager) shall submit design Approval any building plans to the City's Planning Department for review and approval to permits ensure that identified hazardous waste and /or hazardous materials are stored, handled and disposed of in compliance with state and federal guidelines, and as directed by the City's Planning Department. 9 The City of Newport Beach shall ensure that grading and building plans Condition of Plan Check Prior to start of Public Works Dept. include the following measures and that the measures shall be followed Approval construction by the construction contractor and crew: 1. The storage of hazardous materials, chemicals, fuels, and oils and fueling of construction equipment shall be a minimum of 45 meters It 50 feet) from any drainage, water supply, or other water feature. 2. Hazardous materials stored onsite shall be stored in a neat, orderly manner in the appropriate containers and, if possible, under a roof or other enclosure. 3. Whenever possible, all of a product shall be used up before disposal of its container. 4. If surplus product must be disposed of, methods for disposal recommended by the manufacturer or the City and the state shall be followed. 5. Spills shall be contained and cleaned up immediately after discovery. Manufacturers methods for spill cleanup of a material shall be followed as described on the Material Safety Data Sheets (MSDS) for each product. Mitigation Monitoring and Reporting Program Proposed OASIS Senior Center e- B- 3 Mitigation'Monitoring and Reporting Program Proposed OASIS Senior Center 0 01 B- 4 Implementation p Method of , Ti ming +of Responsible No. Mitigation Measures Action Verification Verification Person Verification Date Hydrology & Water Quality 10 Prior to the commencement of any grading activities, a Water Quality Condition of Plan Check Prior to issuance of Public Works Dept. Management Plan (WQMP) will be prepared. The WQMP shall identify Approval a grading permit Best Management Practices (BMPs) that will be utilized on site to control and during /after pollution runoff. The City shall,comply with and implement all the project con- applicable requirements of the NPDES,permit.. struction. 11 Prior to the commencement of grading activities, a Notice of Intent (NQI) Condition of Plan Check Prior to the start of Public,Works Dept. will be filed with the State Water Quality Control Board. Approval grading activities NOISE 12 During constructions activities (including site preparation, etc.) the Condition of Field Inspections During Public Works project will comply with the applicable requirements of the City's Noise 1 Approval as necessary construction Dept. Ordinance, activities Transportation/ Traffic 13 The City - of'Newport Beach shall control parking at the new OASIS Condition of Plan Check During operations Public Works Dept. Senior Center facility through the scheduling of classes and events at Approval of the new senior the center so as to maximize and balance usage of the parking facilities. center. Utilities and Service Systems 14 Prior to the issuance of grading or building permits, the City of Newport Condition of Plan Check Prior to start of Public Works Beach (and Construction Manager) shall coordinate with utility and Approval grading activities Dept. service organizations regarding any construction activities to ensure existing facilities are protected and any necessary expansion or relocation of facilities are planned and scheduled in consultation with the appropriate public agencies. Mitigation'Monitoring and Reporting Program Proposed OASIS Senior Center 0 01 B- 4 Appendix C Air Quality Analysis - Giroux and Associates dated July 14, 2008 Air Quality Analysis Proposed OASIS Senior Center p AIR QUALITY ANALYSIS OASIS SENIOR CENTER CITY OF NEWPORT BEACH, CALIFORNIA Prepared for: Hodge & Associates Attn: Cheryle Hodge 24040 Camino Del Avion #A247 Monarch Beach, California 92629 Date: July 14, 2008 Project No.: P08 -037 A `im METEOROLOGICAL SETTING The project site's climate, as with all Southern California, is dominated by the strength and position of the semi - permanent high pressure pattern over the Pacific Ocean near Hawaii. It creates cool summers, mild winters, and infrequent rainfall. It drives the cool daytime sea breeze, and it maintains comfortable humidities and ample sunshine after the frequent morning clouds dissipate. Unfortunately, the same atmospheric processes that create the desirable living climate combine to restrict the ability of the atmosphere to disperse the air pollution generated by the large population attracted in part by the desirable climate. Portions of the Los Angeles Basin therefore experience some of the worst air quality in the nation for certain pollutants. Temperatures in the City of Newport Beach average 61 degrees annually. Daily and seasonal oscillations of temperature are small because of the moderating effects of the nearby oceanic thermal reservoir. In contrast to the steady temperature regime, rainfall is highly variable. Measurable precipitation occurs mainly from early November to mid -April, but total amounts are generally small. Newport Beach averages 12 inches of rain annually with January as the wettest month. Winds in the project vicinity display several characteristic regimes. During the day, especially in summer, winds are from the south in the morning and from the west in the afternoon. Daytime wind speeds are 7 — 9 miles per hour on average. At night, especially in winter, the land becomes cooler than the ocean, and an off -shore wind of 3 -5 miles per hour develops. Early morning winds are briefly from the south-east parallel to the coastline before the daytime on- shore flow becomes well established again. One other important wind regime occurs when high pressure occurs over the western United States that creates hot, dry and gusty Santa Ana winds from the north and northeast across Newport Beach. The net effect of the wind pattern on air pollution is that any locally generated emissions will be carried offshore at night, and toward inland Orange County by day. Daytime ventilation is much more vigorous. Unless daytime winds rotate far into the north and bring air pollution from developed areas of the air basin into Newport Beach, warm season air quality is much better in the project vicinity than in inland valleys of the air basin. Both summer and winter air quality in the project area is generally good. In addition to winds that control the rate and direction of pollution dispersal, Southern California is notorious for strong temperature inversions that limit the vertical depth through which pollution can be mixed. In summer, coastal areas are characterized by a sharp discontinuity between the cool marine air at the surface and the warm, sinking air aloft within the high pressure cell over the ocean to the west. This marine /subsidence inversion allows for good local mixing, but acts like a giant lid over the basin. Air starting onshore at the beach is relatively clean, but becomes progressively more polluted as sources continue to add pollution from below without any dilution from above. Because of Newport Beach's location relative to the ocean, the incoming marine air during warm season onshore flow contains little air pollution. Local air quality is not substantially affected by the regional subsidence inversions. P084370nsie Senior, Ne"ont Beech 'b A second inversion type forms on clear, winter nights when cold air off the mountains sinks to the surface while the air aloft remains warm. This process forms radiation inversions. These inversions, in conjunction with calm winds, trap pollutants such as automobile exhaust near their source. During the long nocturnal drainage flow from land to sea, the exhaust pollutants continually accumulate within the shallow, cool layer of air near the ground. Some areas of Orange County thus may experience elevated levels of carbon monoxide and nitrogen oxides because of this winter radiation inversion condition. However, the coastal areas of Orange County have not substantially been affected by limited nocturnal mixing effects (no elevated levels of CO) in approximately 10 years. Both types of inversions occur throughout the year to some extent, but the marine inversions are very dominant during the day in summer, and radiation inversions are much stronger on winter nights when nights are long and air is cool. The governing role of these inversions in atmospheric dispersion leads to a substantially different air quality environment in summer in the South Coast Air Basin than in winter. Po8A3] peas Srnior, Newport Beach AIR QUALITY SETTING AMBIENT AIR QUALITY STANDARDS (AAQS) In order to gauge the significance of the air quality impacts of the proposed Oasis Senior Center project, those impacts, together with existing background air quality levels, must be compared to the applicable ambient air quality standards. These standards are the levels of air quality considered safe, with an adequate margin of safety, to protect the public health and welfare. They are designed to protect those people most susceptible to further respiratory distress such as asthmatics, the elderly, very young children, people already weakened by other disease or illness, and persons engaged in strenuous work or exercise, called "sensitive receptors." Healthy adults can tolerate occasional exposure to air pollutant concentrations considerably above these minimum standards before adverse effects are observed. Recent research has shown, however, that chronic exposure to ozone (the primary ingredient in photochemical smog) may lead to adverse respiratory health even at concentrations close to the ambient standard. National AAQS were established in 1971 for six pollution species with states retaining the option to add other pollutants, require more stringent compliance, or to include different exposure periods. The initial attainment deadline of 1977 was extended several times in air quality problem areas like Southern California. hi 2003, the Environmental Protection Agency (EPA) adopted a rule which extended and established a new attainment deadline for ozone for the year 2021. Because the State of California had established AAQS several years before the federal action and because of unique air quality problems introduced by the restrictive dispersion meteorology, there is considerable difference between state and national clean air standards. Those standards currently in effect in California are shown in Table 1. Sources and health effects of various pollutants are shown in Table 2. The Federal Clean Air Act Amendments (CAAA) of 1990 required that the U.S. Environmental Protection Agency (EPA) review all national AAQS in light of currently known health effects. EPA was charged with modifying existing standards or promulgating new ones where appropriate. EPA subsequently developed standards for chronic ozone exposure (8+ hours per day) and for very small diameter particulate matter (called "PM-2.5"). New national AAQS were adopted in 1997 for these pollutants. Planning and enforcement of the federal standards for PM -2.5 and for ozone (8 -hour) were challenged by trucking and manufacturing organizations. In a unanimous decision, the U.S. Supreme Court ruled that EPA did not require specific congressional authorization to adopt national clean air standards. The Court also ruled that health -based standards did not require preparation of a cost - benefit analysis. The Court did find, however, that there was some inconsistency between existing and "new" standards in their required attainment schedules. Such attainment - planning schedule inconsistencies centered mainly on the 8 -hour ozone standard. EPA subsequently agreed to downgrade the attainment designation for a large number of communities to "non- attainment" for the 8 -hour ozone standard. POM370 ie Sem., Nepo Beach -3- `' {{'`` `V� Table 1 Ambient Air Quality Standards Source: Califomia Air Resources Board (01101108) �a � California Standards Federal Standards Averaging Pollutant Time Concentration Method Primary Secondary Method Ozone (O3) 1 Hour 0.09 ppm (180 PWM3) UlUavidet Scone as Ultraviolet 8 Hour 0.07 pp gl m (140 pm3) 0.08 ppm (157 pglm3) Ph otome � Prima ry Standard Photometry Respirable 24 Hour 50 pg7m3 150 pghn3 Inertial Separation Annual Particulate Gravimetic or Beta Attenuation Same as Primary Standard and Gravimeaic Matter (PMto) Arithmetic 20 pg1m3 Revoked (2006) Analysis Mean Fine 24 Hour No Separate State Standard 35 pg1m3 Same as Inertial Separation Particulate Annual Arithmetic 12 pgrm3 Gravimerric or Beta 15 pg7m3 Primary Standard and Gravimetic Analysis Matter (PMz.S) Attenuation Mean 8 Hour 9.0 ppm (10 mg4N) 9 ppm (10 mglm3) Non- Disperslve Carbon Non-Dispersive Name Inhared Photometry Monoxide How 20 ppm (23 mghm) Infrared Photometry 35 ppm (40 mg4n3) (NDIR) 8How (CO) (NDIR) (Lake Tahoe) 6 ppm (7 mqW) Nitrogen Annual Arithmetic 0.030 ppm (56 pglm3) Gas Phase 0.053 ppm (100 pghW) Same as Gas Phase Dioxide Mean Chemiluminescence Primary Standard Chemiluminescence (NO2) 1 Hour 0.18 ppm (338 pglm3) - 30-Day average 1.5 pglm3 - - - Calendar Sameas High Volume Lead Atomic Absorption (loaner - 1.5 pg1m3 Primary Standard Sampler and Atomic Absorption Annual Arithmetic - 0.030 ppm (80 pglm3) - Mean Sulfur Dioxide Ultraviolet Spectrophotometry (PaMr�dn)me 24 Hour 0.04 ppm (105 pgm) 0.14 ppm (365 pglm3) - ($Oaj Fluorescence 3 Hour - - 0.5 ppm (1,300 pglm3) 1 Hour 0.25 ppm (655 pglm3) - - Eairxtion coefficient of 0.23 per kilometer - VlSlbillty visibility of 10 miles or more (0.07 -30 miles or Reducing g Hour more for Lake Tahoe) due to panicles when No relalive humidity is less than 70 percent. Particles Method: Beta Attenuation and Transmittance through Filter Tape. Federal Sulfates 24 Hour 25 pglm3 Ion Chromatography Hydrogen 1 Hour 0.03 PP m (42 pty m3) Ulraviolet Sulfide Fluorescence Standards Vinyl Chloride 24 Hour 0.01 ppm (26 pgrm3) Gas Chromatography Source: Califomia Air Resources Board (01101108) �a � Table 2 Health Effects of Major Criteria Pollutants Pollutants Sources Primary Effects Carbon Monoxide • Incomplete combustion of fuels and other • Reduced tolerance for exercise. (CO) carbon - containing substances, such as motor • Impairment of mental function. exhaust. • Impairment of fetal development. • Natural events, such as decomposition of • Death at high levels of exposure. organic matter. • Aggravation of some hear[ diseases (angina). Nitrogen Dioxide • Motor vehicle exhaust. • Aggravation of respiratory illness. (NO2) • High temperature stationary combustion. • Reduced visibility. • Atmospheric reactions. • Reduced plant growth. • Formation of acid rain. Ozone • Atmospheric reaction of organic gases with • Aggravation of respiratory and (Os) nitrogen oxides in sunlight, cardiovascular diseases. • Irritation of eyes. • Impairment of cardiopulmonary function. • Plant leaf injury. Lead (Ph) • Contaminated soil. • Impairment of blood function and nerve construction. • Behavioral and hearing problems in children. Fine Particulate Matter • Stationary combustion of solid fuels. • Reduced lung function. (PM -10) • Construction activities. • Aggravation of the effects of gaseous • Industrial processes. pollutants. • Atmospheric chemical reactions. • Aggravation of respiratory and cardio respiratory diseases. • Increased cough and chest discomfort. • Soiling. • Reduced visibility. Fine Particulate Matter • Fuel combustion in motor vehicles, • Increases respiratory disease. (PM -2.5) equipment, and industrial sources. • Lung damage. • Residential and agricultural burning. • Cancer and premature death. • Industrial processes. • Reduces visibility and results in surface • Also, formed from photochemical reactions soiling. of other pollutants, including NOx, sulfur oxides, and organics. Sulfur Dioxide • Combustion of sulfur- containing fossil fuels. • Aggravation of respiratory diseases (asthma, (S0o • Smelting of sulfur- bearing metal ores. emphysema). • Industrial processes. • Reduced lung function. • Irritation of eyes. • Reduced visibility. • Plant injury. • Deterioration of metals, textiles, leather, finishes, coatings, etc. Source: California Air Resources Board, 2002. �0 Because the South Coast Air Basin was far from attaining the 1 -hour federal standard, the 8 -hour ozone non - attainment designation did not substantially alter the attainment planning process. As noted above, compliance deadline for meeting the 8 -hour ozone standard has been extended to 2021. Evaluation of the most current data on the health effects of inhalation of fine particulate matter prompted the California Air Resources Board (ARB) to recommend adoption of the statewide PM -2.5 standard that is more stringent than the federal standard. This standard was adopted on June 20, 2002. The State PM -2.5 standard is more of a goal in that it does not have specific attainment planning requirements like a federal clean air standard, but only requires continued progress towards attainment. Similarly, the ARB extensively evaluated health effects of ozone exposure. A new state standard for an 8 -hour ozone exposure was adopted in April 2005, which mirrors the federal standard. The California 8 -hour ozone standard of 0.07 ppm is more stringent than the federal 8 -hour standard of 0.08 ppm. The state standard, however, does not have a specific attainment deadline. California air quality jurisdictions are required to make steady progress towards attaining state standards, but there are no hard deadlines or any consequences of non - attainment. As part of the same re- evaluation process, the ARB adopted an annual state standard for nitrogen dioxide (NO2) that is more stringent than the corresponding federal standard, and strengthened the state one - hour NO2 standard. As part of EPA's 2002 consent decree on clean air standards, a further review of airborne particulate matter (PM) and human health was initiated. A substantial modification of federal clean air standards for PM was promulgated in 2006. Standards for PM -2.5 were strengthened, a new class of PM in the 2.5 to 10 micron size was created, some PM -10 standards were revoked, and a distinction between rural and urban air quality was adopted. Of the standards shown in Table 1, those for ozone (03), and particulate matter (PM -10 and PM- 2.5) are exceeded at times in the South Coast Air Basin. They are called "non- attainment pollutants." Because of the variations in both the regional meteorology and in area -wide differences in levels of air pollution emissions, patterns of non - attainment have strong spatial and temporal differences. M8 -0I7 Owns Senior, Newport Beech -6- 14 BASELINE AIR QUALITY Existing and probable future levels of air quality in Newport Beach can be best inferred from ambient air quality measurements conducted by the South Coast Air Quality Management District (SCAQMD) at its Costa Mesa and Mission Viejo monitoring stations. These stations measure both regional pollution levels such as dust (particulates) and smog, as well as levels of primary vehicular pollutants such as carbon monoxide. Table 3 summarizes the last six years of the published data from a composite of gaseous species monitored at Costa Mesa and particulates at Mission Viejo (there are no particulate data available from Costa Mesa). The following conclusions can be drawn from these data: a. Photochemical smog (ozone) levels only occasionally exceed standards. The former Federal one -hour standard has not been exceeded within the last six years, while the new 8 -hour state ozone standard has been exceeded only 7 times in the past four years. The 1 -hour state standard has been violated a total of 6 times for the last six years near Costa Mesa. Ozone levels are generally low near Orange County's central costal areas. b. Measurements of carbon monoxide have shown very low baseline levels in comparison to the most stringent one- and eight -hour standards. c. Respirable dust (PM -10) levels periodically exceed the state standard, but the less stringent federal PM -10 standard has never been violated since PM -10 measurements began at El Toro/ Mission Viejo. There were three violations of the state PM -10 standard in 2007, the most since 2002. d. No violations of the recently revoked federal ultra -fine particulate (PM -2.5) standard of 65 gg/m3 have been recorded in six years of measurements. However, the recently adopted, more stringent standard of 35 gg/m3 has been exceeded an average of 1.3 percent of all measurement days. Although complete attainment of every clean air standard is not yet imminent, extrapolation of the steady improvement trend suggests that such attainment could occur within the reasonably near future. POB-070.,m$6.,, Ne .o Brach -]. lb", Table 3 Air Quality Monitoring Summary (2002 -2007) (Number of Days Standards Were Exceeded, and Maximum Levels During Such Violations) (Entries shown as ratios = samples exceeding standard /samples taken) Pollutant/Standard 2002 2003 2004 2005 2006 2007 Ozone 1 -Hour > 0.09 ppm (S) 0 4 2 0 0 0 1 -Hour > 0.12 ppm (F)* 0 0 0 0 0 0 8 -Hour > 0.07 ppm (S) - - 5 0 0 2 8- Hour> 0.08 ppm (F) 0 1 1 0 0 0 Max. 1 -Hour Conc. (ppm) 0.09 0.11 0.10 0.09 0.07 0.08 Carbon Monoxide 1 -hour > 20. ppm (S) 0 0 0 0 0 0 8- Hour> 9. ppm (S,F) 0 0 0 0 0 0 Max 1 -hour Conc. (ppm) 5.0 7.0 5.0 5.0 4.0 5.0 Max 8 -hour Conc. (ppm) 4.3 5.8 4.1 3.2 j 3.0 3.1 Inhalable Particulates (PM -10) 24 -hour > 50 µg/m' (S) 5/60 2/57 0/57 0/55 1/50 3/58 24 -hour > 150 pg/m3 (F) 0/60 0/57 0/57 0155 0150 0/58 Max. 24 -Hr. Conc. (µg/m') 80. 64. 47. 31. 57. 74. Ultra -Fine Particulates (PM -2.5) 24 -Hour > 65 µg /m' (F) 0/119 0/109 0 /111 0/114 0/106 0/98 24 -Hour > 35 µg /m3(F) ** 4/119 3/109 3/111 0/114 1/106 2/98 Max. 24 -Hr. Conc. (µg/m3) 58. 51. 49, 35. 47. 47. * standard revoked in 2006 ** revised standard adopted in 2006 Source: South Coast Air Quality Management District, Costa Mesa Station for gaseous species; Mission Viejo for particulates. (S) = state standard, (F) = federal standard K8.D37 Oasis ScNor, Nc pon 8,.h .S 0 AIR QUALITY PLANNING The Federal Clean Air Act (1977 Amendments) required that designated agencies in any area of the nation not meeting national clean air standards must prepare a plan demonstrating the steps that would bring the area into compliance with all national standards. The South Coast Air Basin (SCAB) could not meet the deadlines for ozone, nitrogen dioxide, carbon monoxide, or PM -10. In the SCAB, the agencies designated by the governor to develop regional air quality plans are the SCAQMD and the Southern California Association of Governments (SCAG). The two agencies first adopted an Air Quality Management Plan (AQMP) in 1979 and revised it several times as earlier attainment forecasts were shown to be overly optimistic. The 1990 Federal Clean Air Act Amendment (CAAA) required that all states with air -sheds with "serious" or worse ozone problems submit a revision to the State Implementation Plan (SIP). Amendments to the SIP have been proposed, revised and approved over the past decade. The most current regional attainment emissions forecast for ozone precursors (ROG and NOx) and for carbon monoxide (CO) and for particulate matter are shown in Table 4. Substantial reductions in emissions of ROG, NOx and CO are forecast to continue throughout the next several decades. Unless new particulate control programs are implemented, PM -10 and PM -2.5 are forecast to slightly increase. The Air Quality Management District (AQMD) adopted an updated clean air "blueprint" in August 2003. The 2003 AQMP was approved by the EPA in 2004. The Air Quality Management Plan (AQMP) outlined the air pollution measures needed to meet federal health - based standards for ozone by 2010 and for particulates (PM -10) by 2006. Components of the 2003 air plan included: • How the federal standard for CO will be maintained • Control measures to further reduce emissions from business, industry and paints. • Measures to be adopted by CARB and EPA to further reduce pollution from: Cars Trucks Construction equipment r Aircraft rs Ships Consumer products P08o 70.a Seniac Na ,.o Beech -9- l` 4 Table 4 South Coast Air Basin Emissions Forecasts (Emissions in tons/day) Pollutant 20052 20106 2015" 2020° NOx 957 756 586 496 ROG 684 567 517 492 CO 3838 2943 2395 2056 PM -10 276 278 284 292 PM -2.5 97 97 98 100 '2005 Base Year. bWith current emissions reduction programs and adopted growth forecasts. Source: California Air Resources Board, The 2006 California Almanac of Emission & Air Quality. POMP Oe Sm., Me .d Beach 10- �l-�k With re- designation of the air basin as non - attainment for the 8 -hour ozone standard, a new attainment plan has been developed. This plan shifts most of the one -hour ozone standard attainment strategies to the 8 -hour standard. As previously noted, the attainment date will "slip" from 2010 to 2021. The updated attainment plan also includes strategies for ultimately meeting the federal PM -2.5 standard. The 2007 AQMP was adopted on June 1, 2007, after extensive public review. The 2007 AQMP recognizes the interaction between photochemical processes that create both ozone and the smallest airborne particulates (PM -2.5). The 2007 AQMP is therefore a coordinated plan for both pollutants. Key emissions reductions strategies in the updated air quality plan include: - Ultra -low emissions standards for both new and existing sources (including on- and- off -road heavy trucks, industrial and service equipment, locomotives, ships and aircraft). - Accelerated fleet turnover to achieve benefits of cleaner engines. - Reformulation of consumer products. - Modernization and technology advancements from stationary sources (refineries, power plants, etc.) Development, such as the proposed Oasis Senior Center project do not directly relate to the AQMP in that there are no specific air quality programs or regulations governing "general' development. Conformity with adopted plans, forecasts and programs relative to population, housing, employment and land use is the primary yardstick by which impact significance of master planned growth is determined. If a given project incorporates any available transportation control measures that can be implemented on a project- specific basis, and if the scope and phasing of a project are consistent with adopted forecasts as shown in the Regional Comprehensive Plan (RCP), then the regional air quality impact of project growth would not be significant because of planning inconsistency. The SCAQMD, however, while acknowledging that the AQMP is a growth- accommodating document, does not favor designating regional impacts as less - than - significant just because the proposed development is consistent with regional growth projections. Air quality impact significance for the proposed project has therefore been analyzed on a project- specific basis. POM37 Oasis Smior, Ne on Beech -1 - �i3 AIR QUALITY IMPACT SIGNIFICANCE CRITERIA Air quality impacts are considered "significant" if they cause clean air standards to be violated where they are currently met, or if they measurably contribute to an existing violation of standards. Any substantial emissions of air contaminants for which there is no safe exposure, or nuisance emissions such as dust or odors, would also be considered a significant impact. Appendix G of the California CEQA Guidelines offer the following five tests of air quality impact significance. A project would have a potentially significant impact if it: a. Conflicts with or obstructs implementation of the applicable air quality plan. b. Violates any air quality standard or contributes substantially to an existing or projected air quality violation. c. Results in a cumulatively considerable net increase of any criteria pollutant for which the project region is non - attainment under an applicable federal or state ambient air quality standard (including releasing emissions that exceed quantitative thresholds for ozone precursors). d. Exposes sensitive receptors to substantial pollutant concentrations. e. Creates objectionable odors affecting a substantial number of people. PRIMARY POLLUTANTS Air quality impacts generally occur on two scales of motion. Near an individual source of emissions or a collection of sources such as a crowded intersection or parking lot, levels of those pollutants that are emitted in their already unhealthful form will be highest. Carbon monoxide (CO) is an example of such a pollutant. Primary pollutant impacts can generally be evaluated directly in comparison to appropriate clean air standards. Violations of these standards where they are currently met, or a measurable worsening of an existing or future violation, would be considered a significant impact. Many particulates, especially fugitive dust emissions, are also primary pollutants. Because of the non - attainment status of the South Coast Air Basin (SCAB) for PM -10, an aggressive dust control program is required to control fugitive dust. SECONDARY POLLUTANTS Many pollutants, however, require time to transform from a more benign form to a more unhealthful contaminant. Their impact occurs regionally far from the source. Their incremental regional impact is minute on an individual basis and cannot be quantified except through complex photochemical computer models. Analysis of the significance of such emissions is thus based on a specified amount of emissions (pounds, tons, etc.) even though there is no way to translate those emissions directly into a corresponding ambient air quality impact. P08L37 0.k Seni., Newport Beach 12- 'J Because of the chemical complexity of primary versus secondary pollutants, the SCAQMD has designated significant emissions levels as surrogates for evaluating impact significance independent of chemical transformation processes. Projects within the SCAB with daily emissions that exceed any of the following emission thresholds are recommended by the SCAQMD to be considered significant: SCAQMD Emissions Significance Thresholds (lbs /day) Pollutant Construction Operations ROG 75 55 NOx 100 55 CO 550 550 PM -10 150 150 PM -2.5 55 55 Sox 150 150 Lead 3 3 Source: SCAQMD CEQA Air Quality Handbook, November, 1993 Rev. ADDITIONAL INDICATORS In its CEQA handbook, the SCAQMD also states that additional indicators should be used as screening criteria to determine the need for further analysis with respect to air quality. The additional indicators are as follows: Project could interfere with the attainment of the federal or state ambient air quality standards by either violating or contributing to an existing or projected air quality violation. • Project could result in population increases within the regional statistical area which would be in excess of that projected in the AQMP and in other than planned locations for the project's build -out year. • Project could generate vehicle trips that cause a CO hot spot. The SCAQMD CEQA Handbook also identifies various secondary significance criteria related to toxic, hazardous or odorous air contaminants. Hazardous air contaminants are contained within the small diameter particulate matter ( "PM -2.5 ") fraction of diesel exhaust. Such exhaust will be generated by heavy off -road construction equipment and by diesel - powered delivery trucks delivering construction materials to the facility. Hazardous compounds may also be presenting older building materials that could be released during demolition. Prior to demolition detailed surveys will be conducted to ascertain the possible presence of asbestos, lead -based paint, etc. If any such materials are present, they will be remediated using mandatory procedures specified by P08 -037 Oafs Sertior, Ne pw &azh ,7. 11.5 the SCAQMD and state air toxics agencies. Other than diesel exhaust during construction, the project will create negligible air toxics emissions. Health risks from toxic air contaminants (TAC's) are cumulative over an assumed 70 -year lifespan. Measurable off -site public health risk from diesel TAC exposure would occur for only a brief portion of a project lifetime during facility construction, and only in dilute quantity because of substantial source- receiver separation. SENSITIVE RECEPTORS Air quality impacts are analyzed relative to those persons with the greatest sensitivity to air pollution exposure. Such persons are called "sensitive receptors". Sensitive population groups include young children, the elderly and the acutely and chronically ill (especially those with cardio- respiratory disease). Residential areas are considered to be sensitive to air pollution exposure because they may be occupied for extended periods, and residents may be outdoors when exposure is highest. The nearest homes to the project site are considered sensitive receptors relative to the proposed project. CONSTRUCTION ACTIVITY IMPACTS Dust is typically the primary concern during construction of new buildings and infrastructure. Because such emissions are not amenable to collection and discharge through a controlled source, they are called "fugitive emissions." Emission rates vary as a function of many parameters (soil silt, soil moisture, wind speed, area disturbed, number of vehicles, depth of disturbance or excavation, etc.). These parameters are not known with any reasonable certainty prior to project development and may change from day to day. Any assignment of specific parameters to an unknown future date is speculative and conjectural. Because of the inherent uncertainty in the predictive factors for estimating fugitive dust generation, regulatory agencies typically use one universal "default" factor based on the area disturbed assuming that all other input parameters into emission rate prediction fall into midrange average values. This assumption may or may not be totally applicable to site - specific conditions on the proposed project site. As noted previously, emissions estimation for project - specific fugitive dust sources is therefore characterized by a considerable degree of imprecision. Average daily PM -10 emissions during site grading and other disturbance are stated in the SCAQMD Handbook to be 26.4 pounds /acre. This estimate is based upon required dust control measures in effect in 1993 when the AQMD CEQA Air Quality Handbook was prepared. Rule 403 was subsequently strengthened to require use of a greater array of fugitive dust control on construction projects. All construction projects in the SCAQMD are required to use strongly enhanced control procedures. Use of enhanced dust control procedures such as continual soil wetting, use of supplemental binders, early paving, etc. can achieve a substantially higher PM -10 MM370 sSmim, Nc .. B.6 -la- control efficiency. Daily emissions with use of reasonably available control measures ( RACMs) for PM -10 can reduce emission levels to around ten (10) pounds per acre per day. With the use of best available control measures (BACMs) the California Air Resources Board URBEMIS2007 computer model predicts that emissions can be reduced to 1 -2 pounds per acre per day. The proposed site is approximately 5 acres in size. The Air Resource Board URBEMIS2007 computer model predicts that 0.4 acres could be under simultaneous heavy construction at some point during the build -out lifetime of the project. With the use of RACMs, daily PM -10 emissions during site grading (exclusive of demolition activities) would be 4 pounds per day (0.4 X 10.0 = 4 lb /day). The SCAQMD significance threshold of 150 pounds per day would not be exceeded. With the use of Best Available Control Measures (BACM), daily PM -10 emissions can be further reduced. Because of the PM -10 non - attainment status of the air basin, construction activity dust emissions are considered to have a cumulatively significant impact. Use of BACMs is thus required even if SCAQMD individual CEQA thresholds are not exceeded by use of RACMs. Current research in particulate- exposure health suggests that the most adverse effects derive from ultra -small diameter particulate matter comprised of chemically reactive pollutants such as sulfates, nitrates or organic material. A national clean air standard for particulate matter of 2.5 microns or smaller in diameter (called 'PM -2.5 ") was adopted in 1997. A limited amount of construction activity particulate matter is in the PM -2.5 range. PM -2.5 emissions are estimated by the SCAQMD to comprise 20.8 percent of PM -10. Other studies have shown that the fugitive dust fraction of PM -2.5 is closer to 10 percent. Daily PM -2.5 emissions during construction will be approximately 1 pound per day compared to the SCAQMD CEQA significance threshold of 55 pounds per day. In addition to fine particles that remain suspended in the atmosphere semi- indefinitely, construction activities generate many larger particles with shorter atmospheric residence times. This dust is comprised mainly of large diameter inert silicates that are chemically non - reactive and are further readily filtered out by human breathing passages. These fugitive dust particles are therefore more of a potential soiling nuisance as they settle out on parked cars, outdoor fumiture or landscape foliage rather than any adverse health hazard. The deposition distance of most soiling nuisance particulates is less than 100 feet from the source (EPA, 1995). There are several sensitive receptors within 100 feet from the project construction site perimeter. Exhaust emissions will result from on and off -site heavy equipment. The types and numbers of equipment will vary among contractors such that such emissions cannot be quantified with certainty. Initial demolition and grading will gradually shift toward building construction and then for finish construction, paving, landscaping, etc. The URBEMIS2007 computer model was used to calculate emissions from the following prototype construction equipment fleet: FOG -037 O.d< 6.,, Ne pon Beech -IS- )�l Demolition I Concrete Saw 1 Dozer 2 Tractors/Loaders /Backhoes Grading 1 Grader 1 Dozer 1 Tractor /Loader /Backhoe 1 Water Truck Construction 1 Small Crane 2 Forklifts 1 Tractor /Loader /Backhoe Paving 4 Cement Mixers 1 Paver 1 Roller 1 Tractor/Loader /Backhoe Calculated construction activity emissions for an assumed 12 months of activity are summarized as follows: Construction Activity Emissions (pounds /davll Activity ROG NOs CO SOZ PM -10 PM -2.5 CO= Demolition and Grading* No Mitigation 4.7 37.9 21.1 0.0 9.0 3.4 3,603.5 With Mitigation 4.7 32.8 21.1 0.0 3.7 1.1 3,603.5 Construction, Paving and Coating No Mitigation 10.7 12.2 8.9 0.0 1.1 1.0 1,258.6 With Mitigation 9.9 10.4 8.9 0.0 0.2 0.2 1,258.6 SCAQMD Threshold 75 100 550 150 150 55 - x Includes demolition of 23,000 square feet of existing structures Source: URBEMIS2007 Model, Output in Appendix With or without the use of mitigation, peak daily construction activity emissions will be below CEQA SCAQMD thresholds and will be further reduced by recommended mitigation. The recommended emissions mitigation measures are detailed in the "Mitigation" section of this report. Construction equipment exhaust contains carcinogenic compounds within the diesel exhaust particulates. The toxicity of diesel exhaust is evaluated relative to a 24 -hour per day, 365 days per year, 70 -year lifetime exposure. Public exposure to heavy equipment emissions will be an PM17O k Snim. WMPOR Beach 0 extremely small fraction of the above dosage assumption. Diesel equipment is also becoming progressively 'cleaner" in response to air quality rules on new off -road equipment. Any public health risk associated with project - related heavy equipment operations exhaust is therefore not quantifiable, but small. Construction activity air quality impacts occur mainly in close proximity to the surface disturbance area. There may, however, be some "spill- over" into the surrounding community. That spill -over may be physical as vehicles drop or carry out dirt or silt is washed into public streets. Passing non - project vehicles then pulverize the dirt to create off -site dust impacts. "Spillover" may also occur via congestion effects. Construction may entail roadway encroachment, detours, lane closures and competition between construction vehicles (trucks and contractor employee commuting) and ambient traffic for available roadway capacity. Emissions controls require good housekeeping procedures and a construction traffic management plan that will maintain such "spill- over" effects at a less- than - significant level. LOCAL SIGNIFICANCE THRESHOLDS The SCAQMD has developed analysis parameters to evaluate ambient air quality on a local level in addition to the more regional emissions -based thresholds of significance. These analysis elements are called Local Significance Thresholds (LSTs). LSTs were developed in response to Governing Board's Environmental Justice Enhancement Initiative 1 -4 and the LST methodology was provisionally adopted in October 2003 and formally approved by SCAQMD's Mobile Source Committee in February 2005. Use of an LST analysis for a project is optional because they were derived for economically or socially disadvantaged communities. For recreational developments, the only source of LST impact would be during construction. LSTs are only applicable to the following criteria pollutants: oxides of nitrogen (NOx), carbon monoxide (CO), and particulate matter (PM -10 and PM -2.5). LSTs represent the maximum emissions from a project that are not expected to cause or contribute to an exceedance of the most stringent applicable federal or state ambient air quality standard, and are developed based on the ambient concentrations of that pollutant for each source receptor area and distance to the nearest sensitive receptor. The URBEMIS model estimates that the daily construction disturbance "footprint" will be 0.4 acres of the 5 acre site. LST pollutant concentration data is currently published for 1, 2 and 5 acre sites. Utilizing data for a 1 acre site and a source receptor distance of 25 meters, the following thresholds are determined (pounds per day): North Coastal Orange County CO NOx PM -10 PM -2.5 LST Threshold 352 160 4 3 Proposed Project Unmitigated 9 -21 12 -38 1 -9 1 -3 Mitigated 9 -21 10 -33 1 -4 1 All mitigated emissions are below LST thresholds for construction. PO"37 oasis SemO Nmpo"Beach 17. )l I OPERATIONAL IMPACTS Possible project - related air quality concerns will derive from the mobile source emissions that will be generated from the recreational uses proposed for the project site. The new Oasis Senior Center is to be 12,204 square feet larger than the existing facility. It is anticipated that an additional 279 new daily trips will be generated as a result of this expansion, with an associated 2,512 vehicle miles traveled (VMT) per day. Operational emissions for project - related traffic were calculated using a computerized procedure developed by the California Air Resources Board (CARB) for urban growth mobile source emissions. The URBEMIS2007 model was run using the trip generation factors obtained from the ITE Trip Generation 7s' Edition for Recreational Community Centers. The model was used to calculate area source emissions and the resulting vehicular operational emissions for an assumed project build -out year of 2010. The results are shown in Table 5. The additional trips generated by this project will not cause the SCAQMD's recommended threshold levels to be exceeded. Project- related emission levels for the two ozone precursor pollutants (ROG and NOx) would represent 4 and 5 percent of the significance threshold, respectively. Carbon monoxide (CO) would similarly not exceed the suggested significance threshold by a large margin of safety. Operational emissions will be at a less - than - significant level. POM37 Oasis Semur.New Bnh . ig. `b Table 5 Project- Related Emissions Burden P08.037O Smi ,Newport Beach 9-� is- Emissions (lbs /day) Year 2010 ROG NOx CO SO2 PM -10 PM -2.5 CO2 Area Sources 0.4 0.4 1.8 0.0 0.0 0.0 411.2 Mobile Sources 2.0 2.5 24.3 0.0 4.3 0.8 2,542.7 Total 2.4 2.9 26.1 0.0 4.3 0.8 2,953.9 SCAQMD Threshold 55 55 550 150. 150 55 - Percent of Threshold 4 5 5 <1 3 1 NA Exceeds Threshold? No No No No No No NA P08.037O Smi ,Newport Beach 9-� is- GREENHOUSE GAS EMISSIONS "Greenhouse gases" (so called because of their role in trapping heat near the surface of the earth) emitted by human activity are implicated in global climate change, commonly referred to as "global warming." These greenhouse gases contribute to an increase in the temperature of the earth's atmosphere by transparency to short wavelength visible sunlight, but near opacity to outgoing terrestrial long wavelength heat radiation. The principal greenhouse gases (GHGs) are carbon dioxide, methane, nitrous oxide, ozone, and water vapor. Fossil fuel consumption in the transportation sector (on -road motor vehicles, off - highway mobile sources, and aircraft) is the single largest source of GHG emissions, accounting for approximately half of GHG emissions globally. Industrial and commercial sources are the second largest contributors of GHG emissions with about one -fourth of total emissions. California has passed several bills and the Governor has signed at least three executive orders regarding greenhouse gases. The Governor's Office of Planning and Research is in the process of developing CEQA significance thresholds for GHG emissions but thresholds have yet to be established. GHG statues and executive orders (EO) include AB 32, SB 1368, EO S- 03 -05, EO S -20 -06 and EO S- 01 -07. AB 32 is one of the most significant pieces of environmental legislation that California has adopted. Among other things, it is designed to maintain California's reputation as a "national and international leader on energy conservation and environmental stewardship" It will have wide - ranging effects on California businesses and lifestyles as well as far reaching effects on other states and countries. A unique aspect of AB 32, beyond its broad and wide- ranging mandatory provisions and dramatic GHG reductions are the short time frames within which it must be implemented. Major components of the AB 32 include: • Require the monitoring and reporting of GHG emissions beginning with sources or categories of sources that contribute the most to statewide emissions. • Requires immediate "early action" control programs on the most readily controlled GHG sources. • Mandates that by 2020, California's GHG emissions be reduced to 1990 levels. • Forces an overall reduction of GHG gases in California by 2540 %, from business as usual, over the next 13 years (by 2020). • Must complement efforts to achieve and maintain federal and state ambient air quality standards and to reduce toxic air contaminants. Statewide, the framework for developing the implementing regulations for AB 32 is under way. Additionally, through the California Climate Registry (CCAR), general and industry- specific protocols for assessing and reporting GHG emissions have been developed. GHG sources are categorized into direct sources (i.e. company owned) and indirect sources (i.e. not company owned). Direct sources include combustion emissions from on -and off -road mobile sources, and fugitive emissions. Indirect sources include off -site electricity generation and non - company owned mobile sources. PDM7 OLI Sedw. N.,n B.,h 20 ffl, 12 Impacts - Greenhouse Gas Emissions Implementation of the proposed project would contribute to long -term increases in greenhouse gases (GHGs) as a result of traffic increases (mobile sources) and minor secondary fuel combustion emissions from space heating, etc. Development occurring as a result of the proposed project would also result in secondary operational increases in GHG emissions as a result of electricity generation to meet project - related increases in energy demand. Electricity generation in California is mainly from natural gas -fired power plants. However, since California imports about 20 to 25 percent of its total electricity (mainly from the northwestern and southwestern states), GHG emissions associated with electricity generation could also occur outside of California. Short-term GHG emissions will also derive from construction activities. During project construction, the URBEMIS2007 computer model predicts that a peak activity day will generate the following CO2 emissions: Demolition - 3,603 pounds /day Construction - 1,259 pounds/day For purposes of analysis, it was assumed that non -0O2 GHG emissions are negligible, and that the total project construction GHG burden can be characterized by 20 peak demolition/grading days and 100 peak construction days. The estimated annual GHG impact is estimated as follows: Demolition = (3,603 1bs/day x 20 peak days /year) / 2,000 lbs/ ton = 36.0 tons/year Construction = (1,259 lbs /day x 100 peak days/year) /2,000 lbs /ton = 63.0 tons /year In 2004, the statewide annual GHG inventory in CO2- equivalent levels (including all non -CO2 gases weighted by their thermal absorption potential) was 492,000,000 metric tons (541,000,000 short tons). The worst -case project constriction impact of 63.0 tons /year represents approximately 0.00001% percent of the statewide burden. New daily operational CO2 emissions from project - related traffic and area source emissions are predicted to be 2,954 pounds per day. Annually, this translates into 539 tons per year. This represents slightly more than 0.0001 percent of the most recent statewide inventory. There are no adopted thresholds of GHG emissions significance. However, GHG emissions are implicated in the acceleration of global warming experienced in the last several decades. Climatic impacts are global in scale. Any project- specific contribution to the global issue is miniscule. In the absence of any definitive thresholds of significance, the GHG emphasis on a project- specific level is to incorporate project design features that reduce energy consumption and reduce vehicular travel as much as is reasonably feasible. Unless there is a greater shift to clean energy such as solar, hydroelectric, wind, nuclear, etc., no substantial reduction in GHG is likely attainable by conventional methods except through energy conservation P08-037 Oasis Smioq Ne on Reach 21 �O Greenhouse Gas Emissions Reduction Measures GHG reduction options on a project -level basis are similar to those measures designed to reduce criteria air pollutants (those with ambient air quality standards). Measures that reduce trip generation or trip lengths, measures that optimize the transportation efficiency of a region, and measures that promote energy conservation within a development will reduce GHG emissions. Additionally, carbon sequestering can be achieved through urban forestry measures. Project - specific mitigation recommendations to reduce the global cumulative impact from project implementation include the following: Land Use and Transportation • Provide site design elements that will accommodate and promote future utilization of public transit • Develop incentives for the use of alternatives to the single occupant vehicle (SOV) for site access Energy Conservation • Construct the new center to meet LEED (Leadership in Energy and Environmental Design) Silver Certification • Maximize use of low pressure sodium and/or fluorescent lighting • Require acquisition of new appliances and equipment to meet Energy Star certification Urban Forestry • Plant trees or vegetation to shade buildings and thus reduce heating/ cooling demand • Select landscaping that is fast - growing while minimizing water demand to sequester carbon while reducing electrical loads associated with regional water transportation • Participate in green waste collection and recycling programs for landscape maintenance P08 -037 OasisS 6 ,,Ne .A Beach 22 lAA MITIGATION CONSTRUCTION EMISSIONS MITIGATION Construction activity air pollution emissions are not anticipated to individually exceed SCAQMD CEQA thresholds. Regardless, the non - attainment status of the air basin requires that Best Available Control Measures (BACMs) be used where feasible. Recommended construction activity mitigation including BACM's includes: Dust Control • Apply soil stabilizers to inactive areas. • Prepare a high wind dust control plan and implement plan elements and terminate soil disturbance when winds exceed 25 mph. • Stabilize previously disturbed areas if subsequent construction is delayed. • Water exposed surfaces 3 times /day. • Cover all stock piles with tarps. • Replace ground cover in disturbed areas as soon as feasible. Exhaust Emissions • Require 90 -day low -NOx tune -ups for off -road equipment. • Limit allowable idling to 5 minutes for trucks and heavy equipment. • Utilize equipment whose engines are equipped with diesel oxidation catalysts if available. • Utilize diesel particulate filter on heavy equipment where feasible. Painting and Coatings • Use low VOC coatings and high pressure -low volume sprayers. OPERATIONAL EMISSIONS MITIGATION Operational emissions will not exceed adopted significance thresholds. Po 37 Oasis Senior, Newport Beech 23 1a4) APPENDIX URBEMIS2007 Computer Model Output R8 -037 orris Senior, We on H ach pa Page: 1 711012008 1:44:32 PM Urbemis 2007 Version 9.2.4 Combined Summer Emissions Reports (Pounds/Day) File Name: CADocuments and Settings\Sara\Application Data\ Urbemis\Version9a\Projects\Oasis Senior Center.urb924 Project Name: Oasis Senior Center Project Location: Orange County On -Road Vehicle Emissions Based on: Version : Emfac2007 V2.3 Nov 1 2006 Off -Road Vehicle Emissions Based on: OFFROAD2007 Page: 2 7/10/2008 1:44:33 PM Summary Report: CONSTRUCTION EMISSION ESTIMATES ROG NOX S2 PM10 Dust PM10 Exhaust PM10 PM2.5 Dust PM2.5 Exhaust PM2.5 2009 TOTALS (lbs/day unmitigated) 4.71 37.95 21.05 0.01 6.93 2.11 9.04 1.45 1.94 3.39 2009 TOTALS (lbs/day mitigated) 4.71 32.76 21.05 0.01 3.30 0.43 3.73 0.69 0.40 1.09 2010 TOTALS (lbs/day unmitigated) 10.74 12.21 8.88 0.00 0.02 1.04 1.05 0.01 0.96 0.96 2010 TOTALS (lbs/day mitigated) 9.87 10.42 8.88 0.00 0.02 0.17 0.18 0.01 0.15 0.16 AREA SOURCE EMISSION ESTIMATES ROG NOx M B42 PM10 PM2.5 QM TOTALS (lbs/day, unmitigated) 0.35 0.36 1.84 0.00 0.01 0.01 411.25 OPERATIONAL (VEHICLE) EMISSION ESTIMATES ROG NOx QQ 392 PM10 PM2.5 X42 TOTALS (Ibs /day, unmitigated) 2.03 2.51 24.27 0.03 4.33 0.84 2,542.69 SUM OF AREA SOURCE AND OPERATIONAL EMISSION ESTIMATES ROG NOx SR S02 PM10 PM2.5 TOTALS (lbs/day, unmitigated) 2.38 2.87 26.11 0.03 4.34 0.85 2.953.94 Construction Unmitigated 'Detail Report: CONSTRUCTION EMISSION ESTIMATES Summer Pounds Per Day, Unmitigated RQQ NQx fQ 5D2 PM10 Dust PM10 Exhaust PM10 PM2.5 Dust PM2.5 Exhaust P1 00O22 3.603.47 3,603.47 1.258.55 1,258.55 Page: 3 7/10/2008 1:44:33 PM Time Slice 11/2/2009- 11/30/2009 1.49 11.43 7.02 0.01 2.92 - 0.77 3.70 0.61 0.71 1.32 1,231.67 Active Days: 21 , Demolition 1110112009- 1.49 11.43 7.02 0.01 2.92 0.77 3.70 0.61 0.71 1.32 1,231.67 12/31/2009 Fugitive Dust 0.00 0.00 0.00 0.00 2.90 0.00 2.90 0.60 0.00 0.60 0.00 Demo Off Road Diesel 1.23 8.15 4.78 0.00 0.00 0.64 0.64 0.00 0.59 0.59 700.30 Demo On Road Diesel 0.23 3.22 1.18 0.00 0.01 0.13 0.14 0.00 0.12 0.12 406.89 Demo Worker Trips 0.03 0.06 1.06 0.00 0.01 0.00 0.01 0.00 0.00 0.00 124.48 Time Slice 12/1/2009 - 12/3112009 4.71 37.95 21.05 0-01 ILM LU am 1,45 1.74 3.39 �0 3Z Active Days: 23 Demolition 1110112009- 1.49 11.43 7.02 0.01 2.92 0.77 3.70 0.61 0.71 1.32 1.231.67 12/31/2009 Fugitive Dust 0.00 0.00 0.00 0.00 2.90 0.00 2.90 0.60 0.00 0.60 0.00 Demo Off Road Diesel 123 8.15 4.78 0.00 0.00 0.64 0.64 0.00 0.59 0.59 700.30 Demo On Road Diesel 0.23 3.22 1.18 0.00 0.01 0.13 0.14 0.00 0.12 0.12 406.89 Demo Worker Trips 0.03 0.06 1.06 0.00 0.01 0.00 0.01 0.00 0.00 0.00 124.48 Fine Grading 1210112009- 3.21 26.52 14.03 0.00 '4.01 1.34 5.34 034 1.23 2.07 2,371.80 12131/2009 Fine Grading Dust 0.00 0.00 0.00 0.00 4.00 0.00 4.00 0.84 0.00 0.84 0.00 Fine Grading Off Road Diesel 3.18 26.46 12.98 0.00 0.00 1.33 1.33 0.00 1.23 1.23 2,247.32 Fine Grading On Road Diesel 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Fine Grading Worker Trips 0.03 0.06 1.06 0.00 0.01 0.00 0.01 0.00 0.00 0.00 124.48 Time Slice 1/1/2010 -6130/2010 1.31 9.66 7.33 0.00 0.02 0.60 0.61 0.01 0.55 0.56 1.245.96 Active Days: 129 Building 01/01/2010 - 09130/2010 1.31 9.66 7.33 0.00 0.02 0.60 0.61 0.01 0.55 0.56 1,245.96 Building Off Road Diesel 1.21 9.16 4.81 0.00 0.00 0.58 0.58 0.G0 0.53 0.53 893.39 Building Vendor Trips 0.03 0.37 0.29 0.00 0.00 0.02 0.02 0.00 0.01 0.01 72.15 Building Worker Trips 0.07 0.13 2.22 0.00 0.01 0.01 0.02 0.00 0.01 0.01 280.43 1f7 Page: 4 7/10/2005 1:44:33 PM Time Slice 711/2010- 9130/2010 Active Days: 66 Building 01101/2010- 09/30/2010 Building Off Road Diesel Building Vendor Trips Building Worker Trips Coating 07/0112010-10131/2010 Architectural Coating Coating Worker Trips Time Slice 101112010-1012912010 Active Days: 21 Asphalt 10/0112010-10/31/2010 Paving Off -Gas Paving Off Road Diesel Paving On Road Diesel Paving Worker Trips Coating 0710112010 - 10/3112010 Architectural Coating Coating Worker Trips 9.98 9.67 7.43 0.00 0-Q 0.60 0.61 4.41 0.55 0.56 1258.5 im` 1.31 9.66 7.33 0.00 0.02 0.60 0.61 0.01 0.55 0.56 1,245.96 1.21 9.16 4.81 0.00 0.00 0.58 0.58 0.00 0.53 0.53 893.39 0.03 0.37 0.29 0.00 0.00 0.02 0.02 0.00 0.01 0.01 72.15 0.07 0.13 2.22 0.00 0.01 0.01 0.02 0.00 0.01 0.01 280.43 8.67 0.01 0.10 - 0.00 0.00 0.00 0.00 0.00 0.00 0.00 12.59 8.67 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.10 0.00 0.00 0.00 0.00 0.00 0.00 0.00 12.59 10.74 12.21 LIM 0.00 0.01 1,044 LU 0.00 4.96 0-96 1,238.57 2.07 12.20 8.78 0.00 0.01 1.04 1.05 0.00 0.96 0.96 1,225.98 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1.95 11.89 6.98 0.00 0.00 1.03 1.03 0.00 0.94 0.94 979.23 0.02 0.21 0.08 0.00 0.00 0.01 0.01 0.00 0.01 0.01 28.98 0.05 0.10 1.72 0.00 0.01 0.01 0.02 0.00 0.00 0.01 217.78 8.67 0.01 0.10 0.00 0.00 0.00 0.00 0.00 0.00 0.00 12.59 8.67 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.10 0.00 0.00 0.00 0.00 0.00 0.00 0.00 12.59 Phase Assumptions Phase: Demolition 11/1/2009 - 12/3112009 - Default Demolition Description Building Volume Total (cubic feet): 277248 Building Volume Daily (cubic feet): 6912 On Road Truck Travel (VMT): 96 Off -Road Equipment: 1 Concrete /Industrial Saws (10 hp) operating at a 0.73 load factor for 8 hours per day C1YV Page: 5 7/10/2008 1:44:33 PM 1 Rubber Tired Dozers (357 hp) operating at a 0.59 load factor for 1 hours per day 2 Tractors/Loaders/Backhoes (108 hp) operating at a 0.55 load factor for 6 hours per day Phase: Fine Grading 1211/2009 - 12131/2009 - Default Fine Site Grading/Excavation Description Total Acres Disturbed: 1.62 Maximum Dally Acreage Disturbed: 0.4 Fugitive Dust Level of Detail: Default 10 Ibs per acre-day On Road Truck Travel (VMT): 0 Off-Road Equipment: 1 Graders (174 hp) operating at a 0.61 load factor for 6 hours per day 1 Rubber Tired Dozers (357 hp) operating at a 0.59 load factor for 6 hours per day 1 Tractors /Loaders/Backhoes (108 hp) operating at a 0.55 load factor for 7 hours per day 1 Water Trucks (189 hp) operating at a 0.5 load factor for 8 hours per day Phase: Paving 10/112010 - 10/31/2010 - Default Paving Description Acres to be Paved: 0.4 Off -Road Equipment: 4 Cement and Mortar Mixers (10 hp) operating at a 0.56 load factor for 6 hours per day 1 Pavers (100 hp) operating at a 0.62 load factor for 7 hours per day 1 Rollers (95 hp) operating at a 0.56 load factor for 7 hours per day 1 Tractors/Loaders/Backhoes (108 hp) operating at a 0.55 load factor for 7 hours per day Phase: Building Construction 1/1/2010 - 9/30)2010 - Default Building Construction Description Off -Road Equipment: 1 Cranes (399 hp) operating at a 0.43 load factor for 4 hours per day 2 Forklifts (145 hp) operating at a 0.3 load factor for 6 hours per day 1 Tractors/LoadersBackhoes (108 hp) operating at a 0.55 load facia for 8 hours per day Phase: Architectural Coating 7/112010 - 10/31/2010 - Default Architectural Coating Description CY` Page: 6 7/10/2008 1:44:33 PM Rule: Residential Interior Coatings begins 1/1/2005 ends 6/30 /2008 specifies a VOC of 100 Rule: Residential Interior Coatings begins 7/112008 ends 12/31/2040 specifies a VOC of 50 Rule: Residential Exterior Coatings begins 1/1/2005 ends 6130/2008 specifies a VOC of 250 Rule: Residential Exterior Coatings begins 7/1/2008 ends 12/31/2040 specifies a VOC of 100 Rule: Nonresidential Interior Coatings begins 1/111005 ends 12/31/2040 specifies a VOC of 250 Rule: Nonresidential Exterior Coatings begins 1/1/2005 ends 12/3111040 specifies a VOC of 250 Construction Mitigated detail Report: CONSTRUCTION EMISSION ESTIMATES Summer Pounds Per Day, Mitigated Time Slice 111111009- 11/3012009 Active Days: 21 Demolition 11/01/2009- 1213112009 Fugitive Dust Demo Off Road Diesel Demo On Road Diesel Demo Worker Trips ROG Q M $QZ PM10 Dust PM10 Exhaust PM10 PM25Dusi PM25 Exhaust PM2.5 CCO22 1.49 10.21 7.02 0.01 2.92 0.23 3.15 0.61 0.21 0.82 1.231.67 1.49 10.21 7.02 0.01 2.92 0.23 3.15 0.61 0.21 0.82 1,231.67 0.00 0.00 0.00 0.00 2.90 0.00 2.90 0.60 0.00 0.60 0.00 1.23 6.93 4.76 0.00 0.00 0.10 0.10 0.00 0.09 0.09 700.30 0.23 3.22 1.18 0.00 0.01 0.13 0.14 0.00 0.12 0.12 406.89 0.03 0.06 1.06 0.00 0.01 0.00 0.01 0.00 0.00 0.00 124.48 Page: 7 7110120081:44:33 PM Time Slice 1211!2009- 1213112009 Active Days: 23 Demolition 11/01/2009- 12131l2009 Fugitive Dust Demo Off Road Diesel Demo On Road Diesel Demo Worker Trips Fine Grading 12/01/2009- 12131/2009 Fine Grading Dust Fine Grading Off Road Diesel Fine Grading On Road Diesel Fine Grading Worker Trips Time Slice 1/112010-6130/2010 Active Days: 129 Building 01/01/2010 -09130/2010 Building Off Road Diesel Building Vendor Trips Building Worker Trips Cr 4.71 32.76 21-05 401 3.34 4-41 an 0.69 0.40 1.09 3.603.47 1.49 10.21 7.02 0.01 2.92 0.23 3.15 0.61 0.21 0.82 1,231.67 0.00 0.00 0.00 0.00 2.90 0.00 2.90 0.60 0.00 0.60 0.00 1.23 6.93 4.78 0.00 0.00 0.10 0.10 0.00 0.09 0.09 700.30 0.23 3.22 1.18 0.00 0.01 0.13 0.14 0.00 0.12 0.12 406.89 0.03 0.06 1.06 0.00 0.01 0.00 0.01 0.00 0.00 0.00 124.48 3.21 22.55 14.03 0.00 0.38 0.20 0.58 0.08 0.19 0.27 2,371.80 0.00 0.00 0.00 0.00 0.37 0.00 0.37 0.08 0.00 0.08 0.00 3.18 22.49 12.98 0.00 0.00 0.20 0.20 0.00 0.18 0.18 2,247.32 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.03 0.06 1.06 0.00 0.01 0.00 0.01 0.00 0.00 0.00 124.48 1.31 8.29 7.33 0.00 0.02 0.11 0.12 0.01 0.10 010 1,245.96 1.31 8.29 7.33 0.00 0.02 .0.11 0.12 0.01 0.10 0.10 1,245.96 1.21 7.79 4.81 0.00 0.00 0.09 0.09 0.00 0.08 0.08 893.39 0.03 0.37 0.29 0.00 0.00 0.02 0.02 0.00 0.01 0.01 72.15 0.07 0.13 2.22 0.00 0.01 0.01 0.02 0.00 0.01 0.01 280.43 Page: 8 7/10/2008 1:44:33 PM Time Slice 7/112010- 9130/2010 Active Days: 66 Building 01/01/2010- 09/3012010 Building Off Road Diesel Building Vendor Trips Building Worker Trips Coating 07/01/2010 - 10131/2010 Architectural Coating Coating Worker Trips rime Slice 10/1/2010 - 10/2912010 Active Days: 21 Asphalt 10/01/2010- 10/31/2010 Paving Off -Gas Paving Off Road Diesel Paving On Road Diesel Paving Worker Trips Coating 07/01/2010- 10/31/2010 Architectural Coating Coating Worker Trips 9.11 8.30 7.43 000 Q92 0.11 0.13 491 0.10 0.11 1,25855 1.31 8.29 7.33 0.00 0.02 0.11 0.12 0.01 0.10 0.10 1,245.96 1.21 7.79 4.81 0.00 0.00 0.09 0.09 0.00 0.08 0.08 893.39 0.03 0.37 0.29 0.00 0.00 0.02 0.02 0.00 0.01 0.01 72.15 0.07 0.13 2.22 0.00 0.01 0.01 0.02 0.00 0.01 0.01 280.43 7.81 0.01 0.10 0.00 0.00 0.00 0.00 0.00 0.00 0.00 12.59 7.80 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.10 0.00 0.00 0.00 0.00 0.00 0.00 0.00 12.59 9.87 10.42 ¢_$Q 0.00 0.01 QA7 Q1$ 0.00 12.15 4.1.5 1,238.57 2.07 10.42 8.78 0.00 0.01 0.17 0.18 0.00 0.15 0.16 1,225.98 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 1.95 10.11 6.98 0.00 0.00 0.15 0.15 0.00 0.14 0.14 979.23 0.02 0.21 0.08 0.00 0.00 0.01 0.01 0.00 0.01 0.01 28.98 0.05 0.10 1.72 0.00 0.01 0.01 0.02 0.00 0.00 0.01 217.78 7.81 0.01 0.10 0.00 0.00 0.00 0.00 0.00 0.00 0.00 12.59 7.80 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.10 0.00 0.60 0.00 0.00 0.00 0.00 0.00 12.59 Construction Related Mitioation Measures The following mitigation measures apply to Phase: Demolition 11/1/2009 - 12/31/2009 - Default Demolition Description For Concrete /industrial Saws, the Diesel Particulate Filter (DPF) 1st Tier mitigation reduces emissions by: PM10: 85% PM25: 85% For Concrete/industrial Saws, the Diesel Oxidation Catalyst 15% mitigation reduces emissions by: NOX: 15% For Rubber Tired Dozers, the Diesel Particulate Filter (DPF) 1st Tier mitigation reduces emissions by: �fi Page: 9 7/10/2008 1:44:33 PM PM10: 85% PM25: 85% For Rubber Tired Dozers, the Diesel Oxidation Catalyst 15% mitigation reduces emissions by: NOX: 15% For Tractors /Loaders/Backhoes, the Diesel Particulate Fitter (DPF)1at Tier mitigation reduces emissions by: PM10' 85% PM25: 85% For Tractors /Loaders/Backhoes, the Diesel Oxidation Catalyst 15% mitigation reduces emissions by: NOX: 15% The following mitigation measures apply to Phase: Fine Grading 12/1/2009 - 12/31/2009 - Default Fine Site Grading /Excavation Description For Soil Stablizing Measures, the Apply soil stabilizers to inactive areas mitigation reduces emissions by: PM10: 84% PM25: 84% For Soil Stablizing Measures, the Replace ground cover in disturbed areas quickly mitigation reduces emissions by: PM10: 5% PM25: 5% For Soil Stablizing Measures, the Water exposed surfaces 3x daily watering mitigation reduces emissions by: PM10: 61 %PM25:61% For Unpaved Roads Measures, the Reduce speed on unpaved roads to less than 15 mph mitigation reduces emissions by: PM10: 44% PM25: 44% For Unpaved Roads Measures, the Manage haul road dust 3x daily watering mitigation reduces emissions by: PM10: 61 % PM25: 61 % For Graders, the Diesel Particulate Filter (DPF) tat Tier mitigation reduces emissions by: PM10, 85% PM25: 85% For Graders, the Diesel Oxidation Catalyst 15% mitigation reduces emissions by: NOX: 15% For Rubber Tired Dozers, the Diesel Particulate Filter (DPF) 1st Tier mitigation reduces emissions by: PM10: 85% PM25: 85% For Rubber Tired Dozers, the Diesel Oxidation Catalyst 15% mitigation reduces emissions by: NOX: 15% For Tractors/LoadersBackhoes, the Diesel Particulate Filter (DPF) 1st Tier mitigation reduces emissions by: PM10: 85% PM25: 85% For Tractors /Loaders/Backhoes, the Diesel Oxidation Catalyst 15% mitigation reduces emissions by: NOX: 15% �x Page: 10 7/18!28881:44:33 PM For Water Trucks, the Diesel Particulate Filter (DPF) 1st Tier mitigation reduces emissions by: PM10: 85% PM25: 85% For Water Trucks, the Diesel Oxidation Catalyst 15% mitigation reduces emissions by: NOX: 15% The following mttigation measures apply to Phase: Paving 101112010 - 10131/2010 - Default Paving Description For Cement and Mortar Mixers, the Diesel Particulate Filter (DPF) 1st Tier mitigation reduces emissions by: PM10: 85% PM25: 85% For Cement and Mortar Mixers, the Diesel Oxidation Catalyst 15% mitigation reduces emissions by: NOX: 15% For Pavers, the Diesel Particulate Filter (DPF) 1st Tier mitigation reduces emissions by: PM10: 85% PM25: 85% For Pavers, the Diesel Oxidation Catalyst 15% mitigation reduces emissions by: NOX: 15% For Rollers, the Diesel Particulate Fitter (DPF) 1st Tier mitigation reduces emissions by: PM10: 85% PM25: 85% For Rollers, the Diesel Oxidation Catalyst 15% mitigation reduces emissions by: NOX: 15% For Tractors /Loadem/Backhoes, the Diesel Particulate Filter (DPF) 1st Tier mitigation reduces emissions by: PM10: 85% PM25: 85% For Trectors /Loaders /Backhoes, the Diesel Oxidation Catalyst 15% mitigation reduces emissions by: NOX: 15% The following mitigation measures apply to Phase: Building Construction 1/112010 - 9130/2010 - Default Building Construction Description For Cranes, the Diesel Particulate Filter (DPF) 1st Tier mitigation reduces emissions by: PM10: 85% PM25: 850/. For Crene% the Diesel Oxidation Catalyst 15% mitigation reduces emissions by: NOX: 15% For Forklifts, the Diesel Particulate Filter (DPF) 1st Tier mitigation reduces emissions by: PM10: 85% PM25: 85% For Forklifts, the Diesel Oxidation Catalyst 15% mitigation reduces emissions by: NOX: 15% a Page: 11 7/10/2008 1:44:33 PM For Tractors /Loaders/Backhoes, the Diesel Particulate Filter (DPF) 1st Tler mitigation reduces emissions by: PM10: 85% PM25: 85% For Tractors /LoaderslBackhoes, the Diesel Oxidation Catalyst 15% mitigation reduces emissions by: NOX: 15% The following mitigation measures apply to Phase: Architectural Coating 7/1/2010 - 10/31/2010 - Default Architectural Coating Description For Residential Architectural Coating Measures, the Residential Exterior: Use Low VOC Coatings mitigation reduces emissions by: ROG: 10% For Residential Architectural Coating Measures, the Residential Interior. Use Low VOC Coatings mitigation reduces emissions by: ROG: 10% For Nonresidential Architectural Coating Measures, the Nonresidential Exterior: Use Low VOC Coatings mitigation reduces emissions by: ROG: 10% For Nonresidential Architectural Coating Measures, the Nonresidential Interior Use Low VOC Coatings mitigation reduces emissions by: ROG: 10% Area Source Unmitigated` Detail Report: AREA SOURCE EMISSION ESTIMATES Summer Pounds Per Day, Unmitigated Source .@QQ NOx S�QZ, PM10 PM2.5 CCO22 Natural Gas 0.02 0.34 0.29 0.00 0.00 0.00 408.44 Hearth -No Summer Emissions Landscape 0.12 0.02 1.55 0.00 0.01 0.01 2.81 Consumer Products. - 0.00 Architectural Coatings 0.21 TOTALS (lbs/dsy, unmitigated) 0.35 ' 0.36 1.84 0.00 0.01 0.01 - ' 411.25 Area Source_Chanaes to Defaults Page: 12 7/10/20081:44:33 PM Operational Unmitigated Detail Report: OPERATIONAL EMISSION ESTIMATES Summer Pounds Per Day, Unmitigated Source ROG NOX Place of worship 2.03 2.51 TOTALS (lbs/day, unmitigated) 2.03 2.51 Operational Settings: Does not include correction for passby trips Does not include double counting adjustment for internal trips Analysis Year: 2010 Temperature (F): 80 Season: Summer Emfac: Version : Emfw2007 V2.3 Nov 12006 Land Use Type Place of worship Vehicle Type Light Auto Light Truck < 3750 lbs Light Truck 3751 -5750 lbs Med Truck 5751 -8500 lbs Lite-Heavy Truck 8501 - 10,000 lbs Lite -Heavy Truck 10,001 - 14,000 lbs CO S02 PM10 PM25 CO2 24.27 0.03 4.33 0.64 2,542.69 24.27 0.03 4.33 0.84 2.542,69 Si mmary of Land Uses Acreage Trip Rate Unit Type 7.92 1000 sq It Vehicle Fleet Mix Percent Type 51.5 7.0 23.8 10.6 1.6 0.5 No. Units Total Trips Total VMT 35.21 278.86 2,512.42 278.86 2,512.42 Non - Catalyst Catalyst Diesel 1.0 98.6 0.4 1.4 95.7 2.9 0.4 99.6 0.0 0.9 99.1 0.0 0.0 81.2 18.8 0.0 60.0 40.0 Page: 13 7110120081:44:33 PM Vehicle Type Med -Heavy Truck 14,001- 33,000 Ibs Heavy -Heavy Truck 33,001- 60,000 Ibs Other Bus Urban Bus Motorcycle School Bus Motor Home Urban Trip Length (miles) Rural Trip Length (miles) Trip speeds (mph) % of Trips - Residential % of Trips - Commercial (by land use) Place of worship 3.0 1.5 95.5 Vehicle Fleet Mix Percent Type Non - Catalyst Catalyst Diesel 0.9 0.0 22.2 77.8 0.2 0.0 0.0 100.0 0.1 0.0 0.0 100.0 0.0 0.0 0.0 0.0 2.9 69.0 31.0 0.0 0.1 0.0 0.0 100.0 0.8 0.0 87.5 12.5 Travel Conditions Residential Commercial Home -Work Home -Shop Home -Other Commute Non -Work Customer 12.7 7.0 9.5 13.3 7.4 8.9 17.6 12.1 14.9 15.4 9.6 12.6 30.0 30.0 30.0 30.0 30.0 30.0 32.9 18.0 49.1 3.0 1.5 95.5 Appendix D Noise Impact Analysis - Giroux and Associates dated July 14, 2008 Noise Analysis Proposed OASIS Senior Center NOISE IMPACT ANALYSIS OASIS SENIOR CENTER CITY OF NEWPORT BEACH, CALIFORNIA Prepared for: Hodge & Associates Attn: Cheryle Hodge 24040 Camino Del Avion #A247 Monarch Beach, California 92629 Date: July 14, 2008 Project No.: P08-037N )A NOISE SETTING Sound is mechanical energy transmitted by pressure waves in a compressible medium such as air. Noise is generally considered to be unwanted sound. Sound is characterized by various parameters that describe the rate of oscillation of sound waves, the distance between successive troughs or crests, the speed of propagation, and the pressure level or energy content of a given sound. In particular, the sound pressure level has become the most common descriptor used to characterize the loudness of an ambient sound level. The decibel (dB) scale is used to quantify sound pressure levels. Although decibels are most commonly associated with sound, 'AB" is a generic descriptor that is equal to ten times the logarithmic ratio of any physical parameter versus some reference quantity. For sound, the reference level is the faintest sound detectable by a young person with good auditory acuity. Since the human ear is not equally sensitive to all sound frequencies within the entire auditory spectrum, human response is factored into sound descriptions by weighting sounds within the range of maximum human sensitivity more heavily in a process called "A- weighting," written as dB(A). Any further reference in this discussion to decibels written as "dB" should be understood to be A- weighted. Time variations in noise exposure are typically expressed in terms of a steady -state energy level equal to the energy content of the time varying period (called LEQ), or alternately, as a statistical description of the sound pressure level that is exceeded over some fraction of a given observation period. Finally, because community receptors are more sensitive to unwanted noise intrusion during the evening and at night, state law requires that, for planning purposes, an artificial dB increment be added to quiet time noise levels in a 24 -hour noise descriptor called the Ldn (day - night) or the Community Noise Equivalent Level (CNEL). The CNEL metric has gradually replaced the Ldn factor, but the two descriptors are essentially identical. CNEL -based standards are generally applied to transportation - related sources because local jurisdictions are pre - empted from exercising direct noise control over vehicles on public streets, aircraft, trains, etc. The City of Newport Beach therefore regulates the traffic noise exposure of the receiving property through land use controls. Noise /land use compatibility standards for various classes of land uses are generally expressed in the Noise Element of the General Plan to insure that noise exposure is considered in any development decisions. The City of Newport Beach has guidelines for noise exposure standards which are shown in Table 1. For uses such as the Senior Center, the City recommends an exterior noise exposure of 65 dB CNEL and interior noise exposure of 45 dB CNEL. For "stationary" noise sources such as a Senior Center, the City does have legal authority to establish noise performance standards designed to not adversely impact adjoining residential uses. These standards are typically articulated in the jurisdictional Municipal Code. These standards recognize the varying noise sensitivity of both transmitting and receiving land uses. The property line noise performance standards are normally structured according to land use and time -of -day. 0- Table 1 City of Newport Beach Interior and Exterior Noise Standards Land Use Category Uses Energy Average CNEL Interiora Exteriors RESIDENTIAL Single Family, Two - Family, Multiple Family 45a 55d 65 Mobile Home - 65e Commercial, Industrial, Institutional Hotel, Motel, Transient Lodging 45 65f Commercial Retail, Bank Restaurant 55 - Office Building, Research and Development, Professional Offices, City Office Building 50 - Amphitheatre, Concert Hall Auditorium, Meeting Hall 45 - Gymnasium (Multipurpose) 50 Sports Club 55 - Manufacturing, Warehousing, Wholesale, Utilities 65 - Movie Theatres 45 - INSTITUTIONAL Hospital, Schools' Classroom 45 65 Church, Library 45 Open Space Parks - 65 alndoor environment excluding: Bathrooms, toilets, closets, corridors. 'Outdoor environment limited lo: • Private yard of single family • Multi- family private patio or balcony which is served by a means of exit from inside • Mobile home park - • Hospital patio • Park's picnic area • School's playground • Hotel and motel recreation area °Noise level requirement with closed windows. Mechanical ventilating system or other means of natural ventilation shall be provided as of Chapter 12. Section 1205 of UBC. 'Noise level requirement with open windows, if they are used to meet natural ventilation requirement . aExtedor noise level should be such that interior noise level will not exceed 45 CNEL. Except those areas around the airport within the 65 CNEL contour. 1' 3 CITY OF NEWPORT BEACH NOISE STANDARDS The Newport Beach Municipal Code (section 10.26.025 Exterior Noise Standards) limits the noise level generated on a property that may cross to a neighboring residential property. The City's noise ordinance limits are stated in terms of a 30- minute limit with allowable deviations from this 50"' percentile standard. This noise level describes the noise level that is exceeded during a certain percentage of the measurement period. For example, the L5o is the level exceeded 50% of the measurement period of thirty minutes in an hour. The larger the deviation, the shorter the allowed duration up to a never -to- exceed 20 dB increase above the 50`h percentile standard. Ordinance limits generally apply to "stationary" sources such as mechanical equipment, or vehicles operating on private property. All stationary equipment at the Oasis Senior Center site must meet the City of Newport Beach Residential Noise Standards at the nearest residential property line, as shown in Table 2. The applicable requirement is a function of the time of day . with a Lso daytime standard of 55 dB and L5o nighttime of 50 dB. The City's Noise Ordinance (section 10.28.040 Construction Activity-Noise Regulations) exempts noise generated by construction activities from the Noise Ordinance standards if construction is restricted to the hours of 7 a.m. and 6:30 p.m. on weekdays and 8 a.m. and 6 p.m. on Saturdays. Construction is not permitted on any national holiday or on any Sunday. The Newport Beach Noise Ordinance also provides limitations on the installation of new HVAC equipment as follows: • New permits for heating, venting and air conditioning (HVAC) equipment in or adjacent to residential areas shall be issued only where installations can be shown by computation, based on the sound rating of the proposed equipment, not to exceed an A- weighted sound pressure level of fifty (50) dBA or not to exceed an A- weighted sound pressure level of fifty -five (55) dBA and be installed with a timing device that will deactivate the equipment during the hours of ten p.m. to seven a.m. 3 Table 2 NEWPORT BEACH NOISE STANDARDS It is unlawful for any person at any location within the incorporated area of the City to create any noise, or to allow the creation of any noise on property owned, leased, occupied or otherwise controlled by such person, which causes the noise level when measured on any other property, to exceed either of the following: 1. The noise standard for the applicable zone for any fifteen- minute period; 2. A maximum instantaneous noise level equal to the value of the noise standard plus twenty (20) dBA for any period of time (measured using A- weighted slow response). Notes: • In the event the ambient noise level exceeds the noise standard, the maximum allowable noise level under said category shall be increased to reflect the maximum ambient noise level. • The Noise Zone III standard shall apply to that portion of residential property falling within one hundred (100) feet of a commercial property, if the intruding noise originates from that commercial property. • If the measurement location is on boundary between two different noise zones, the lower noise level standard applicable to the noise zone shall apply. (Ord. 95 -53 § 1, 1995; Ord. 95 -38 § 11 (part), 1995) )0 Allowable Allowable !Exterior Noise Exterior Noise Level Level j (Equivalent (Equivalent E Noise Level, Noise Level, Leq) Leq) Noise 7 a.m. to 10 10 p.m. to 7 Zone IType of Land Use p.m. I a.m. �I Single -, two -or multi le- 55 dBA 50 dBA I family residential II _ Commercial 65 dBA 60 dBA III (Residential portions of 60 dBA 50 dBA mixed -use properties liv 1Industrial or manufacturi ng 70 dBA 70 dBA It is unlawful for any person at any location within the incorporated area of the City to create any noise, or to allow the creation of any noise on property owned, leased, occupied or otherwise controlled by such person, which causes the noise level when measured on any other property, to exceed either of the following: 1. The noise standard for the applicable zone for any fifteen- minute period; 2. A maximum instantaneous noise level equal to the value of the noise standard plus twenty (20) dBA for any period of time (measured using A- weighted slow response). Notes: • In the event the ambient noise level exceeds the noise standard, the maximum allowable noise level under said category shall be increased to reflect the maximum ambient noise level. • The Noise Zone III standard shall apply to that portion of residential property falling within one hundred (100) feet of a commercial property, if the intruding noise originates from that commercial property. • If the measurement location is on boundary between two different noise zones, the lower noise level standard applicable to the noise zone shall apply. (Ord. 95 -53 § 1, 1995; Ord. 95 -38 § 11 (part), 1995) )0 BASELINE NOISE LEVELS Short term on -site noise measurements were made in order to document existing baseline levels in the project area. These help to serve as a basis for projecting future noise exposure, both from projects upon the surrounding community and from the ambient noise acting upon the proposed project. Noise monitoring was conducted on Friday, June 27, 2008, from 1:15 p.m.- 2:15 p.m., at 5 on -site locations. Measurement locations are shown in Figure 1 and summarized below. Measured Noise Levels (dBA) Site No. Leq Lmax Lmin L10 L33 L50 L90 1 48.4 60.0 37.5 51.5 45.5 44.0 40.0 2 54,9 67.5 44.5 57.5 54.5 52.5 48.0 3 55.3 73.0 44.0 57.0 54.5 53.0 48.5 4 57.4 64.0 47.5 60.5 58.0 56.0 50.5 5 52.0 1 63.0 42.0 54.5 57.0 1 49.5 46.5 Monitoring experience shows that 24 -hour weighted CNEL's can be reasonably well estimated from mid - afternoon noise readings. CNEL's are approximately equal to mid - afternoon Leq plus 3 dB (Caltrans Technical Noise Supplement, 1998). Existing on -site noise levels in the upper 40 to mid -upper 50 dB CNEL range would equate to CNEL's of 50 dB -60 dB. Such levels are well within Newport Beach residential and classroom noise standards of 65 dB CNEL. There are no ambient noise constraints to project development as proposed. POM370 mi Sr. C., Newport Reach $ Figure 1 Noise Monitor Locations MOO 370.. Sr_ Cora. Newport Bast A 1 NOISE IMPACTS NOISE SIGNIFICANCE CRITERIA Noise impacts are considered significant if they result in: a. Exposure of persons to or generation of noise levels in excess of standards established in the local general plan or noise ordinance, or applicable standards of other agencies. b. Exposure of persons to or generation of excessive groundbome vibration or groundbome noise levels. c. A substantial permanent increase in ambient noise levels in the project vicinity above levels existing without the project. d. A substantial temporary or periodic increase in ambient noise levels in the project vicinity above levels existing without the project. SOURCES OF IMPACT Two characteristic noise sources are typically identified with general development such as the Oasis Senior Center. Construction activities, especially heavy equipment, will create short-term noise increases near the project sites. Upon completion, vehicular traffic on streets around the proposed project area may create a higher noise exposure. In already - developed areas, the added land use intensity associated with a single development only increases traffic incrementally on existing roadways. These noise impacts are often masked by the baseline, and likely preclude perception of any substantial noise level increase. The incremental noise impact from an anticipated increase of 279 vehicles per day will be imperceptible within existing traffic noise background. Project activities will entail outdoor activities. Outdoor recreational activities at a senior center are generally very low key. They also represent a continuation of existing activities. No impact analysis was therefore conducted for outdoor recreation. The only operational noise sources that would be of concern would be the HVAC equipment, parking lot activity noise and event noise. The existing hours of Senior Center operation are Monday -Friday 8 a.m. to 5 p.m. and limited hours of 10:30 a.m. to 4:00 p.m. on Sundays. New proposed hours of operation are anticipated to be expanded to 8:00 a.m. to 9:00 p.m. Monday through Thursday, 8:00 a.m. to 5:00 p.m. on Fridays and 10:00 a.m. to 4:00 p.m. on Saturday and Sunday. In addition to the senior programs the center is used by the Recreation Services Division for night classes which most likely will continue. The center is also rented to the public for weddings, parties, homeowners and AA meetings and other special events. The center is available to rent for large events on Friday and Saturday evenings only and for the smaller meetings and events on weekday evenings. P08 437 Oaiw Sr. Cml Ne nBeach 7 1� CONSTRUCTION NOISE IMPACTS Temporary construction noise impacts will vary markedly because the noise strength of construction equipment ranges widely as a fimction of the equipment used and its activity level. Short-term construction noise impacts tend to occur in discrete phases dominated initially by demolition of existing structures and large earth- moving sources, then by foundation and parking lot construction, and finally for finish construction. The demolition and earth- moving sources are the noisiest, with equipment noise typically ranging from 75 to 90 dBA at 50 feet from the source. Figure 2 shows the range of noise emissions for various pieces of construction equipment. Point sources of noise emissions are attenuated by a factor of 6 dB per doubling of distance through geometrical (spherical) spreading of sound waves. The quieter noise sources will drop to a 65 dBA exterior /45 dBA interior noise level by about 200 feet from the source while the loudest may require over 1,000 feet from the source to reduce the 90+ dBA source strength to a generally acceptable 65 dBA exterior exposure level. This estimate assumes a clear line -of -sight from the source to the receiver. Variations in terrain elevation will act as a noise barrier that may interrupt equipment noise propagation. Construction noise impacts are, therefore, somewhat less than that predicted under idealized input conditions According to the City of Newport Beach Municipal Code, permissible hours of construction are 7 a.m. and 6:30 p.m. on weekdays and 8 a.m. and 6 p.m. on Saturdays. Construction is not permitted on any national holiday or on any Sunday. These hours are included as conditions on any project construction permits and these limits will serve to minimize any adverse construction noise impact potential. POMP W6is Sr. Ce W, Newport B.b $ Figure 3 Typical Construction Equipment Noise Generation Levels M437 Weis Sr. a ter, Newport Beach Y ADO CONSTRUCTION ACTIVITY VIBRATION Construction activities generate ground -borne vibration when heavy equipment travels over unpaved surfaces or when it is engaged in soil movement. The effects of ground -borne vibration include discernable movement of building floors, rattling of windows, shaking of items on shelves or hanging on walls, and rumbling sounds. Within the "soft" sedimentary surfaces of much of Southern California, ground vibration is quickly damped out. Because vibration is typically not an issue, very few jurisdictions have adopted vibration significance thresholds. Vibration thresholds have been adopted for major public works construction projects, but these relate mostly to structural protection (cracking foundations or stucco) rather than to human annoyance. Vibration is most commonly expressed in terms of the root mean square (RMS) velocity of a vibrating object. RMS velocities are expressed in units of vibration decibels. The range of vibration decibels (VdB) is as follows: 65 VdB - threshold of human perception 72 VdB - annoyance due to frequent events 80 VdB - annoyance due to infrequent events 100 VdB - minor cosmetic damage To determine potential impacts of the project's construction activities, estimates of vibration levels induced by the construction equipment at various distances are presented below: * (FTA Transit Noise & Vibration Assessment, Chapter 12, Construction, 1995) The on -site construction equipment that will create the maximum potential vibration is a large bulldozer. The stated vibration source level in the FTA Handbook for such equipment is 87 VdB at 25 feet from the source. The closest residences to the site are across Fifth Avenue and are as close as 80 feet from the nearest building fagade. Behind the facility, along Sandcastle Drive, residences are as close as 150 feet to the closest fagade. Homes along Narcissus Avenue are more than 190 feet from any building. Groundbome vibration attenuates quickly with distance. Vibration levels from heavy equipment would be well below the 80 VdB annoyance threshold for infrequent/temporary events at the nearest off -site homes. Vibration levels will not exceed either the potential nuisance threshold or P08-037 0.k S, Cmrcr. N.w.n B.a 10 15` A pproximate Vibration Levels dB Equipment 25 feet 50 feet 100 feet 1000 feet Large Bulldozer 87 81 75 55 Loaded Truck 86 80 74 54 Jackhammer 79 73 67 47 Small Bulldozer 58 52 46 26 Pile Driver 1 93 87 81 61 * (FTA Transit Noise & Vibration Assessment, Chapter 12, Construction, 1995) The on -site construction equipment that will create the maximum potential vibration is a large bulldozer. The stated vibration source level in the FTA Handbook for such equipment is 87 VdB at 25 feet from the source. The closest residences to the site are across Fifth Avenue and are as close as 80 feet from the nearest building fagade. Behind the facility, along Sandcastle Drive, residences are as close as 150 feet to the closest fagade. Homes along Narcissus Avenue are more than 190 feet from any building. Groundbome vibration attenuates quickly with distance. Vibration levels from heavy equipment would be well below the 80 VdB annoyance threshold for infrequent/temporary events at the nearest off -site homes. Vibration levels will not exceed either the potential nuisance threshold or P08-037 0.k S, Cmrcr. N.w.n B.a 10 15` the building damage threshold. Construction activity vibration impacts are judged as less -than- significant. ON -SITE NOISE GENERATION HVAC Roof -top mechanical equipment noise was presumed to be typical of comparable HVAC sources. Commercial air conditioners ( "package units ") are typically rated at around 50 dB at 50 feet from the equipment, when running at full power. The equipment cycle frequently depends upon ambient temperature. The equipment cycles more often during warm days than cool evenings. With less cycling, the noise ordinance standards would be more likely be affected. The roof edge and screening or parapet provides a natural noise barrier that reduces noise levels from rooftop HVAC units by 8 dB or more. Any roof -top mechanical equipment would be required to meet an A- weighted sound pressure level of fifty (50) dBA or not exceed an A- weighted sound pressure level of fifty -five (55) dBA and be installed with a timing device that will deactivate the equipment during the hours of ten p.m. to seven a.m. With the exception of special events, the center will be closed at 9:00 p.m. Parkins Lot Activity The main parking area is located on the eastern side of the property and the primary vehicular entry is from Narcissus Avenue. Parking is provided for 99 cars. There is an overflow parking lot shared with Grant Howald Park located to the west of the center across Marguerite Avenue. Parking lot activities will be sporadic but with a morning and evening peak hour volume of 58 inbound and outbound vehicles. Center users can park either at the facility or across Marguerite Avenue, such that parking lot noise will be spread over several areas. Parking lot activities will be audible from time to time but are generally not perceived as being loud. Maximum peak hour traffic noise impact level of 46 dB Leq at 50 feet assumes that all vehicles utilize a single access point. While this assumption represents a maximum, it is nevertheless less than the 55 dB L50 City of Newport Beach residential noise standard. With farther distance to adjacent sensitive receivers, their noise exposure will be within City standards by an even larger margin of safety. Center Activity Noise Generation The Senior Center planned for this parcel is not anticipated to generate noise that will affect off -site uses. Classes and activities are primarily indoors. Passive outdoor recreational uses wiil be sited in the interior of the complex allowing the buildings to shield users from street traffic. Such a location will also allow the buildings to shield adjacent sensitive uses from possible recreational noise. The Center is currently utilized for special events and this will continue with no anticipated increase in the number of events. MM37 Wisis ,Cmhr, New nBeach 11 �5a Trash Pick Up It is recommended that in consideration to the adjacent residences that trash pick up be restricted to 7 a.m. to 5 p.m. POMP Oaisk Sr. Cann, Nv p MB.h 12 SUMMARY Short-term construction noise intrusion and vibration impacts will be limited by conditions on construction permits requiring compliance with the City of Newport Beach Noise Ordinance. The allowed hours of constriction are 7 a.m. and 6:30 p.m. on weekdays and 8 a.m. and 6 p.m. on Saturdays. Construction is not permitted on any national holiday or on any Sunday. In addition the following construction practices are recommended: • Stockpiling and staging activities must be located as far as practicable from dwellings. • All mobile equipment shall have properly operating and maintained mufflers. Operation of HVAC equipment must comply with the City of Newport Beach Noise Ordinance standards which require any roof -top mechanical equipment to meet an A- weighted sound pressure level of fifty (50) dBA or not exceed an A- weighted sound pressure level of fifty -five (55) dBA and be installed with a timing device that will deactivate the equipment during the hours of ten p.m. to seven a.m. With the exception of special events, the center will be closed at 9:00 P.M. Maximum on -site traffic and parking during peak hour use will not exceed significance criteria at the nearest residential property line. The hours of operation will be extended to 9:00 p.m. Classes and activities will be indoors. Passive outdoor recreational uses will be within the courtyard and the surrounding buildings will shield adjacent residential uses from possible noise. The Center is currently utilized for special evening events and this will continue with no anticipated increase in the number of events. POS -037 O.Ws Sr. C.w N.".ft Bach 13 A 15 Exhibit No. 5 Comment Letter from Metropolitan Water District 1P MEWo METROPOLITAN WATER DISTRICT OF SOUTHERN CALIFORNIA Exectdive Office November 17, 2008 Ms. Janet Brown City of Newport Beach Planning Department 3300 Newport Boulevard Newport Beach, CA 92663 Dear Ms. Brown: RECEIVED OY PLANNING DEPARTWW CITY OF NEWPORT RFC Notice of Preparation of a Draft Environmental Impact Report for the OASIS Senior Center Project Thank you for submitting the OASIS Senior Center Project for review and comment. The Metropolitan Water District of Southern California (Metropolitan) is comprised of 26 cities and water agencies charged with providing a reliable supply of high quality drinking water to 18 million people in six counties in Southern California. Metropolitan reviews the consistency of local plans, projects, and programs for effects to Metropolitan's projects, programs, activities, and planning efforts. Information provided by these reviews is intended to encourage local agencies and project sponsors to take actions that aid and sustain Metropolitan's water policies and programs, including conservation, recycling, and reclamation. We,reviewed the notice environmental document and determined the proposed Project is not regionally significant to Metropolitan. Metropolitan does not own or operate any facilities or maintain real estate entitlements within the footprint of the proposed Project; however, we are concerned with water conservation and encourage projects to include water conservation measures. Metropolitan supports mitigation measures such as using water efficient fixtures, drought- tolerant landscaping, and reclaimed water to offset any increase in water use associated with the proposed project. Should there be a change in the scope of the Project, we would appreciate the opportunity to review and comment at that time. If we can be of further assistance, please contact Mrs. Rebecca De Leon at (213) 217 -6337. Very truly yours, k e �ne hane . Manager, Environmental Planning Team RDL (Public Folders \EPT20081.etters\22- SEP -08A.doc) 700 N. Alameda Street, Los Angeles, California 90012 • Mailing Address: Box 54153, Los Angeles, California 90054 -0153 • Telephone (213) 217 -0000 5(0 Exhibit No. 6 Mitigation Monitoring Reporting and Program ��i Appendix B Mitigation Monitoring & Reporting Program Mitigation Monitoring and Reporting Program Proposed OASIS Senior Center B- 1 Implementation Method of Timing of, Reaponslble No. Mitigation. Measures Action Verification Verification Person Verification Date Air Quality 1 During constriction activities, the City of Newport Beach (and the Condition of Field Inspections During Planrt ng Dept. construction contractor) shall ensure that the following measures are Approval construction compiled with to reduce short -term ( oonstructon) air quality impacts activities associated with the project: a) controlling fugitive dust by regular watering, covering all stock plies with tarps, applying soil stabilizers to inactive areas, preparing a high wind dust control plan and implementing plan elements and terminating soil disturbance when winds exceed 25 mph, stabilizing previously disturbed areas If subsequent construction is delayed, and replacing ground cover in disturbed areas as soon as feasible to meet South Coast Air Quality Management District (SCAQMD) Rule 403 (Fugitive Dust); b) maintaining equipment engines in proper tune, limiting allowable idling to 5 minutes for trucks and heavy equipment, requiring low - NOx tune -ups for off -road equipment, and utilizing diesel particulate filters on heavy equipment where feasible ; and c) phasing and scheduling construction activities to minimize project - related emissions. 2 During construction activities, the City of Newport Beach (and the Condition of Field Inspections During construction contractor) shall ensure that the project will comply with Approval construction SCAQMD Rule 402 (Nuisance), to reduce odors from construction activities activities. Use tow VOC paints, coatings, sealants and adhesives, and high pressure low volume sprayers for architectural coaling applications. 3 Contractor shall obtain a haul route permit from the City Public Works Condition of Plan Check Prior to the start of Public Works Department. Approval I construction Dept Mitigation Monitoring and Reporting Program Proposed OASIS Senior Center B- 1 Mitigation Monitoring and Reporting Program B- 2 Proposed OASIS Senior Center Im plementation Method of Timing of Responsible No. Mkigetlon to sums Action Verification Verification Person Vergleatlon Date CuRural Resources 4 A qualified archeologist shall be retained to observe grading activities Condition of Plan Check Prior to the Planning Dept. and conduct savage excavation of ardtaotogtcat resources as Approval issuance of a necessary. The geologist shall be present at the pre- grading grading permit conference, shag establish procedures for archeological resources surveillance, and shall establish, in cooperation with the City, procedures for temporarily hating or redirecting work to permit the samping, identification and evaluation of the artifacts as appropriate. If additional or unexpected archeological features are discovered, the archeologist shag report such findings to the City Planning Department. If the archeological resources are found to be significant, the archeological observer shall determine appropriate actions, in cooperation with the City, for exploration andlor salvage. These actions, as wag as final mitigation and disposition of the resources, shall be subject to the approval of the Planning Director. 5 In accordance with the Pubfk. Resources Code §5097.94, i human Condition of Field Inspection as During grading Public Works Dept. remains are found, the Orange County Coroner must be notified within Approval necessary activities 24 hours of the discovery. If the Coroner determines that the remains are not recent, the Coroner will notify the Native American Heritage Commission in Sacramento to determine the most likely descendent for the area. The designated Native American representative then ' determines in consultation with the City the disposition of the human remains. Geology & soils 6 During construction activities, the City of Newport Beach (and the Condition of Field Inspections During construction Public Works Dept. construction contractor) shag ensure that the project incorporates Approval activities recommendations presented in the Geology Report dated Aprll 18, 2008, and the Geotechnical Letter dated June 3, 2008, prepared by Leighton Consulting, Inc. for the retaining wag on the eastern property boundary. Mitigation Monitoring and Reporting Program B- 2 Proposed OASIS Senior Center Implementation Method of Timing of Responsible No. Mitigation Measures Action VeriRcatlon Verffleatlon Person Veritleation Date Hazards 8 Hazardous Materials 7 In the event that hazardous materials are discovered during the grading Condition of Field Inspections During grading & Public Works Dept. or demolition activities, the City of Newport Beach (and Construction Approval demolition Manager) shag provide evidence that ensures that the identified activities hazardous waste and/or hazardous materials are handled and disposed of in the manner specified by the State of California Hazardous Substances Control Law (Health and Safety Code Division 20, Chapter 6.5), standards established by the California Department of Health Services and Office of Statewide Planning and Development, and according to the requirements of the California Administrative Code, Tide 30. B Prior to the issuance of any building permits for new construction, the City of Newport Beach (and Construction Manager) shall submit design Condition of Approval Plan Check Prior to issuance of Planning Dept. plans to the City's Planning Department for review and approval to any budding permits ensure that identified hazardous waste and /or hazardous materials are stored, handled and disposed of In compliance with state and federal guidelines, and as directed by the City's Planning Department. 9 The City of Newport Beach shad ensure that grading and building plans include the following measures and that the measures be followed Condition of Plan Check Prior to start of Public Works Dept shall by the construction contractor and crew: Approval construction 1, The storage of hazardous materials, chemicals, fuels, and oils and fueling of construction equipment shag be a minimum of 45 meters (150 feet) from arty drainage, water supply, or other water feature. 2. Hazardous materials stored onsite shall be stored in a neat, orderly manner in the appropriate containers and, K possible, under a roof or other enclosure. 3. Whenever possible, all of a product shall be used up before disposal of he container. 4. If surplus product must be disposed of, methods for disposal recommended by the manufacturer or the City and the state shall be followed. 5. Spills shall be contained and cleaned up immediately after discovery. Manufacturer's methods for gill cleanup of a material shag be followed as described on the Material Safety Data Sheets (MSDS) for each product Mitigation Monitoring and Reporting Program B- 3 Proposed OASIS Senior Center Mitigation Monitoring and Reporting Program B• 4 Proposed OASIS Senior Center 1 . 5 Implementation Method of Timing of Responsible No. Action Verification Verification Person Verification Gate Hydrology & Water Quality 10 Prior to the commencement of any grading activities, a Water Quality Condition of Plan Check Prior to issuance of Public Works Dept. Management Plan (WQMP) will be prepared. The WQMP shall Identify Approval a grading permit Best Management Practices (BMPs) that will be utilized on-site to control and duringlafter pollution runoff. The City shag comply with and Implement all the project con - applicable requiremenio of the NPDES permit. struclion. 11 Prior to the commencement of grading activities, a Notice of Intent (NOt) Condition of Plan Chad Prior to the start of Public Works Dept, will be filed with the State Water Quality Control Board. Approval grading activities NOISE 12 During constructions activities (including site preparation, etc.) tha Condition of field Inspections During Public Works project will comply with the applicable requirements of the City's Noise 1 Approval as necessary construction Dept. Ordinance. activities Transportation/Traffic 13 The City of Newport Beach shall control parking at the new OASIS Condition of Plan Check During operations Public Works Dept Senior Center facility through the scheduling of classes and events at 1 Approval of the new senior the center so as to maximize and balance usage of the parking facilities. center. Utilities and Service Systems 14 Prior to the issuance of grading or building permits, the City of Newport Condition of Plan Check Prior to start of Public Works Beach (and Construction Manager) shall coordinate with utility and Approval grading activities Dept. service organizations regarding any construction activities to ensure existing faciitdes are protected and any necessary expansion or relocation of facilities are planned and scheduled in consultation with the appropriate public agencies. Mitigation Monitoring and Reporting Program B• 4 Proposed OASIS Senior Center 1 . 5