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CITY_OF_IRVINE_MASTER_ENVIRONMENTAL_ASSESSMENT
• City of Irvine MASTER ENVIRONMENTAL' ASSESSMENT. .10 Executive Summary ,6 • 1�1 0 Executive Summary Prepared For: City of Irvine Community Development Department Contact: Mr. Dain Anderson (714) 660-3836 Prepared By: Community Planning Services, Inc. E1 Toro, California Contact: Mr. Tom Miner (714) 380-8361 April 1986 0 CONTENTS INTRODUCTION ....:............................... 1 SYSTEM DEVELOPMENT 1 USING THE MEA UNDER PHASE I ......................... 5 • APPLICATIONS AND BENEFITS .......................... 6 PHASE I DOCUMENTATION ............................. 8 PHASEII .......................................... 9 0 • Executive Summary Introduction The Irvine Master Environmental Assessment (MEA) is an environmental assessment and mitigation system. The primary objective of the MEA is to assist the City of Irvine in evaluating the environmental consequences of development proposals. It achieves this objective by: o Providing a central source of environmental resource and constraint information o Identifying potential environmental effects of development proposals on these resources and constraints o Proposing mitigation measures to reduce or avoid these effects The Irvine MEA encompasses the city's present corporate limits, as well as its adopted sphere of influence. System Development Development of the MEA system is planned in two phases. Phase I entailed preparation of a manual assessment system, while Phase H is planned to provide computer automation of the system. Development of Phase I involved completion of nine tasks. These tasks, and their relationship to one another, are illustrated in the flow diagram found as Exhibit A. Each task is discussed separately below. r� u EXHIBIT A MEA DEVELOPMENT PROCESS PHASE I MODEL CONSTRAINTS PREPAREIMPACT MODEL ACQUIRE AND EVALUATE EXISTING DATA IDEFINE SYSTEM COMPONENTS COMPLETE SUPPLEMENTAL STUDIES DEVELOP CODING SYSTEM PREPARE MAPS FORMULATE MITIGATION MEASURES INTREGRATE SYSTEM COMPONENTS MANUAL, MAP ATLAS AND TECHNICAL REPORTS PUBLIC REVIEW MEA PHASE 11 Y Executive Summary Page 3 Irvine MEA i • Task 1- Acquisition and Evaluation of Existing Environmental Data • 0 At the outset of the project, the consultant team acquired and inventoried all relevant environmental resource and constraint data available for Irvine's planning area. Sources consulted included the City of Irvine, County of Orange, The Irvine Company, Irvine Ranch Water District, various special districts, State and Federal agencies, and local organizations, such as the Irvine Historical Society. Information not available locally was acquired by the consultant team. Once assembled, this information was evaluated to identify outdated data, conflicts among sources, and gaps in geographic coverage. Areas where. further additional data were needed, were flagged for supplemental analyses in subsequent tasks. Task Z - System Definition This task focused upon selection of the environmental topics to be include in the MEA, and how the information would be classified within each topic. The following subjects were selected for inclusion in phase I. Geologic Hazards Flood/Dam Inundation Hazards Fire Hazards Agricultural Capability Water Resources Biotic Resources Sand and Gravel Resources Historical Resources Archaeological Resources Paleontological Resources Aircraft Noise and Crash Hazards Roadway and'Railroad Noise Special Districts Once the topics were selected, an explicit data classification system was developed. This classification system was used to organize the environmental information. This system guided later activities, including the mapping effort. To ensure broad based input into the classification process, potential users were contacted to identify their specific needs. Task 3 - Supplemental Studies Preparation The consultant team completed supplemental technical studies where earlier tasks had determined existing environmental information was inadequate, and the information was deemed critical in the development of the MEA. Three separate studies were completed addressing biotic, archaeologic, and paleontologic resources. The scope of each study was tailored to the specific data requirements of the MEA. Executive summary Page 4 Irvine MEA Task 4 - Data and Constraint Map Preparation The data collected in the earlier phases of the study were mapped during this task according to the -classification system previously developed. The product of this effort was a uniform set of twenty four environmental data and constraint maps, with minimum mapping resolution of 5 acres. Task 5 - Impact Model Development The purpose of developing these models was to provide a means by which to relate potential environmental impacts of a project to the appropriate mitigation measures. These models take into consideration the following factors: land use intensity of a development proposal, the environmental resource affected by the project, and the project application type, e.g: general plan, zoning, etc. Task 6 - Mitigation Measures Preparation The consultant team formulated mitigation measures for each of the environmental constraint topics. This task was completed concurrently with the development of the impact models so that as potential impacts were identified, measures were developed to address the identified impacts. 'The actual mitigation measures were formulated based upon a comprehensive inventory of existing City policies and regulations, a review of state and federal laws, appropriate technical literature, recognized environmental criteria, and interviews with individuals from other public agencies and environmental planning firms. For reference purposes, the source of each mitigation measure was cited with the measure itself. Task 7 - System Components Integration The MEA components developed in the preceding tasks were integrated during this effort to form a coherent assessment system which could be used in a manual format until system automation was completed. Task 8 - System Documentation This task included preparation and publication of the system documentation and user's guide information. As part of this task, the consultant team also conducted two training sessions for city staff in the use of the MEA. 0 Executive Summary Irvine MEA Task 9 - Public Review Process Page S The final task of phase I is intended to provide the public, and other agencies an opportunity to review and continent on the MEA. Revisions to the documents will be made based upon the comments received. Using the MEA Under Phase I The assessment system is comprised of five distinct, but related .components, each of which is needed to use the system under phase I. Each of these components is discussed below. Constraint and Data Maps Constraint maps provide environmental resource and constraint information for the study area. Thirteen constraint maps addressing the following topics are included: Geologic Hazards Flood/Dam Inundation Hazards Fire Hazards Agricultural Capability Water Resources Biotic Resources Sand and Gravel Resources Historical Resources Archaeological Resources Paleontological Resources Aircraft Noise and Crash Hazards Roadway and Railroad Noise Special Districts Data maps provide additional baseline environmental information. The following data maps are included: Landform Soils Environmental Documents Index Archaeological Survey Index Irvine Traffic Analysis Zones Irvine Ranch Water District Token Zones The Land Use Intensity Table Slope Zones Agricultural Preserves Vegetation Statistical Areas/Residential Phasing Census Areas The .Land Use Intensity Table is used to convert various land uses into intensity categories. Five intensity categories are defined: No Impact, Low, Medium, High, and Special. Executive Summary Page 6 Irvine MEA i Impact Models Impact models are provided for each of the thirteen constraint map topics. These models are used to identify specific mitigation measures based upon a site's environmental constraints, land use intensity, and the level of review. Mitigation Measures Mitigation measures are intended to assist the City in reducing or avoiding potential adverse environmental effects associated with development proposals. Each measure has been prepared so that it may be implemented directly as a condition of project approval. Applications and Benefits As an analytical tool, the MEA is expected to serve a wide range of users including members of the city council, city commissions, residents, developers, and the primary user. city staff. Exhibit B identifies these user groups, how each might apply the MEA, and the anticiJO pated benefits. Several of these benefits will be enhanced through system automation. Application of the MEA by each user group is discussed further below. City Council and Commissions The primary use of the MEA by members of the City Council and Commissions will be in association with their consideration of development proposals, and corresponding environmental documents. Through reference to the User's Guide and Map Atlas, the MEA can serve as the source of current environmental information, and a means of confirming compliance with the city's adopted environmental objectives and policies. Since the MEA provides a compendium of adopted environmental policies, it also establishes a reference point from which members of the Council and Commissions can monitor and reevaluate the continued appropriateness of these policies. City Staff At the staff level, the MEA will be used in association with 1) initial study analysis, 2) preparation of negative declarations and environmental impact reports, 3) formulation of project recommendations and conditions of approval, 4) - review of other agency's environmental documents, and 5) preparation of various planning studies. Each of these I 0 EXHIBIT B MEA APPLICATIONS AND BENEFITS APPLICATIONS BY USER CouncillCommissions City Staff Residents Developers o During consideration of project proposals and associated environmental documents o During environmental policy consideration • o During initial study analysis o During preparation of negative declarations and environmental impact reports. o As input during preparation of community plans o In evaluating other agency's projects and environmental documents o In reviewing development proposals, and associated environmental documents BENEFITS BY USER o During project planning CouncillCommissions City Staff Residents Developers o Promotes uniform policy guidance on environmental issues o Facilitates attainment of community goals and objectives o Enhances knowledge of the area's environmental re- sources and constraints o Reduces time needed to evaluate a project's effects and prepare mitigation measures o Enhances knowledge of the area's resources and constraints o Promotes increased understanding of the city's environmental review process and policies o Promotes evaluation of o Helps protect quality of cumulative effects life o Fosters consistency in environmental evaluation, and mitigation .strategies o Enhances coordination among city of departments and other agencies o Reduces cost of environmental review for public projects o Promotes understanding of the city's resources and en- vironmental policy requirements o Expedites the project review process by focusing on project specific issues In Executive Summary Irvine MEA Page 8 applications is discussed further below. The staff of the Environmental Services Division will have primary responsibility for the majority of these activities. Specific procedures to implement the MEA at the staff level will be established by the Director of Community Development. Residents Irvine residents with an interest in a particular development proposal will now have a central source of environmental resource information which they can refer to in considering the environmental merits of a development proposal. Copies of the Phase I User's Guide and Map Atlas will be available 'f-or reference at the Irvine City Hall, and public library branches. Copies are also available at the Department of Community Development for purchase by residents. Developers The primary use of the MEA by developers will be during a project's planning and design stages. Because the MEA reflects adopted environmental policy, it is expected that project applicants will consult the MEA in the same manner that they would consider other important planning documents, such as the city's General Plan or Zoning Ordinance. The MEA can play an important role in shaping a project's design before it reaches the point of formal submittal to the city. Phase I Documentation The following documents comprise Phase I of the MEA. User's Guide - The User's Guide presents an overview of the MEA, explains how to use the system, and, with the exception of the MEA maps, includes the elements needed to use the system. Map Atlas - The Map Atlas includes the MEA constraint and data maps and associated legend information. Twenty four maps provide environmental resource and constraint information for the study area. The User's Guide, in combination with the Map Atlas, provide the components needed to use the MEA under phase I. �J i Executive Summary Irvine MEA Page 9 Background Report - This document presents a detailed discussion of the development and implementation of the MEA, and its components. It also includes information to assist the city in maintaining and updating the system. Biotic Resources Element - This document provides a thorough analysis -of the study area's biotic resources, and includes a proposed biotic resource mitigation program. Archaeological Resources Element - The Archaeological Resources Element documents the methodology and findings of a comprehensive archaeological survey covering 4,500 acres of the study area. Paleontological Resources Element - This document discusses the paleontologic resources within the MEA study area, their sensitivity, and development of the resource sensitivity map. Phase II The primary objective of Phase H is to improve the efficiency and ease of use of the MEA • system. This is to be accomplished through computer automation, which is planned following full implementation of Phase I. As currently envisioned, the automated system would integrate the environmental constraint and data maps, impact models, and mitigation measures in a common graphics/text data base designed to serve the primary system users. Through the automated system a user could enter a project's location and general characteristics into the computer terminal, and have the program search through the appropriate environmental categories and then list, or print, the applicable mitigation measures. As an option, the user might also have the computer print portions of individual data or constraint maps, or prepare composite constraint maps covering the, project site, or the entire study area. As the MEA demonstrates its usefulness, ways to further enhance the system will likely be suggested. These might include additional analysis of existing MEA topics, the inclusion of new environmental issues, or system expansion to encompass land use and planning topics. These suggestions will be evaluated during future updates of the system. E User's Guide • USER'S GUIDE . s Prepared For: City of Irvine Community- Development Department . Contact: Mr. Dain Anderson (714) 660-3836 Prepared By: Community Planning Services, Inc. El Toro, California Contact: Mr. Tom Miner (714) 380-8361 February 1986 • • CONTENTS I INTRODUCTION I SYSTEM COMPONENTS USING THE MEA IV LAND USE INTENSITY TABLE V IMPACT MODELS AND MITIGATION MEASURES VI MEA WORKSHEETS i • i 0 I INTRODUCTION The Irvine Master Environmental Assessment (MEA) is an environmental assessment and mitigation system. The area encompassed by the MEA includes the City's present corporate limits, as well as its sphere of influence (Figure 1). The primary objective of the MEA -is to assist city staff in their evaluation of the environmental consequences of development proposals. It accomplishes this by: o Providing a source of environmental resource and constraint information- 0 Identifying potential environmental effects, of proposed projects on these resources and constraints o Proposing mitigation measures keyed to reduce or avoid these effects The City of Irvine has programed development of the MEA system in two phases. Phase I includes the preparation of baseline environmental data, impact models, and -mitigation measures, and is represented by this User's Guide, and other works. Phase II- will automate the. information developed under phase I, and will begin following it's implementation. ,Primga System Documents User's Guide The User's Guide -presents an overview of the MEA, explains how to use the system, and includes an -example -application. The User's Guide, in combination with the Map Atlas, -provide the basic components needed to use the MEA system under phase I. - 0 i • Introduction 0 Map Atlas Page 3 The Map Atlas includes the MEA maps and legend information. Twenty four maps provide environmental resource and constraint information for the study area. Each map is reproduced in the atlas at a scale of 1" = 60002 Technical Supplements Four technical supplements provide additional detail and -analysis regarding specific facets of the MEA. These supplements are not necessary ' in order to use the MEA, but, each contains additional information which may be of interest to the frequent user. These documents are described below, and are on file and available for review at the Department of Community Development, Environmental Services Division. Background Report - Technical Supplement # 1 This document presents a detailed discussion of the development and implementation of the MEA, and its components.. It also includes information to assist the city in maintaining and updating the system. Biotic Resources Element - Technical Supplement. # 2 This document provides a thorough analysis of the ,study area's biotic resources, and includes a proposed biotic resource mitigation program. Archaeological Resources Element - Technical Supplement # 3 The Archaeological Resources Element documents the methodology and findings of a comprehensive archaeological survey of 4,500 acres within the study area. Paleontological Resources Element - Technical Supplement # 4 This. document discusses -the paleontologic resources within the study area, their sensitivity, and development of a paleontological sensitivity area map. Other Documents In addition to the documentation discussed above, the city's cultural. resource records have been updated to include all archaeological and paleontological survey -and site excavation reports available for the study area. These reports have been indexed by geographic -coverage, and have been placed on file with the Department of Community Development, Environmental Services Division. a, • SYSTEM,COMPONENTS - This section introduces the basic system components needed to- use- the ME system under Phase I. Each of .these components, and -the documents in which they are located, is given below: 0 Acetate Overlay (Map Atlas) o Constraint and Data Maps (Map Atlas) o Land Use Intensity Table (Section IV of this Guide) 0 Impact Models -(Section. V of this Guide) 0 Mitigation Measures (Section V of this Guide) o USA Worksheet (Section VI. of this Guide) Acetate Overlay An acetate overlay is included with the Map Atlas. This sheet is used to plot a project's location within the study area. It is reproduced at the same scale as the remainder of the NSA maps and includes registration marks in each corner permitting proper alignment with each map. Constraint and Data Maps Environmental constraint and data maps are found in the Map Atlas. Constraint maps provide environmental resource and constraint information for the study area. Thirteen constraint maps addressing the following topics are included: - Geologic Hazards Flood/Dam Inundation Hazards Fire Hazards Agricultural Capability Water Resources Biotic Resources Sand and Gravel Resources Historical Resources Archaeological Resources Paleontological Resources Aircraft Noise and Crash Hazards Roadway and Railroad Noise Special Districts i • System Components Page S Data maps provide additional baseline environmental information. In some cases these data maps were used to model the information portrayed on the environmental constraint maps. The following data maps are included with the Atlas: Landform Soils Environmental Documents Index Archaeological Survey Index Irvine TAP Zones IRWD Token Zones Slope Zones Agricultural Preserves Vegetation Statistical Areas/Residential Phasing Census Areas Each map is assigned an alpha -numeric code, with "D" representing data maps, and "C" representing constraint maps. Environmental information is depicted on each map and assigned a numeric code designed to support the phase II automation process. These codes are interpreted by reference to a legend accompanying each, map. In some cases an "expanded code description" is also provided. Expanded code descriptions provide further interpretation of individual map codes, and are found in the .appendix of the Map Atlas. The Geologic Hazards map (C-1), and associated legend are shown, below. ,[ M ` ° E` ^ A Geologic Hazards C - 1 " MAP -NUMBER: C-1 MAP TITLE: GEOLOGIC -HAZARDS MAP TYPE: CONSTRAINT DATE PREPARED: JULY 12;1985 LAST UPDATE: NONE Seismic Response Areal) -Code InMritation 1 Seismic Response Area'.(SRA) 1 2 Seismic Response Area-(SRA) 2 3 ' Seismic Response Area (SRA) 3 4 Seismic Response Area (SRA). 4 5 Seismic Response -Area (SRA) 5 See Appendix A for expanded code interpretation System Components Page 6. The Land Use Intensity Table The Land Use Intensity Table shown below is found in Section IV of this Guide. It is used to convert various land uses into intensity categories for%use with the MEA impact models discussed next. - Five intensity .categories are defined: No Impact, Low, Medium, High, and Special. The Background Report provides additional information regarding development of this table, and the logic used to group the various land uses within each intensity category. LAND USE IMPACT INTENSITY CATEGORIES(t) No Impact Open Space(2) Wildlife habitat Wildlife Reserve Water Low Rural Density Residential (<0.1 Dwelling UnitslAcre)- Estate Density Residential (0.1 to 1.0 Dwelling UnitslAcre) Medium Low Density Residential (1.0 to <5.0 Dwelling UnitslAcre) Medium Density Residential (5.0 to <IO Dwelling UnitslAcre) High Meduim High DensityResidential (10 to 25 Dwelling UnitslAcre) High Density.Residential (25 to 40 Dwelling UnitslAcre) . Airport Multi-Use(3) Commercial Industrial Landfill Sand and Gravel Operations Instutional Special Open Space(2) General Cementary Agriculture Regional Park Community Park Nature Center Roadway Projects 1 Land use categories adapted from the Irvine General Plan Land Use Element 2 This category has been subdivided due to the wide range of uses included. 3 Mixed or multi use,projects must consider each use separately. System Components • Impact Models Page 7 Impact models are provided for each of the thirteen constraint map topics. These models are used to identify specific mitigation measures based upon a site's environmental constraints,. land use intensity, and the level of review. The impact models are found in Section V of this Guide. The Geologic Hazards model is shown below. IRVINE AEA MAP MISER: C-1 MAP TITLE: GEOLOGIC HAZARDS IMPACT MATRIX Code/ Ladd Use Intensity Category Intrepretatlon LOR1 Low Medium High Special GP CP 1.1 1.1- 1.1 ZC 1.1 1.1 1.1 I-----------------------------------------------.- / -------------------- --------------- -- SRA-1 NP ------------------- TT 1.4 1:4 1.4. --------------------------------- CUP ------------------------------------------------------------------------------------ CON 1.5.1.7 1.5,1..7 1.5,1.7 1.6 GP --------------- - --------------------------------------------------------- CP 1.2 1.2 c_---- 1.2 =---------- -------------------------------- ZC 1.2 ----------------------------------------- 1.2 1.2 2/ ------------------------------------------------------------------------------------ SRA-2 . NF- --- ------------------------------------------------------- 1.4 1.4 1.4 -------------------- ------------ CUP 7---------------------------------------------------- -------------------------------------'---------------------------------------------- CON 1.5,1.7 1.5,1.7 1.5,1.7 1.6 I Level of Review: GP General Plan, CP - Concept Plan, ZC - Zone Change, MP- Master Plan, TT - Tentative Tract/Parcel Map, CUP - Conditional Use Permit, CON ; (Construction Level): Grading Permit, Building Permit, Certificate of Use and Occupancy. 0 System Components Page 8 Mitigation Measures Mitigation measures have been included in the MEA to assist the City in reducing or avoiding potential adverse environmental effects associated with development proposals. Two general types of measures are included: 1) Decision Criteria, and 2) Compliance Notification. Decision criteria include established environmental standards or policies. The following is an example of a decision criteria. All stationary emission sources shall comply with the regulations adopted by the South Coast Air Quality Management District. Compliance notification measures are intended to notify an applicant that the project must meet certain environmental requirements during a subsequent. level of project review. These measures are distinguished .by an introductory phrase which typically begins: "Prior to -- ." The following is an example of a Compliance Notification measure. Prior to the issuance of gzading permits, a soils engineering report conforming to the requirements of the Grading and Excavation Code shall be submitted to and approved by the City Engineer. Each measure has been prepared so that it may be implemented directly as a condition of project approval. • i • System Components Page 9 MEA Worksheet The worksheet shown below is provided to assist the user in working through the system under phase I. Extra copies of the worksheet are found in Section VI of this Guide: Use of the Worksheet is discussed in the following section. Worksheet IRVINE MEA Project Title: Project.No: Level of Review: GP CP ZC .TT MP CUP CON Initial Study No: Lpnd Use Impact intensities: Low Medium High • Speclat (See section Iv) Instructions: 1) List constraint map codes applicable ro project sltutn left hand column. 2) Refer to'Impact Modes -for associated mitigation measures, and list to right hand coltunn 3) Rttain this worksheet with initial study and project f les. Mao No Map Code/Interpretation Mitigation Codes C-1, C-2 C-3 C-4 C-5 C-6 C-7 C-8 C-9 C-10 C-11 C-12 C-13 Completed By: Date' • i r� III USING THE MEA GETTING STARTED To use the MEA system -under phase I, you will need the following: o Basic project characteristics including: o Site location and boundaries o Proposed land use types o This User's -Guide o The MEA Map Atlas o- A pencil or marking pen The following documents are helpful as optional sources of additional technical information, but are not required to use the MEA: o Background- Report - Technical Supplement 1 o Biotic Resources Element -- Technical Supplement 2 o Archaeological Resources Element - Technical Supplement 3 o Paleontological Resources Element - Technical Supplement 4 o Full size Constraint and Data Maps (1" = 2000') Once you have assembled the necessary system components, you can begin to use the features offered by the MEA. These features, and the associated procedures, are presented below. TO IDENTIFY RESOURCES AND CONSTRAINTS The MEA can be used to identify environmental resource and constraint information associated with a particular project site anywhere within the .study area. To accomplish this, follow these steps: • Using the MEA Page 11 Step 1: Locate the Project Site Plot the project's boundaries on the topographic base map found in the Map Atlas. Then transfer this information onto the acetate overlay.' The project boundaries should be plotted carefully to ensure reliable results. Step 2: Identify Environmental Constraint Codes First, match the tick marks located in each corner of the overlay with those found on the desired constraint and data maps. Next, note the map codes for all polygons located within the project site. If more than one data or constraint map is to be checked, the MEA worksheet (Section VH)" is recommended to record these -codes. Step 3: Look Up Map Code Interpretations Once the desired maps have been checked, and the map codes recorded; refer to the associated map legend for their associated interpretations. - If an expanded code- definition. is denoted on the legend page, check the Map Atlas appendix for more information, if desired. Reference may also be made -to the technical supplements for further information on any of the associated technical subjects. TO IDENTIFY MITIGATION MEASURES AT A -SPECIFIC LEVEL OF REVIEW The MEA can be used to identify mitigation measures which .can then be applied to projects to reduce or avoid potential adverse.environmental effects. To identify mitigation measures associated with a particular project, first complete steps 1 through" 3, and then do the following. Step 4: Convert Project Land Uses to Intensity Categories Refer to the Land Use Intensity Table in Section IV to find the land use impact intensity categories associated with the proposed project. On the MEA worksheet, circle each impact intensity category associated with the project. Note: For projects -with multiple impact intensities, a separate worksheet should be used for each intensity category if it will be important to know which mitigation measures are associated with which uses. ' Standard felt tipped pins may be used, but acetate drafting pins .work best. Both permanent and non- permanent types are available. • i 0 Using the MEA Step 5: Look Up Mitigation Codes Page 12 To find the mitigation codes, you must refer to the impact models found in -Section VI of this Guide. Follow the steps outlined below: A. Find the impact model of interest.- B. Look up the map codes recorded. during Step # 2 under the "Code/Interpretation" column. C. Under the LOR column, find the row associated with the current level of project review: D. Follow this row across, the page to the project's land use intensity, category. •E. List the associated mitigation codes on the worksheet. F. Repeat the above steps for each map code recorded on the worksheet. Note: If the project is undergoing concurrent processing, i.e. more than one level of review is being considered -simultaneously, 'a, separate worksheet .should be prepared for each level of review. This approach permits the' user to separately identify the mitigation measures associated with each level of review. Note: ' Under phase I implementation, it is not unusual -for the impact models to -yield duplicate mitigation codes. Simply disregard these duplicate codes. Phase II will eliminate the occurrence of duplicates. Step 6:- Locate the Associated Mitigation Measures. Using the mitigation codes recorded in the preceding step, locate the actual mitigation measures under Section V of this Guide following the associated impact model. Note: These measures. are available on the city's word processing equipment, and can be selectively reprinted for inclusion in staff reports or environmental documents. Step 7: Complete and File the Worksheet Sign and date the worksheet. Retain it with the project files as a record of MEA review, and as a future reference source for mitigation measures associated with the project. Using the MEA Page 13 TO DEVELOP A COMPREHENSIVE MITIGATION PROGRAM The MEA can be used to prepare a comprehensive program of -mitigation measures for a particular project. Such a program can be used to identify all of the measures expected to apply to a project as it moves through current, as well as subsequent, levels of review. To accomplish this, complete each of the steps as discussed above, with the following exception: Step 5 - Repeat steps 5C through 5E for each current and subsequent level of review. Note: While development of a comprehensive mitigation program represents a somewhat time consuming task under phase I, it will be readily accomplished once the system is automated. i • SECTION IV LAND USE IMPACT INTENSITY TABLE i 0 LAND USE IMPACT INTENSITY CATEGORIESM No Impact Open Space(2) Wildlife Habitat Wildlife Reserve Water Low Rural Density Residential (<0.1 Dwelling Units/Acre) Estate Density Residential (0.1 to 1.0 Dwelling- UnitslAcre) Medium Low Density Residential (1.0 to <5.0 Dwelling UnitslAcre) Medium Density Residential (5.0 to <10 Dwelling Units/Acre) High Meduim High Density Residential (10 to 25 Dwelling UnitslAcre) High Density Residential (25 'to 40 Dwelling Units/Acre) Airport Multi-Use(3) Commercial Industrial Landfill Sand and Gravel Operations Institutional Special Open Space(2) General Cementary Agriculture Regional Park Community Park Nature Center Roadway Projects 1 Land use categories adapted from the Irvine General -Plan Land Use Element 2 This categoryhas been subdivided due to the wide range of uses included. 3 Mixed or multi use projects must consider each use separately. • SECTION v IMPACT MODELS AND MITIGATION MEASURES i r� u i T 1 1 . 1 1 1 1 1 1 1 1 � 1 •.r 1 Q) 1 a + 1 1 - 1 .S. 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I I 1 1 1 1 w I M I M 1 1 !}� 1 1 LO 1 • 1 • t 1 • 1 1 1 1 t 1 I 1 1 1 I 1 I 1 1 1 1 I I 1 I 1 1 1 1 1 uo \ iLO by C b co C7 co -� a>" a� a� y � w O O.. u t~ y w Q a� U bn-••- C co it UO 0U O w N -y II .� N (1). v . - C w y co C�a co co O �.a Q GL O 'O Q 4-1 Co O "o a) U 0a if U 4►. a n O 0. C U co co U w.., a a� co .� cd sue. C U tL u \ � Cal co �. 3 bo C > •v > .— a) yo ... (x co C y 4. C O 1 0 if > O H aD February 27,1986 �' MITIGATION MEASURES C-1 Geologic Hazards 1.1 Concurrent with the submittal of an application fora concept ;plan, or change of zone, the applicant shall submit a preliminary geotechnical report in- accordance with California Division of Mines and Geology Notes 37 and 44 (Appendix A of the City's Environmental Review Matrix) for the following projects: a) All village level proposals b) Community/regional level shopping centers c) Major commercial/office centers d) Major public facilities e) Major transportation linkages d) Any facility critical to emergency response.(") f) - Major industrial developments (Environmental Review Matrix and Seismic Element) 1.2. Concurrent with 'the submittal of an application for a concept plan- or change of zone, the applicant shall submit a preliminary geotechnical report in accordance with California Division of Mines and Geology Notes 37 and 44 (Appendix A of the City's Environmental Review Matrix) for the following projects: a) Villages with high density residential b) District and regional shopping centers c)_ Major commercial/office centers d) Major public facilities e) Major public utilities d) Facilities critical to emergency response(") (Environmental Review Matrix and Seismic Element) 1.3 Concurrent with the submittal of an application for a concept plan or change of zone for any use proposed within SRA. 5, the applicant shall submit a preliminary geotechnical report in accordance with California Division of Mines and Geology Notes 37 and 44 (Appendix A of the City's Environmental Review Matrix). This 1 Hospitals; police and fire stations, municipal government centers, transportation linkages, and designated emergency centers, 1 Febraary 27,1986 C-1(Cont.) t ologic Hazards report shall focus ,on landslide problems. (Environmental Review Matrix and Seismic Element) 1.4 Concurrent with the submittal of an application for a tentative map, the applicant shall submit a detailed geologic and soils engineering report meeting the requirements of the Irvine Subdivision Ordinance. 'This report shall be prepared by an engineering geologist or soils engineer registered in California and shall be based upon adequate test borings. If the detailed investigation confirms .existence of geologic -hazards, the City shall require use limitations or special earthquake resistant design features as appropriate to the specific case.. Other specific recommendations included in the report shall be incorporated into the grading, building and improvement plans and _permits for the project. The City Engineer may waive the requirement for this report if he determines that based upon the findings of the preliminary geotechnical investigation and his knowledge of soils qualities no additional analysis is necessary; or, if a recent preliminary geotechnical' report has been prepared for the site as a partof previous project applications and this report is still valid. " (Subdivision Manual, Environmental Review Matrix and Seismic Element) 1.5 Prior to. the issuance of grading permits, a soils engineering report conforming to the - requirements of the Grading -and Excavation Code shall be submitted to and approved by the City Engineer. (Standard Subdivision Condition 2.2) 1.6 Prior to the issuance of grading permits for private parks, the applicant shall submit complete construction plans for approval by the Director of Community Development. All private- parks shall conform to the City. of Irvine design standards for public parks. (Standard Subdivision Condition 2.7) 1.7 Prior to issuance of building permits, the applicant shall obtain a precise .grading permit from the Department of Community' Development as required by the City of Irvine Grading and Excavation Code. (Standard Subdivision Condition 3.2) 2 February 27,1986 X: O � V U co 'H U tn N N N n N w N w N � 1 t 1 0 I I I 1 rl I I 1 I I I I t • 1 N I • 1 N I 1 I 1 1 N -1. I I I w l w �i 1 1 1 1 �D I C • I I' I 1 • 1 • N 1 1 1 1 N I 1 N 1 w I I I 1 1 t ^I 'I I U1 1 O r-I .• 1 1 1 I • I N I I I • I N i 1 I • I N N f 1 t I 1 I i I I I I I t U I I i N 1 1 I h I I I l a i:z: i V N M N N N ti N N N N N* N M N w N N N N M N N N O U a U ry I N � I • I N I I" 'I ' • I N I �O N -o ti N N w e+l D\ • N N w ti 0 ry N N a.1 ro ro a�"� k b � N O O 4.J O O � U February, 27,1986 • i tn A O H A H X It • � A A .ry OQ O R a o w� N N w N 1 � I N I 1 I O I I I • 1 1 N I • I 1 N 1 I I 1 N 1 3 I 11� • 1 O I 1 • I I N I : N 1 I NI a I 1 1 w l I I w l • �t 1 I • 1 • I N 1 N 1 1 • • I N N 1 I I I i I I I 1 � I I ti I I. 1 N I 1 w I M 1 I N I 1 w 1 N 1 � I I N I 1 1 1 � I I N 1 1 I M I � I 1 N 1 1 • I N I ry I 1 CV- i 1 1 I � . I ry 1 • I N -I I w I M I ^� ' 1 I N I 1 N 1 ry I I N . I I I N7 I � t I N I 1 w 1 M 1 � I • I N I 1 w 1 N t ry I 1 N I I 1 914 0. 1 Cl. l U l [ti 10. 1 1 ly 4 I U I h 10. I j l O U I U I N I E, I I V I V O I U 1 N 1 C— 1 I v I U a 1 1 I I' I I I 1 I I i 1 - I ry I •- I N • .N ti I • I N I O ti N N w H • N N w fy 00 " N N 1 1 O I - I . I • I 1 w I • ^• I I �O 1 Q� • I I • 1 • N I 1 N 1 1 N I 1 w I 1 •• 1 w ry I • 1 • N I N 1 • • I I N N I N � •N O ro ro Q) >~' ro �� as �o o� o O rz 41 .H v February 27,1981 0o .ro ro w •e ro� �I N CL � Q1 sy a N 44 C Q) O. ro ',q ZE: 4-J U II � 41 Q w Q- a) v to,�— C; ron U� O Q) v C7 Q w N� 'N 11 @ N0. U w a� ro �I U roo N •N c.'" U 4-J Co Uato O a u U 4-1 a n O U 0. N pU ro ro -U a Ca• 4.4 ro 'H• H li-- 41 co :~ � H � N N U C7 U Q) ly w o ro IIa\E ma's~ co 3 C� U Q) 'N N 'C7 N 4-3 •H x ro 4-4 O N w h +J � •H O tl C ah�. • i v. � R '-C 4. •r U c Q 4. c k- Q U T c R I I • 1 I I 1 1 I t 1 I I N I ! I I I I 1 I 1 1 I I I 1 I 1 I I I I 1 ! I 1 I 1 ! I 1 1 1 ! 1 1 I 1 N w M N w N N N e1, I � I ao C 'H 'G) ro w .e co *-+ - a> Q) :~ a Q) �u C � O ro •H +-) - U I II d 0. 4J Zz- C w p . NU a0v C co Jz • U� O Q) U C w N 4 • jy o U Q) N� U - i C •• Q) ro C U) Q. roD = �1 U fy ry U ro O 4-J C Q) H C U 4-1 ro C H O TI Q) U C -v) O ZZ) u U W U ty Q) w i.1 CU ro ro U ro-'H co �� ro Q) Q) v C U ro 4-1 0.. •H n � � a U Q) roa to 3 C H > 'O Q) a-1 'H oll ro 4.jCO 4-4 a w oE-, 4-1 ^1 •H Q) a -B ro C� N -a ELs I . February27,19M v, O U • C i a.;Q, iU;&,;a. iQ- ip l o0 C 'M •O . - o C; ^ - roH H U _ ro I~ a m ro 'N: - C:1 'II C a � C - wo - O U bo � - - C cp if v� - - o �U C 0 N � ly o -C N ca - H U IZ. H U 4.) C O •N C U 4.J ro C N O 'Tf N U C � 4-4 O D n U U u O CL. N • ►� i.7 Cv ro a a� ro N H ::i� 44 cu �q k H N C U N ILI w ro a N u � � Cy U N CZ ro a • E-, bo 3 C N N N •N > b � C 4 O O w 44 H �'N a�a ry - February27,1986 a w A O H� U C :3c, H i 13 1 1 1 1 - �1 1 O I I 1 a I I I Ir'1 1 I 1 - • I 1 f N 00 tV n N N QO N t� N w N I 00 N H N z ti • CV p O C7 I U I N I C�1 ►� I U l U a I b 1 I 1 I O ro •� a o �rn> O O � 4-J 0) .0 N roC4 k • N 1 1 1 • 1 1 1 I ! N 1 I 1• I I 1 1 i I I f f C�7 i U i N i h U s February 27,1986 a A O y �1 ti .4cq A N O ti h A . D �i H � b A � A N O c ti O O ro to U •r'I tz dJ C N d.t R 1'-I N co D b $ C C co'N a b 3 I I 1 1 I O 1 1 1 1 1 1 I 1 U1 1 ! I 1 t ry I 1 1 I 1 • I 1 I I I N I I 1 1 1 1 !. I I I I I. I 1 ! 1 ! a alalQLE-4I l�l O C7 I U t N I H 1� 1 U a I 1 I 1 1 Lrn N I 1 I U'1 1 1 I I I I 1 I 1 I 1 1 1 I • I N 1 1 t I I I I I I f1. I 1 11, I I V i I C- I I n, f I l A I I � I� I . N I w i N w H • N 00 ti N N j w 1 N co ti N H N M N z O U February 27,1986 0 • a w A O h ci 0. 0 co III L4 11�4 Q 0 'H Q to 10 R ti ro A ro 'N U v Q. tn 3 1 I r t i O I 11 I 1 a 1 1 I ► I I N I I I ► 1 � ► t ► I 1 I r I 1 1 1 N 1 1 ► ► I 1 t I � O �L ► I ► 0. I U 1 I C� I ► Il, ► I 1 0- C ti C O N � C o ro C> >C 'U c a v cox cn 00 N N w u? N I 1 I' to I I I 1 1 I H I r 1 I ► I . r 1 •I 1 I I N I I I I I 1 1 r I 1 1 t t i I 1 1 ► 1 1 I ► I r I I I a 1 a t U I h 1 a -I CL. 1 Co • N n • N w N 2 O U to C 'N b ro 1~ U w •• ca a > v >ti a v 4.*j c co o* - .ro •H a-1 U II z 1-4 w Q v. U to �- ro if O vU C O w N. 11 8 U Ib C N a C. w v U cri ry Co C i.i C ro C% o v 'H v U 41 Co C'N � O T1 U C 4.1 O O II- U co 4 n v Q. cri U +.1 o Z� U C U •H ro 4J a a4-3 ro 1~ �I :lz v ro U 1- v N w C U ro v I~ +.1 C7 ro N 4j v a Ua c� ro to .. �, C 3 •H v v 'T7 v 41 z 1� ro az 4.3 4y C O v O E-4� v If e v� v a E-4 February27,1986 r L--j a w A ti V H Co U O a 3 i I 1 I I I 1 O •a I 1 1 I I I 1 I I ► I U"1 I I I 1 1 ► 1 N" 1 t 1 I 1 1 I ► I 1 ^1 1 I 1 1 OQa I V I N I I" I ti C ti W ti N t OP 1 � I N 9 0 1 , 1 • 1 t 1 1 11 I 1 t I I I N I t 1 1 i I 1 I I C7 ! t 7 U I I I � t N i C� 1 ► �1 I I I I f U b Q ro� N O ti 4 to .N ro ro o O C •N > >~ ro " to a, x ro a O N N b y February 27,1986 a w A O e ro A 3 i i i i i O I I 1 1 I t I i I 1 I N I I 1 c 1 1 1 t 1 1 1 1 1 1 ti 1 1 I I I a I 1 I 1 I .0 C N to N to ro > k4 C C Q1 C4 W ry N w • N • N 0 N ti N z ti • N 00 '-f N N H N Lr) N 1` 1 I ir1 1 1 I 1 f • 1 1 I 1 I N 1 1 1 t i t I ED i 00 N N- • N CD ti • N N w - H N Oo H N N. ry CV February 21,1986 i O O 14 C O 'N a.l ro .0 C C C H e ca A • ti ri Z c ft P4 ro .H U . N a 3 O i i I I i I a i t 1 i I I t 1 U1 ► 1 I 1 1 1 • 1 I I 1 1 1 N 1 1 1 I 1 I ry O a CD 1 1 I 1 I 1 I V I t 1 1 I 1 N I 1 I 1 f I 1 I I I C O 0) �000ro� 4,J ri) C C a) Ca)x I I I r I t t i I N 1 I i I 1 I 1 I I a I I a I I V N 1 I (~ I I C4 I I 1 a I O C � c o oc000 N N ro ro N -W 4J ^I N � C •N ro cd ce.U) February27,1986 A N 0 ti ti A H A � \ C o� �a o wU a f 1 I , f I , 1 I 1 1 i I I I I , 1 I f I 1 1 l e ro A 'ZI C C m -14 ro a \ O a. L ro to •H U N ro ro o �C °H d.f r-I I~ O C 'H O -C a; D U N ti N w N 00 N w N 'w �O • N 00 ~ li N w H N N I I I rr'1 I 1 I 1 1 1 • 1 I 1 1 I 1 I I N I 1 1 r 1 I 1 1 I I H 1 i i U C w ro N O� C •H C-4 k 4 0., N ca t N February" 27,1986 Z . 6 A A N O H H A H � A A •N � G7 �.1 O ►� U O CD ► U ► N ► @-� ► ► ► a t ► ► ► ► U ► U Co so m �q A M� a a \ •M O a 4.j 44 k N ro 3b z O Q � H 'February 27,1986 0 MITIGATION MEASURES C-2 Flood Hazards 2.1 Concurrent with the- submittal of a concept plan or zone change application fot 'a project located adjacent to either Sanr Diego Creek or Peters Canyon Wash, the. applicant shall submit a conceptual flood control plan. The concept plan shall address alternative designs selected for analysis by the Director of Community Development for the flood control channel and adjacent open space areas. The plan shall discuss phasing, projected costs, funding sources, and required public agency approvals for each alternative. - . Each design considered shall be in conformance with the policies of the General Plan; in particular implementing actions which support objectives L-1 and L-4:. Special attention shall be paid to areas designated as either "moderate" or "high" ecological sensitivity according to the Master Environmental Assessment. The concept plan shall be submitted to the California Department of Fish and Game; and U.S. Fish and Wildlife Service for their review and comment prior to consideration by the Planning Commission. (General Plan Policies L-I f, g, h, i, j, k,1, o; L-3 f; L-4 g, h, t, u; V.E. 713.4 (4). 2.2 . Within a regulatory floodway, uses permitted. are limited to the following: a. Spreading grounds and basins; roads, bridges and intimate. flood protective systems constructed in accordance with plans approved by the Orange County Flood Control District. b. Farming, including all types of agriculture and horticulture (except orchards, tree crops, nurseries for producing trees, vines and -other horticultural stock which could obstruct the natural'l, flow, of floodwaters), grazing, gardening, wildlife preserves, forest preserves and similar- open space or agricultural uses. (Zoning Ordinance V.E. 503.3) 2.3 Within a regulatory floodway uses permitted subject to -a conditional use permit are limited .to the following: a. Interim flood protective measures b. Public utility facilities and distributing systems provided: February 27,1986 C-2 Flood Hazards 1. New and replacement water supply 'systems are designed to minimize or eliminate infiltration of floodwaters into the system. 2. New and replacement sanitary sewage systems are designed to minimize or eliminate infiltration of floodwaters into systems and discharge from the systems into .floodwaters. 3. On -site waste disposal systems are located to. avoid any impairment to them or contamination from them during flooding. c. Temporary (not to exceed six months) and readily removable structures accessory to agricultural uses. d. Recreation areas, parks, ,campgrounds, playgrounds, fishing., lakes, hunting clubs, riding and hiking trails,, golf courses, golf driving ranges, polo fields, athletic fields, parking lots,- all of which involve only the open use of 'land without permanent structures or improvements. e. Excavation and removalof rock, sand, and other material. The application for the conditional use permit shall be forwarded to the Orange County Flood Control District for 'review and comment prior to final Planning Commission action. Approval of the conditional use -permit is subject to approval of all other required local, state, and federal permits. (Zoning Ordinance V.E. 503.4) 2.4 Within a regulatory floodway, the following uses are prohibited: a. Landfills, except as required in the construction of - an approved flood protective system. b. Excavations that will tend to broaden the floodplain or direct flood flows out of the natural floodplain. c. Human habitations. d. Storage of floatable substances or material's which will add to the debris load of a stream or watercourse, except where said materials are temporarily stored for use in the planting or harvesting of agricultural commodities. February 27,1986 C-2 Flood Hazards i r� 2.5 e. Notwithstanding sections V.E. 503.3 and 503.4 of the Zoning Ordinance, any new construction, substantial improvements, development or encroachment which will endanger ,life and property or that would obstruct the natural flow of flood waters so as to result in- any increase in flood levels within the community during the occurrence of the base flood discharge. f. Any alteration or relocation of a watercourse, except: 1. That which is in accordance with an approved master plan of drainage, or -has- otherwise- been specifically approved by the city council, and then only provided the overall flood -carrying capacity within the watercourse is maintained; 2. ' The city has notified and requested comments of the Orange County Flood Control District, State Coordinating Office and adjacent communities prior to city approval, with copies of the notification forwarded to the Federal Insurance Administration. ' 3. All necessary permits required by federal or state law, including section 404 of -the Federal Water Pollution Control Act Amendments of 1972 have been approved. g. All uses not expressly permitted by sections V.E. 503.3.and 503.4.(Zoning Ordinance Section V.E. 503.5) Within a Special Flood Hazard area, the following uses are permitted provided all required local; state or federal permits have been issued: a. All uses expressly permittedin the FP-1 District b. Orchards, tree crops, nurseries for producing trees, vines, and other horticultural stock and similar open space or agricultural uses. c. Temporary (not to exceed six months) and .readily removable structures accessory to agricultural uses. (Zoning Ordinance Section V.E. 503.6) February27,1986 C-2 Flood Hazards 0 2.6 • Within a Special Flood Hazard area, the uses listed below are permitted subject to the approval of a conditional use permit approved by the planning commission provided all other local, state and federal permits have been issued. The application for a conditional use permit shall be forwarded to the Orange County Flood Control District for review and comment prior to f1na1 planning commission action. a. Interim flood protective systems. b. Public utility facilities and distributing systems provided: 1. New and replacement water supply systems are designed to minimize or eliminate infiltration of floodwaters into the system. 2. New and replacement sanitary sewage systems are designed to minimize or eliminate infiltration of floodwaters into systems and discharge from the systems into floodwaters. 3. On -site waste disposal systems are located to avoid any impairment to them or contamination from them during flooding. c. Recreation areas, parks, campgrounds, playgrounds, fishing lakes, hunting clubs, riding and hiking trails, golf courses, golf driving ranges, polo fields, athletic fields, parking lots, all of which involve only the open use of land without permanent structures or improvements. d. Excavation and removal of rock, sand, gravel and -other material. e. New residential (excluding mobile - homes), commercial; industrial, institutional and agricultural structures, including substantial improvement thereto, permitted by the village zoning; . when these uses comply with building, health and subdivision code. requirements applicable to flood hazard areas and with the following conditions: 1. Adequate drainage measures are provided to reduce exposure to flood hazards. February 27,1986 C-2 Flood Hazards C-I 2.7 2. Residential_ structures shall have the lowest habitable floor (including basement) elevated at least one foot above the base flood level, or in the case of AO or AH zones to the depth number indicated on the FIRM. 3. -Non-residential 'structures. shall .(a) have the lowest floor (including basement) elevated to or above the base flood level (in the case of AO orAH zones to the depth number indicated on. the FIRM) or (b)- together with attendant utility and sanitary facilities, be designed ,so that below the base flood level (or depth number) the structure is watertight with walls substantially impermeable to'. the passage of water and with structural components having the. capability of resisting- hydrostatic and hydrodynamic loads and effects of . buoyancy: Where floodproofing is utilized for a particular structure, a registered professional engineer or architect shall certify in the form of a letter that the floodproofing methods are adequate -to withstand the flood depths, pressures, velocities, impact and uplift forces and other factors associated with the base flood. A copy of such certificate indicating the speck elevation (in relation to mean sea level) to which such structures are floodproofed shall be maintained with, the, building permit for the structure. 4. All landfills, substantial improvements, new construction or other encroachments with an effect on the base flood level such that the water surface elevations of the base flood would be increased by one foot or more shall be fully offset by requirements for stream or channel'improvements. (Zoning. Ordinance V.E. 503.7) Within a Special Flood Hazard area, the following uses are prohibited: a. Mobile homes. b. Landfills, improvements, development or other encroachments 'that would increase water surface elevations of the base flood more than one foot and that cannot be fully offset -by stream or channel improvements as provided in section V.E 503.7 of the Zoning Ordinance. February 27,1986 C-2 Flood Hazards s c. Excavations that will tend to broaden the floodplain or direct flood -flows out of the natural floodplain. d. Storage of floatable substances or materials which will add to the debris load of a stream 6r watercourse, except where said materials . are temporarily stored for use in the planting or harvesting of agricultural commodities. . e. All uses not expressly permitted by sections V.E..503.6 and 503.7. (Zoning Ordinance Section V.E. 503.8)_ 2.8 Prior to " approval of the first tentative map, or approval of plans for improvements adjacent to either San Diego Creek or Peters Canyon Wash, a detailed drainage and flood control study and plans consistent with the approved conceptual flood control plan, ,shall be submitted and approved by the Director of Community Development. The detailed study and plans shall determine the capacity, alignment, and design of facilities necessary to accommodate the 100-year design flood (as determined by the Orange County Environmental Management Agency). The study shall also identify any hydrologic changes to upstream, adjacent or downstream areas as a.result of the proposed' improvements and propose measures to avoid any adverse effects. Note: This condition shall in no way be construed as a City's commitment for financial or maintenance participation in flood control. improvements. (FIA regulations, Irvine Floodplain Overlay District, V.E. 503; V.E..713.4 [61), V.E. 733.5 [11]) In conjunction with the submittal of the detailed flood control plan, the applicant shall submit a flood control facility maintenance plan.. This plan shall identify maintenance needs and responsibility, and detail an effective method to assure the City that the identified flood control_ maintenance responsibilities will be carried out. (V.E. 713.4 [7]) 2.9 Each tentative map located within an area of special flood hazard shall include the following information: a. Designation. and boundaries of special flood hazards, including base flood elevation data: If no special flood hazards exist, a statement to this effect shall be made. February 27,1986 C-2 lood Hazards b. Designation, location, widths, and directions. of flow of all water courses and flood control channels. (Irvine Subdivision Manual Section 4.3 a.1361' and [371) 2.10 Prior to recordation of a final map, the subdivider shall construct or post security guaranteeing the construction of the following public and/or private improvements in conformance with applicable City standards and City's Capital Improvements Policy: Storm drain facilities Plans for improvements shall be approved by the City Engineer. Construction of improvements shall be under the inspection of the Director of Public Works. If the work is to be bonded for, the construction of improvements of any portion- of the project must be completed prior to the issuance" of certificates of use and occupancy for that portion, of the project or .a time certain to be established at the time of bond acceptance. (Excerpt from Standard Subdivision Condition 1.1) 2.11 Prior to recordation of a final,map, the subdivider shall pay all fees as specified by the City's Master Plan of Drainage and all applicable "Areas of Benefit" charges. (Standard Subdivision Condition 1.3) 2.12 Prior to the issuance of precise grading permits, the developer shall submit to the City Engineer, detailed drainage studies indicating how the project grading in conjunction with the drainage conveyance systems; will allow buildings pads to be safe from inundation from rainfall runoff, which may be expected from all storms up to, and including, the theoretical 100 year storm. (Standard Subdivision Condition 2.5) 2.13 Prior to the issuance of building permits for development located within a Special Flood Hazard area, the developer shall submit, in a form acceptable to the Director of Community Development, the following information for transmittal 'to the Federal Emergency Management Agency: a. A complete set drawings approved by the Orange County Flood Control District for all flood control improvements. b. Complete documentation, including all engineering calculations, which supports deletion of the - the Special Flood. Hazard designation. (Irvine Industrial Complex East, Phase IV Tentative Map) Febwary 27,1986 C-2 lood Hazards 2.14 i • Prior to the issuance of certificates of use and occupancy within a Special Flood Hazard area, permanent flood protection improvements shall have been completed and accepted for maintenance by the responsible agency, and a letter of map amendment (LOMA) shall have been received from the Federal Emergency Management Agency (FEMA) removing the Special Flood Hazard designation. However, certificates may be issued without a LOMA at the discretion of the Director of Community Development under the following conditions: . a. The City has received conceptual approval of the flood control improvements from FEMA in writing;'and, . b: All required documentation, including as built plans, have been forwarded to FEMA for final action, and c. The developer has posted security guaranteeing ' - revision and/or modification, -if necessary, of all plans and improvements as required by FEMA. Where certificates are issued prior to receipt .of the LOMA, the developer shall advise all buyers of the procedures necessaryto obtain a refund, if warranted, on flood insurance premiums. (V.E. 700.2 [6], and Irvine Industrial Complex -East, Phase IV Tentative Map) Vebmary 27,1986 • i C-2 Dam Inundation 2.15 Prior to approval of a tentative map within a dam inundation area, the Director of Community Development may require the developer to complete an analysis of the inundation hazards associated with the proposed development. If completed, the analysis shall identify feasible measures available to minimize risks to persons working or residing in' the area. All feasible measures identified shall be included as conditions. of the tentative map prior to its approval. (Government Code 8589.5) (V.E. 713.4 [9]) 2.16 Prior to the issuance of grading permits within a dam inundation area, the developer shall submit to the Director of Public Safety revised dam inundation maps reflecting changes, if any, resulting. from the proposed development and its affect upon existing inundation boundaries.' 2.17 Prior' to the issuance of building permits within ' a dam inundation area, the developer shall submit a document separate from the deed which will serve as an information notice to future property owners. The notice shall address dam inundation hazards and the existence of emergency evacuation plans for the area. The content of this document shall be reviewed and approved by the Director of Community Development prior to recordation. 2.18 For development within a dam inundation area, the City shall. prepare .by an emergency evacuation plan pursuant to Government Code. 85893 if, following a review of the inundation 'maps, the Director of the California Office of Emergency Services finds that there exists a risk of injury or death as a result of partial or total dam failure. Should there be a previously approved emergency evacuation plan in effect for the area, that plan shall be updated in light of the current -and proposed land uses and the revised plan shall be reconsidered by the Director of Emergency Services. (California Government Code 8589.5) February 27,1986 Z M ry 1 • I M I M I I w I 1 I 1 1 1 w I I v N I I I • • I 1 _ 1 I I •� 1 • • I I 1 cT M I I 1 I I I M M I - I t w •• 1 I t 1 I 1 w w I ti t ti I M �O 1 I I I ^I 1 ti t M NO I • 1 • 1 • • 1 I I 1 • I • F • • I M I M I M M 1 1 I I M I M I. M M I w 1 I I 1 1 I I I I �7 • • I 1 1 I • • I MCV) 1 I I 1 I I I t I I M M I 1 1 �I 1 w w I M �O I I I 1 I I 1 1 �I 1 I I• �I I • 1 w l M 1O b • • t 1 I I 1 I I • M I • .• I M M I I 1 1 I 1 I I I I 1 1 I I 1 • I M T 1 I I C1 1 I 1 1 1 M M I 1 1 I 1 I I U I I I h 1 I I I 1 0. 1 t I 1 1 1 L1 1 ly t t I 1 I U 1 I I 1 1 I N I E-, I t I C7 I U I N t E, 1 1 I U 4-1 ro N" ro CO N Nam• b N O � N Febtuary27,1986 00 •ry b ro c� ro -� ro� " a) a > a1 :~ a a� 4-3 a roo ro •ry U II O a4J C w ° oU a ro u U� O at U O N 4w Ua�ro w Ili U C co U co -4 b ro c 4-1 C CO ao N •H N U 4J Vl O •H ZZ) O b U I; 4-+ O O u U In 0. 11 ro U � a ro C: U N ro 4-1 a a� ro .s q :z a) ro U ro a1 w C U O U' ro •H a e � O CL� U 0.' 1~ to • r~ sr 3 •H" N N b N •u O x m 4.1 q w b a to h a.t ry 'N a1 u 8 aha 0 I ti I M " I . I M N to M M w 4 I\ M M C?'1 �,O M M w w I N U1' Cl) M I I I w I t r 4 t� 1 I I • '• I I I M M I I I I I 1 w w Q t 1 1 • a i I I M M t I I 1 I 1 w w t �1 1 ti 1 N U1 1 , I • 1 • • I M I M t M M M M M -M 1 H t ^I I • i • I M 1 M i 1 t, I M M I w w I M M w w ' N cr1 M M w M M M %0 M M N u1 M M M \O •. • M M I N U'1 I c4 M • i i ,- 1 C I 1 I I 1 I a 1 2 1 p t p C7 I U i N i E-1 I I U t U C� I U I N I C~ I I V i V a i I 1 1 1 1 1 I I 1 I I oa a •ri 'tl ro s~ w •• c-� co " ry a> a� tia m- 4JC to o 44 co rq II C t3. 4-1 r4 C w Q NU C - ron U� 4 NU C O w N 4J •H II E2 U N =� N 0.- U C w N ro C Ul a cc " U Q" m o 44 c Q. o b N •,.I C y4.J ro Ob O U C � O � uU 4-1 ty n o U a N CU ro - cd U " w .H CL,�4-4 ro •1`I ry :�Z as ro � � � O O OU C U Q � w c7 CO 4-J 0., •N (�D roa i~ •. E-4 to 3 C N O N •H > b ' U 4J 'N Ce ro 4JQ:� 4-4 Q H. •r'1 ar u e aha February-27,1986 0 i Co •N U v a C O 4J ro v41 b v O >ti U a v C • M i i i i I f i i 1 I I w 1 i i i I f i 1 I I 1 I I 1 • • I I M M 1 1 11 I f I 1 1 1 I 1 w w 1 1 1 I i . I M 1 1 i .'t I M 1 1 • • 1. I Cl) M I I 1 I f I I I I 1 1 1 -, i I i I 1 I 1 1 I 1 I I co ro 'N - b ro U w.. co ^I v as v r� a 4Jro to co N Zy U II C a4 �m c w Q vU •apt.. C cu u Uo• ' vU C O w . N 4-1 N 11 8 ty e w v ro Ir m a ro -o �y U a roo 4i C v N C U a-1 ro C •N ob v U o � u U � IL p o U ' a v w .7 44 �U ro ro U 4-3 0. A.•ti-a ro •N ro s~ C U w c� cu 4-j a •N u Ez- a U v c� ro a ti .. F, to 3 C N v' •N •N > b � •N ^I N a-1 N ro 41 rn 4-4 Q w �I a..1 "I N v 11 Q v Cti v a ha February 27,1986 • • MITIGATION MEASURES C-3 Fire Hazards 3.1 Prior to concept plan or zoning approval, the applicant shall provide evidence that existing or proposed infrastructure and fire protection services will -be adequate to serve the proposed development. Where existing emergency response time and/or services would not be adequate, or where existing fire flow levels are inadequate to protect the proposed development, .the applicant shall submit a plan to the the Director of Community -Development which demonstrates how any deficiencies will be corrected. Possible measures to be considered- include dedication of fire station sites, financial contributions toward additional equipment and/or personnel, improvements in water system capacity, or additional built-in fire protection for structures. (V.E. 801.2, A, 4, e) 12 Fire hazards shall be reduced to an acceptable level through design of the proposed project and/or modification of fuels on the project site and adjacent wildlands in accordance with the Fire .Protection guidelines contained in the Hillside Development Manual, and the requirements of the Orange County Fire Marshall. If fuel modification is proposed by the applicant, he shall submit a fuel modification plan in accordance with measure 3.5 -below. (Hillside Development Guideline 7 A) 3.3 Prior to the recordation of the -final map, the Subdivider shall construct or post security guaranteeing 'the construction of the following public and/or private improvements in conformance with applicable City standards and the City's Capital Improvements Policy: Domestic water systems. Water improvement plans shall be approved by the Fire Marshall, IRWD, and the City Engineer. Construction of improvements shall be under the inspection of the Director of Public Works. If the above work is to be bonded;for, the construction of improvements for any portion of the project must be completed prior to the issuance of certificates of use and occupancy for that portion of the project. (Exerpt of Standard Subdivision Condition 1.1) February 27,1986 • C-3 (Cont) Fire Hazards 3.4 Prior to recordation of a final map, the subdivder shall offer an .irrevocable fire protection access easement as required by the Orange County Fire, Marshal for any private roadways within the"development. The easement -shall be continuous with the travel way for the private street as shown on the final map,, and shall- be dedicated to the City' of Irvine. The CC&R's. for the project shall contain provisions which prohibit obstructions within the fire protection -access easement and also require Fire Marshall approval of any modification such as speed bumps, controlled access, or changes in parking plans within said easements. (General Plan Implementation Policy J 2 b) 3.5 Prior to issuance, of building permits, the applicant shall submit.a fuel modification . plan to the Director of Community Development for review and approval of the Orange County Fire Marshal. The plan shall show the treatment needed to achieve an acceptable level of risk in regard to the exposure, of structures to flammable vegetation and shall address provisions for- continuous maintenance by either the adjacent landowner' or.the -community association. The fuel modification_ plan shall also identify appropriate methods to reduce any secondary impacts on biological resources or visually sensitive areas. Provisions of the approved plan shall be implemented prior to the issuance. of certificates of use and occupancy. (Hillside Development Guidelines 7 A, and 8 C) 3.6 Prior to the issuance of building permits for combustible construction, evidence. that adequate water supply for fire protection is available shall be submitted to the Orange County Fire Marshal. (Standard Subdivision Condition 3.3) 3.7 Prior to issuance of building permits for any controlled entry access facility; the applicant shall submit construction details of the. facility for review, and approval of the Fire Marshall. These details shall include width, clear height, and means of emergency vehicle override. (General Plan Implementation Policy J 2 b) February 27,1986 14:4 a w w � A H � � v ti a Co O a cn �1 O N 4J 4-" ca to 4J 'N N dt H O 8 C � R1 'M a 'v "'1 3 � � O "1 a 'M a ro v O U •rl 1 to O V mli d.l Co • 'x •. w w .ri m � ti V � 44 as � I 1 I I ! f w 1 • 1 • I I 1 I� 1 I �t I � 1 � • 1 I I 1 • I • �'' I I • N t i w 1 1 w • 1 Ui i ul �`-I I 1 U1 � f • I • • I I • . I �7 I � � 1 t I M ry I M1 R'1. I I I I 1 ! I t t 1 I 1 1 I i I Ch I � 1 • 1 • 1' i w ey 1 I 1 I I (�} • 1 w 1 w 1 t i 1* 1 M 10� 1 I � � t • 1 • 1 1 �' I 1 w 0 I I M! 1 Nt I Nt I* 11* 1 I 1 ! I I 1 ! 1 t I 1 I i t • 1 Q� I !� I 1 �7' i • 1 • 1' I M I t 1 1 w H 1 1 1 i N • 1 1 w - 1 I ' • 1 CO �7 I • I • 1 1 w p ! I M I I \O I t ti ti 1 t!1 �i I Ln ^I I I 1* N* I f I i I I 1 ! 1 I 1 ! 1 ! I 1 1 1 1 1 I 1 1 A. • 1 Q� I ti 1 1 M I N • 1 w 1 w I I •� 1 O 1 O� 1 1 � 1 • 1 • 1 I I ti 1 I' L1 1 u'1 1 t 1 I • • I I �•' • Nt • • 1 1* 1* I t t 1 1 1 1 1 I ! I t I I r I 1 1 I i Q� i V i N I Cry ( t I I I 1 I I ro v February 17,1986 C4 w t 1 Q` 1 • 1 d\ � 1 I w I w �'' ►. w 1 00 1 00 1 00 1 17 N 1 1 Nt i w • I U1 1 U1 • ! U1 �7' i •� I • �7 I. +� I Cr) M t M I 1 I ! 1 I ► 1 ! • 1 D\ 1 � 1 � 1 • 1 • 1 w H 1 1 1 N • I w I w 1 1 00 1 • I 1 w 0 t 1 M I I \0. 1 1 �f ti 1 U1 �i I U1 -4 1 1 1 I ► I 1 t 1 I 1 ! t I t 1 1 1 I 1 f 1 I 1 1 I 1 I 1 w I M '1 I • 1 D\ i ti 1 I 1 1 I I N •! w 1 w I I • I 00 I_� 1 • 1 • f I w p t I fIn 1 I ryti 1 U1M� I_U1 24 t I �•� I ��7 1 �7'�' 1 I 1 I I 1 t 1 I ! 1 1 t• 1 t 1 V 1 w I M ! 1 I at ! ti t 1 t M I �7 1 w wy 1 1 I 1 N • I w I w 1 1 1' 1 00 1 O 1 1 �T I • 1 � t 1 w 0 I 1 M 1 1 \0 f I ti� 1 U1 ti 1 lC1 ti t 1 �i' � I �7 �' I �7 �7 ► ! ► 1 1 f 1 t 1 I I 1 1 1 Cl. ! V I N I I 1• i 1 I 1 1 R 'H b ro ryP •O ro *� �I v QS I N �J C • � O I o •H .0 • II O• ly 4j c Q vU Oaf C ro 11 U� O - . C w • N �.1 . 11 ® U C row® 'y dJ Q. CO 13. O v 'H v U -W Ul O .H U C 4-1 O O u °U• O 0. 11 v >a ro 'J U - � C U •N ro 4-4 rl w 'H a Q� 4-) ro ro U Iy�H v w Q C� ro •N a� 4.1 N 0. U 0. c� ro ly to, •. E C v v 'G ro 41 44 Z w v Il 8" v �, O Febmary 27,1986 0 a N ca C ro a wN Lf1 "1 1; 1; w H N Q� l M 00 I Q Q 1 ON 4 F, i 4 1 Q" I � C—, ; ; U I U ` a ti C'.) ti O W� ra ro ca Q w N 00 ti ti • I -a I • I � 1 00 I • I � I I V I V I I I m� ro-4 U O C ca . Az I -I F, O ti s~ .0 at o 1-I Febmary27,1986 • I-. L -1 H U 0U co •H b ti C '1 ro� s-I N a, a a� a� u c ro o ro H Z_- 4.J ' U II D 0. +J w Q NU - c ro n NU ' O w N 4-J 'H II 8 N Cl. U N ro c V] C% ro:Z) z �I U a r-i U ro 0 IS, O 'C1 Ili 'H c u 4J ro c .,I O Ic O o � - n U 0. it O - U a m dJ cv ro tq U a a� ro •H ry 44 m vU $y c� m +: 0. •H n 1; 0. U N C7 ro 0- to 3 c N.N •H •H > `d N 4 H 4 a� 4-4 c 0 Q) w h is �I 'H N lu Q 5. 1-4 ►a ,� a. February27,1986 C, i MITIGATION MEASURES C-4 Agricultural Capability 4.1 Urban development should normally take place in those .areas with the least productive soils leaving prime and pdtentially prime lands for agricultural use. (General Plan Policy L-3 b) 4.2 Preserve range lands with high quality_ soils for forage production. (General Plan Policy L-3 c) 4.3 Preserve Class I and H soils in parcels of sufficient size to permit: a. The efficient utilization of best available technology b. Crop diversity to minimize risk of dependency on few crops c. Double cropping d. High yield crops (General Plan Policy_L-3 c) 4.4. Bring areas in agricultural production under Williamson Act Contract. (General Plan Policy L-31) 4.5 Encourage the maintenance of agriculture on a permanent basis in those areas of the planning area designated for permanent agricultural use. (General Plan Policy L-3 a) 4.6 Land which is unsuitable for building because of hazards to public health, safety,_ and welfare should be preserved in an open space use, such as agriculture. (General Plan Policy L-3 e) 4.7 Maintain agricultural usage throughout the City as much as practicable. (General Plan Policy L-3 g) 4.8 Encourage and support Federal and state legislation proposed for the purpose of preserving agricultural lands which are compatible with the City's goals and objectives. (General Plan Policy L-3 i) 4.9 Counteract economic forces which make agriculture noncompetitive with urban uses. (General Plan Policy L-3 j) February 27,1986 • • C-4 (Cont) Agricultural Capability 4.10 Use the California Land Conservation Act of 1965 (Williamson Act) to encourage the temporary use of agricultural lands. (General Plan Policy L-3 k) 4.11 Open space easements should be used to preserve agriculture _uses on a permanent basis. (General Plan Policy L-3 m) 4.12 Remove the right to develop land desired for agriculture through fee or interest acquisition. (General Plan Policy L-3 n) 4.13 Avoid early development of selected areas of prime agricultural land. (General Plan Policy L-3 o) 4.14 Agriculture shall be permitted within all zoning districts. (V.E. 201 and General Plan Policy L-3 a)) 4.15 Uses permitted- within areas zoned for. exclusive agriculture shall be limited to the following: a. Agriculture b. Accessory uses c. Commercial greenhouses d. Private stables - (Zoning Ordinance Section V.E. 201) 4.16 Uses conditionally permitted within areas zoned for exclusive agriculture shall be limited to the following: a. Caretakers quarters b. Commercial dairies c. 'Kennels d. Packing plants for agricultural products e. Public stables (Zoning Ordinance Section V.E. 201) February 27, 19 86 � U ti W W tir)h I � U3 ww H h 3 O a 14 W O a C O 'H dJ a ti N 1 1 1 1 I I t i• I I N 1 I 1 I t 1 1 I 1 i 1 t • 1 I t ! I 1_ f t ► , ! 1 1 i 1 I 1 1 I 1. 1 I t 1� ► 1 I I Y 1 1 1 f 1 1 ! • I L t 1 I I I ! 1 f 1 I I 1 a. f I 1 a► U I I a 1 I h► 1 ► a I a, I t o 1 1 t U f I a I ! h l ! a ► F, (~ "1 ► U) ti O -'U O.� 'N +J ~ H - O ^f U N k ,u ro 3 N 4J �4 O •C O 4 � N '~ � ro Febtnary 27,1986 i • 3U 3 ,y ro 'H U Q) a co a 0 .H 41 R i-4 N ry I N 1 1 l 1 I I 1 d ! I t f • '1 i 1 i t 1 ! I 1 ► t I u1 1 ! I I I 1 I 1 I 1 I' 1 I J • ,1 I 1 1 1 I 1 I t 1 1 1 tr1 I 1 1 1 1 1 1 I I 1 1 1 t t ! 1 , 1, 6 .► 1 1 1 1 , 1 Ch I U r N ! r E-� t t 0 C9 f U + N I t H• + 1 O a a, a,. b A x co •rl Qt 4-4 to • a., 4-1H M &, z rotoroar U Q) February 27,1986 i ro 'M Q Q O Q 0 a a� co ro V x 14 ro ro 3e a 0 I � i O ro o0 V ZZ H W C Q) 4-1 H - 0 D- •U s C a ro N Q) Ilp x a l a l U r a I Fl r r O Ch r U l N r l E-4 r r 0 a r 1 r I I U I U ro •N -ro c7 w �e C'1 ro >y a� a� � C - ro o- ro �N 4J U Ih C � O R NU to � c ro n - i UO i ' NU 0 w N +a 'N II s' {y e va�a, C - w C ro (4. ro� ro �I U a +-I U roc) - �- ao•tr ro •N c U aJ ro CZ •N O 'd N o � n U U n o Cl. (1) w •J � CU ro ca v 0. 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C U O Q) U O w N +-� 'N II �. c w cV ro C ro a ro� � H• U a U co O (z a O "Cl N •H C U 44 ro U C co OD n U a n o v w tZ) i.I CU ro ro U a 0.4-1 ro N ro ro NU� C U Q) L4 w Q�ro4-1 a •H u \ e 41 I~ � ma ti .. o0 3 C Q) d-J •N , x ro a 4� 4-4 C o Q) Q) 11 Q -Q) C-s Q) a�a February 27,1986 i H O ro ro to W U 1 1 t 1 I I 1 1 1 I r r 1 1 I I I I - �y ro 1 t -I 1 1 r •ry i I I I I 1 U 1 1= t I w 1 I O 1 11 1 %D 00 1 I R 1 1 1 1 • • I I I u1 to I 1' I M I M I i 1 f tr1 N I i I • • I 1• I • • - 1 u1 i -u1 1 I tf'1 u1 1 f I I \0 00 1 t I b0 1 I • t ! • • I ! f' •y I 1 u1 I 1' to u1 I t t I M I M I I- to ^ I I tT 1 1 • 1 • 1 1• • 1 I • f 1 u1 I- t11 1 i u1 to I ! u1 • I •� ! 1 I i w 1 1 I •y 1- I I f .� 00 I 1 f. O t 1 to 1 I u1 u1 1 1 w( I w w l 1 } i M} M t t 1 I u1 ►� i 1 D\ I • • t t • ► I I I • • I u1 I to 1 I to u1 1 I W) t Q4 O a C O .ly dJ \ro O 4.j .0 O O 1" U a O r~ a ti 1 1 • I 1 ul, I. 1 1 1 I M t M• 1 1 '. • I • I I to I u1 t 1 1 1 i f t 1 1 1 , i C0.7 t V I lU l � w i 1 1 I \0 00 1 1 t_ 1 I 1 I • • 1 1 1 f I I I w w tr) ^ l 1 I • • I 1 • 1. I to 1 1 I 1 tr1 1 I 1 1 1 1 t I F, I 1 I I O t I Q + Q I E- ! U I 1 I •t + 1 I 1 I 1 + ► b0 1 1 I ! C 1 1 i 1 •ry f t 1 I 't7 ! ! I I t 1 I 1 w •e C •'1 ' 1 I I r ro *I r 1 I 1 ti ro 1 t ► a > + 1 I t. r~a • 44 C O- 1 I i 1 1 ZI44 -- I I t t U 1 I i 1 II Z I 1 1• i 1w 44 1 •+ I + vs' ro 1 I I 1 w 0 I. 1 1 t OD 1 I 1 f C t I I i ro lI - 1 l 1 I •C I r I 1 U 2 C 1 1 ! 1 O w 1 1 r 1 N 41 ! i I � •ry - 1 1 I d 1 C C &0 Q. ro z U I I ! 1 Q. PI U ca -C 1 1 1 r Q O C. 1• t 1 1 tU'ry C 1 I i i U 4-1 ro I 1 + I n U •I 1 1 1 Q, II O ! 1 r ! U 4 O 1 1 I 1 w '►7 �.1 C U ro f ! 1 I ro U 1 t 1 1 +�I n 'ry• I I 1' I Q, Cy tl.l 1 1 i t ro °ry 4 1 I ! I ro Iv Q). Q) ro 4.1 1 ! 1 Q. 1 � Q. •N t cy I E� ► r n \ � 1 rv'Iv Q Ucu cu ti .. E , co 3 C N N' •y ro C + N aJ 'y Crow Iz�coz •y .a 'ti 4.1 � a.t >•L O .O w _ k 3 ,u O H •N a.t O It - $: ro 4Ji a h CL. February27,1986 f i • MITIGATION MEASURES C-5 Water Resources . (Groundwater) 5.1 Prior to issuance of grading permits, the applicant shall submit a shallow groundwater report prepared by a geologist or civil engineer. The report shall. indicate how groundwater levels will be maintained at .or below five feet of the surface. All actions necessary to -accomplish groundwater control shall meet with the approval . of the Manager of Inspection Services, and be reflected on grading and landscape plans, as appropriate, prior to permit issuance. 5.2 Prior to issuance of permits of use and occupancy, all improvements required to control shallow groundwater levels shall be installed and functioning. (Master Plans of Drainage) 5.3 All developers shall participate in the appropriate master plan of drainage in a manner meeting the approval of the Director - of Community Development. Participation may include the construction of master plan facilities and/or dedication of rights-of-way.and/or-payment of drainage fees. (V.E. 700.2 [6],, V.E. 733.5 [7]) 5.4 All development shall conform with any measures adopted by the City of Irvine which implement the 208 Water Quality Program. (V.E. 736.4.[16]) 5.5 Prior to issuance of a grading permit, a siltation control program and plan for the proposed development shall be approved by the City Engineer.. (Standard Subdivision Condition 2.3). 5.6 Prior to recordation of a final map, the subdivider shall post with the Community Development Department, a cash deposit to guarantee sweeping of streets affected by construction activities. The amount of the deposit shall be determined by the City Engineer. (Standard Subdivision Condition 1.2) Febmary 27,1986 all • C-5 (Cont) Water Resources (Master Plans of Drainage) 5.7 Prior to recordation of a final map, the subdivder shall pay all fees- as specified by the City's Master -Plan of Drainage and all applicable "Areas of Benefit" charges. (Standard Subdivision Condition 13j 5.8 Private parking areas and drives shall be swept as frequently as the city sweeps local public streets with a street sweeper which is a's.,effective as those used by the city. (V.E. 736.4 [17]) 5.9 Temporary soil stabilization measures shall be provided for cut. slopes 2-1/2:1 and steeper which are five feet or more in'height, and fill slopes 2-1/2:1 and steeper which are three feet or more in height. Netting, jute mesh, excelsior matte, or other similar material shall be used - in accordance with the requirements of the City's Landscape Manual. (Landscape Manual page 39, item # 5 and page 43, item # 6) February 27,1986 4 � A � V a � s �1 V a Q C4 Da P4 v h �o O I H ci QC ww � C~ ati z C-q 0. 0. O CLC v ro oa U � i I I 4 I .H r C v I v rA C ro ro H a v v 0. I � 1 N • 1 t ! I N• I N i' I I 1 I • t '• I I I I 1 h 1 I a 1 I i j 1 I l 0. 1 I I ry I I l U I I I I 1 C-4 I I I I 1 I I I I I I I b I I I I I I I I i . I I I .I I I I I I I I I I I I I I d I I I I I I I I I' I I I I I I I I I I I I I I I I' I I I - U 'ebauar I t I I I 1 1 , I I 1 I 1 I I I 1 1 1 I I 1• I I I i I I I I I I I I I I I t I I I I I I I I' I I I I I I I 0 U y 27,15 00 a ro i~ c� ca �I v as v v 4-1 C ra O Ca U II C I � � O C � w O vU ro 11 c, z ' O • NU C O w N 41 •H � ii S U ti' C U v ro N 11, Iy w v U C co U ca a�°n ca- Q +�aro - a0 N •H v U r4 C H U 4-4 lynw U 0. ca w :Z) U C U 'H Co a a� m ro U v N w C U U] v 1- C7 ro •H 0. n\+-4 +1 v ol co s,, 60 •h C 3 •H O v 'G1 Q) C x ca 4-i C w O Q) v If 8 ro � ro a�CL4 86 v i 1 to x O a C O 'H 4J ro a� 4,j b N O $4 U a s~ C M 1 N I M 1.0 1 1 N 1 N 1 1 1 1 I M • I M I I I 1 • I I I I • 1 1 • I I 1 I I I 1 I I 1 I I I i I I I I 11 I 1 1 11 I IZ, I 1 I I I I 1.0 1 E-+ i 1 I ! L1, I C'' 1 0., 1 a 1 I I U I h 1 IZ, I C� I U I N 1 H I 1 v 1 ,U C� I U I N I Izi: I I I 1 1 by 1 C, 1 'H 1 b 1 ro I � � 1 I � • I C �+� C 1 ro o 1 ro •H 1 � � I U 1 � I o 4.1 t C 1 w O 1 NU i C 1 ro II I O 1 NU C I O " N 4.) •H I N Q. .0 1 � 1 w lty 1 C U) M. I ro� o I IS. H U roa .0 C 1 N •H C U 4J ro 1 Ob�O I O' I u U 1 � I U 1 CU ro II Co U 1 � ry " •H ii 1 ro °H 1 �Z-- 4-j I ro I I, O I N O U I C U i O• � w 1 U ro i O II 4- 1 U 1~ 1. Q. U N I C5 ro a s~ . ..F to 3 C N N 'H •H > b > 'H �I N •I-1 •H � as 4 C O w h 4.j � n E a �+ -a ti - Febtuary 2'1,1986 0 i to V D •O • 04 a m Im 44 o CQ a%, p O c ro a Ln 1 �• I C I 1 1 I 1 In I 1 • I • 1 I r I 1 • I I 1 I 1 1 I I I I 1 I 1 I I I a I 1 a I I U 1 I h I I 1 a I f 10 ly 1 I I a I I: O L„. co v � o u) tx o ro c co to 1 I I 1 I i c I 1 b I I ti I I I 1 � I I •• I I ro>~ I I Q1 I 1 s~ a I 1 N I I •+J c I- I ro o 1 ca I �4-3 I U ! I � I c i 1 w Q 1 to,— - I c ca 11 f U� I O I OU t c N 4.4 I' 'N I if E 1 f,y o I U N 1 Na U 1 c ro I' c to 07 I roZ� c 1 T-I U . U 1 roo 1 � c 1 a. o Ti 1 U4-i-ro c•N _1 I O .'La N I U c EQ f n U 1 4-4 I a 11 0 1 U r a v wt 4 1 cU ro t ro U CL, Q. 4-4 1 ro 'N 1 ro Q) Q U 1 C U I U � I C7 ro 4-1 t a 'N Ito 11 �, 8 U I U 4.3 L-q aU.m t U ca 3 c - QI O •N N •1-� •rl x ro c 4J w c If 6 v r~ ar February 27,1986 • i � r .ti co cn � ► U ► U C� ► U � N .t C—� I � ► U � U February 27.,1096 • i cIQ) O a 0 'H 4-1 \ ro Q) Q) b o ly U t~ ti CD 00 00 t 1 1 ao 1 co I I I I I I • t . I I I I I I �D I �O • 1 1 I I I I t 1 1 I 1 I I 1 ! 1 I Iy l l O fJ 10. I U I (� t ly I 1' Z-- I I I I d I I I I bD I C I I � I - •1 ro I I � I 1 C7 I 1 - w •. I ro I ► _ � al I I a > I 1 O I O - 1 +s; cz 1 ro N . 1 U 1 � ! I � I w O I bD v c I ro n 1 .0 t U � �1 O I Iv U 1 � I Q w - 1 N •I-1 I 'N I II 8 N 0. I w a� ro . I C W a I co D O I ^t U 1 Q ^I U I R1 O t 4-1 c O •H C 1 U 4J ro t U C V) t O � I � � a II O I U- r a a� I ro U ro °H I ro a 1 � ^I U • 1 ro N 'U I tz U I Q) w 1 a •H `7 I U I U 4 a U a� I C7 �ro Q. - 3 C N N N U 4-3 N ro � 4.1 4y � o ) t a� aha February 27,1986 ILI I I 1 I 1 t •� 1 � cn I 1 1 I I 1 I I H I I 1 1 1 I I I U 1 I I t 1 1 I 1 I • I • 1 I � I I 1 • I I� 1� I I I- I I� •I b 1 I 1 I 1 I O 1 I O ! � 4-1 Jz I cu to 1 U •H t I I I 4.1 I Oh I •H I • tq 1 �O O I I N 1 I 4.) I H I f I y i I 1 � I "rz 8 i It, H I a ZI 1 I N I I 1 • I 1 f 1 I 1 1 1 1 1 1 1 1 1 1 I i 1 I I 1 I 1 I 1 1 1 I i I 1 I 1 I I 1 I I 1 i I 1 I I 1 I I I 1 1 I i 1 I I • I • I" i I 1 i • I • 1 I i t 1 I i I I 1 I• I I 1 1 I 1 I 1 I I I 1 I I 1 I I I 1 ! I I 1 I N" N 4J m co O Q441 � 'H C •a 24 co M � C C ro� x O •la 'C 4J ro >~ C U y ro ro� 'C 'c CO 1 1 1 I a0 I � 1 ro. I I _ w •. 1 ca ti 1 � N - a a I O I 93 I 4-j C 1 cn o I Co 'H I :zz 4.j i U I � I Z: m I C I w O I NU 1 to, — I C 1 ro 11 I .1Z I U .2 N U I � I O 1 N4 I 11 E i N a. v I C ro g� 1 ro .7= TI V" . 1 a. " U I ro 0 +J tr I a o 'ti I N H C I' U 4 ro I O 't7 N I U a to 1 n U 1 4:t I U I 0. N 41 CU ro I ro U � •H - I ro 'H I ::E: a.1 1 ro ti 1 ro roU I C U 1 9) ty w i C7 ro f :;2z a Q. 1 O u �, E 1 V I V 41 �., - a. U N I Ch ro :~ .. E_ , to 3 C •H � "C7' � 1,1 •H ce co 4-I C O N •• C-1 41 �I 'N O II 8 a F+ a. February27,1986 • i • cn . r4 V 04 Iz O tn a til 'N Q o WU 4-J H 0 H , • 1 • I I , I i • 1 • I 1 1 t i i I I 1 I I 1 I a I a, I v I C~ I a 1� t a► a a U I� l a I IV o C� C-4 I I C7 I U I N IE-1 I I U I U t U f- N I I I 1 t to I p I 'N I "G I ro I � I t • � • I H N 1 a I O - 1 � o -ro•N 1 t „ U I II O 1 !� t a 44 1 � O 1 f: 1 w O 7 OU i fao,— I ro. I ro u I � I O 1 N U 1 q t N +J 1 •N 1 II s t Na U 1 •• N ro I C •ro a I roo i 41 O I ao•lz, 1 U aJ ro I R 'N I O b N 1 U O , O � I n U 1 4:t 1 a II O t U I w •� dJ I ca 'U Co 1 ro U t a 4-a- 1 ro •N dJ I ro S-4 I N O U 1 p U I Q) �q w 1 Ch ro 4i I a •N I V a U N I C5 ro a .E,co, 3 C a1 N •N •N � •L1 N •a-1 N 9L, ro a 4y Ci o 0) w . h 4-1 ^t 'N U II s O h O a.-E-4 Q. February27,1986 ' r i s~ 0 a� ro .130 U •N tz 41 C O a.l ti O "i "- C O Co N a 'CI a� r.l 1 1 I 1 • 1 • 1 1 1 f i 1 1 I I 1 I 1 1 f 1 I 1 I I 1 I 1 I I I � t � Ch 1 V_ ► N t F, i � I `� 1 � February 27,1986 i • b C ro a •C 00 .H a 45 M M M 1 �-I I ti , 1 • 1 • -1 I i �o 1 1 _ \D I' 1 1 1 I - • I I 1 - 1 1 I I 1 I 1 I 1 i I- f • I • 1 i 1 •1 I 1 - I �O , �O I 1 1 February27,1986 S. i 4J JZ ro ca - I U ••H 41 R Q H N b @ ro a b v I u1 I U-1 I I I f ti 1 1 I • t • I I 1 • I I I I I ! I f ! t i I ! 1 I I I I I I I 1 I Ul 1 u 1• 1 v1 1 I I 1 I V) 1 ti I ti 1 I I 1 I ti I II t • I • t i ► 1 1 • I I 1 I ! i 1 t t 1 I I 1 1 I I Ei 11 U, t U C7 1 U I N N ti ro N a o ti >y O +1 0) a-J N co A4 1 1 1 1 ' � I � I 'H I b 1 ro. I � - I � 1 w o0 I ro �•'•i - 1 a > I 1 -ro - 1 ro 'N I - >•r 1 Q. 4-J I � � I � I w O 1 al U 1 to,. — co 11 I U � I O t NU I - G I O w I N 411 f 'hl I � f w Q ro 1 sr Ul Q. I ro;Z) O U I roO I � � 1 a O •L1 ' 1 U, 4-J ro 1 O N I U C 14 I O t-:) I if U I � 1 a if O v 1 qU Co 1 ro U 1 ro °M 1 N ,� •G 1 C U 1 N 1-4 w Co 4-) a •rl ! O if � a 1 V 4-j i4 1 ty U O I O ro a .. �, to 3 Q •N > b N +.3 H x ro• � 4,- Q:: 4 I IZ - O .4-1 v If e .h a February 27,1986 a i Gtl U x O til °H h 44 O R ti o co ©m D b C ro N i ► I t I ! t I I , I I I I 1 I ! I 1 1 ! ! 1 1 1 1 I 1 1 I 1 1 1 I I I I I 1 I I 1 I I t I t[1 I u1 I i • t • I - 1 I t 1 1 1 1 1 I I 1 I 1 i 1 1 1 1 I 1 I I I I 1 1 I 1 1 I 1 u"1 I u"1 1 1 • I • I' 1 ► ! I 1 1 I i 1 1 1 1 1 I 1 I 1 I i 1 ! I I f 1 t ! I 1 1 I 1 I I 1 I 1 I 1 i 1 1 I u1 i 41 I 1 �-•� I M 1 1 • I • i 1 1 I 1 1 1 I I 1 I I I 1 I t t ! i 1 I I I i I I 1 I I I I 1 I 1 I 1 1 1 1 1 In 1 v'1 1 I ry I ti 1- 1 • 1 • 1 1 %O 1 �o I I 1 1 1 I I i i 1 1 1 1 1 I 1 1 ! I •N O s~ Q) ro a, �a 44 N � Q) . .O E (a �a � I Na I 1 1 I�► M I t I 1 1 1 • I • I 1 I 1 1 I I 1 I I I 1 I i 1 I I I I I -! d 1 I a l 1 o a t a 1, UN l h l a l I U I V U' t U r I 1 1 I a0 I C I 'H I Co 1 � I 1 U' t w •e I a > I Q) 1 4-1 C 1 co O I ro 'H 1 4.3 1 U ► II O P Ir a 41 O 1 w 0 1 U i M�- 1 'C I ro a I AO 1 U I O 1 C I O w I N 4-1 1 'H 1 iy • .I U O• >, I Na.0 I C 1 w Q) ro I Cu)a I roa 1 ^1 U 1 CL. U I ro O 1 •1.1 ► a O b I U a- -ro I O It Q) I U C ro I O � I n U I � 1 Cl. If O I. .0 1 av ro 1 ro U I a a 4-I 1 ro 'H 4.1 I ro >~ I % 1 (1) t- roNU • i C U 1 41 jy w I CO 4.1 r a •H I U 4.J S-4 1 a U Q) 1: c� ro a s~ •, ,tjo. 3 C Q) Q) H •H > b > •H ^I QI • -j :H 1:4 ro +1 a 4-t C O w 4-1 �1 'H Q! C a Qa February 27;,1986 i 3 a • Cal I v'1 N 1 I I N I N I 1 I I ry 1 I 1 I 1 1 -I • 1 • 1 1 i 1 1 I I i 1 1 I I 1 1 t 1 1 1 1 1• 1 1 1 I 1 1 I 1 o Febmary27,1986 •M b Co w.. ro� r-q v O a� 4-1 c 0), )O Co 'H �43 U 11 � JJ w Q OU to, a ro 11 UZ O - NU Q w • N +-, •N 11 B jy a va�>, Na � ro w m ro a to a rotz) z • a. �I .0 co aob N •H C U 4-J ro U!r vOi • O � u U ry n o v n.. m aU ro ro U a w" ro •H, �:!i�41 ro is AI N N � U f: U w Ch ro 4J a •H I nee 4-J �4 a U N 3 C. N N 'H •N > b' 'H ^i N 4 H .w c 4-1 ro O N w h 4-j • N II •e QS- E--4 N aE-4Q i • En C4 CU 0 cig q) a U C E �J � V IS Co .H U O 04 cn M L" 1 1 by � 1 I I •ry 1 1 I 4J O 1 +�I I mo► I ► I I 1 I t 1 1 �, • I . I 1 ► 1 1 1 t 1 I 1 1 ► I 1 1 1 I 1 1 I f 1 I I 1 1 1 ► 1 1 I 1 1 ► 1 1 ► 1 ► 1 f .! 1 1 1 ► 1 I I ► 1 1 1 1 r a 1 1 0.► r 1 C� ► C-+ 0. C-, 1 a. 1 0.► �: E4 a� �v a u� do ro N N O A Q Ce, N R � 6 H February 27,1986 0 • • O O 4J "IZ ro to v •� 9 'CI C ro a N N ti N February 27;1986 0 . 6 cn Cal U O i 04Qj C r~ Q O C �1 O � V p 1 I I O 1 I 4J ,L 1 V •ry I I � 1 I 1 N I d.l •ry 1 • Vj 1 �O C I I O I I 4J 1 I C I I ly t I 1 I N ! I tq 1 I � 1 I 1 I 't; j • Q I I �1 • ,ro •ry I N 1 I I ti I I 1 • L4 4J C N N � I 1 1 N I 1 1 � I 1 I • I I 1 1 1 I 1 I I 1 1 a' 1 10., I I I ty I N February27,1986 • i • ro I I •H 1 1 U 1 1 ry t 1 1 ry 1 ti 1 i . • tn • N N �O t U1 1 v'1 I 1 I I I N I N I I 1 I �• 1 • 1 1 1 1 I • I •! P 1 1 ! 1 1 1 I 1 I 1 I 1 I 1 I ► I I ! ! 1 1 i I I 1 1 I t 1 ! ! ► 1 E, I a I Ch l U 1 N t E, 1 1 U 1 I t , I �D I C 1 'd t ro 1 � I I C7 1 I w •. C'� f ror ! a. 1 N 1 �a C t roo ro �H 1 Z.,4 1 U 1 II C I � ! a 4.) i C I w O 1 NU I C t .0 I U � I O' 1 �U I C 1 O w 1 N4 Na U 1 t: 1 w N ro I C VI a. 1 r-1 U a n U (Tj O 1 � C I C•'N 1 O"'tl N 1 vC�n 1 o a 1 it 'U 1 W i ,y 11 O t U 1 a N. I, w tz) -W I CU ro 1 cd U i iy a •rr 1 ro •N 1 :-i- 4-1 I fti � N 1 N " Q3 1 C V 1 Q) 1~ w 1 C7 ro J-) 1 a •H 4.J U Ili I ro a 1~ a C N N•'N •N � 'L1 w C It 8 a Ems. 4 February 27,1986 i • H 1 1 I I I I O 1 I I I •» e t 1 I ro 'N 1 I I I 00 1 00 1 1 • I • I I \0 1 �o I O_ a O •rl ro m 4' b a1 O t'' � a a1 41 R ti 1 I 1 I 1 I ti 1 O� I t O 1 00 1 1 ! 1 1 1-4 1 O I t I ti l l 1" 1 1 I I N I ,1 1 1 • t • 1 ! t I i• I • t • 1 t 1 I 1 1 t 1 1 I 1 1 1 ! 1 1 1 I 1 1 1 I I 1 t I ly ! ry l I V! I r I a h I I I 1 i N I h l :j I m . 1 1 I . 1 N, N R 1 t • °N I ro 1 N to C7 1 CV N ee t • • w 1 ro H' I N N N Q) t cq O - 1 M \0 iv 1 N N U I. • • If I 4 a.i 1 w w .t"„• Ui 1 N to 1. I N N w 0 to t I: i w w to II ! 0�7'f� •C I N N N V f • . • Q 1 1 t;• I O w I cn\0 I N N II 6 I • w iy e 1 w w C: • t N 'u1 •• . Q) �fJ' I (V N 4 "Ea M. I rot:5 1 �o 1.0 >~ v f w w 0.7 Q I o �7• r\ it '�" I. N'NN 0.0"t1 t • • • Q) •N' C I \0 10 %0 U 4J ro 1 Q 'N , f• U Q cn I MHO OD I N N II V I • • tN 4 if O I U - f w a Q) ! N U'1 •• D � I N N Q G ro t td U i �O �O �+{ w •ty . 1 CA.. a tI I w w tty •rt :Z� 44 I N N N ro �q I • • i iy H 1 q U I ro •41 CL4 i :;Z 4 N I Q u � 8 1 U U 4.3 >~ ; co ti 3 C Q) Q) rI •N � 'CI 'N H Q) 4.1 'H all ro 4 W �+ a E4 4 0 8 aha• Feb>uary27,1986 • ro •rl U N a- i � ► v� r4 fV o 1* N N CV N M \O N N o1*N N N N M �o N N \D z N U'1 N N 10 \o N Ull) N N 1� 1� O� GT I • I � 1 1 1 1 IalUlr~ral�'o i l U I N ► H 1' U' U 1 i I I I 1 ro a� a� O � a� c� to l M to co Co O ti ro o UCT� February27,1986 • MITIGATION -MEASURES C-6 Biotic Resources 6.1 Concurrent with the submittal of an application for a concept plan or change of zone, the applicant shall also submit an open space management and conservation plan to the Director of Community. Development. This plan shall be prepared in accordance with the guidelines included in Appendix B of the Environmental Review Matrix. Preparation of the plan should include consultation with the California Department of Fish and Game through required notification process (Sections 1601 - 1606,.California Fish and Game Code) and the U.S. Army Corps Engineers,.(COE) permit process (Section 404, Clean Water Act), if applicable. The plan shall address each of the following resource topics as outlined below. Regionally Significant Oak Woodland/Savannah The plan shall, identify/delineate the extent of existing oak woodland and savannah habitat, and provide specific_ guidelines to preserve in place as permanent open space. The plan shall also, address additional protective actions, such as: o Setbacks and edge screening of adjacent. development to allow continued, use of entire habitat available by wildlife; o The use of fencing, and other means of controlling access and disturbance to maintain values; o Diversions or control of increased flood runoff from adjacent and upstream urban developments to prevent the scouring of bottom and bank vegetation; o Maintenance of existing water supply, for the continued support of habitats. February 27, 1986 • C - 6 (Cont) Biotic Resources Prime Bird of Prey Foraging/Wintering Areas The plan shall preserve large blocks of grassland (20 acres and greater) and open brushland foraging areas, (50 percent of the site at a minimum) as permanent open space. To achieve the maximum value, this area should be contiguous and not broken up by roads or scattered, dwellings; therefore, clustering of development with interspersed open space of the type described above is preferred, Where prime nesting/roosting sites are also present, these areas should also include the spatial buffer zone recommended for that resource. Artificial clearing of areas to create forage may be used, providing revegetation with .grasses and low, open . brush species is accomplished immediately following clearing activities. Prime Bird of Prey Nesting/Roosting Areas -The plan shall identify/delineate prime- oak/riparian woodland and cliff nesting and roostings sites and preserve as permanent open space. In conjunction with prime bird of prey foraging/wintering areas, establish spatial buffer/feeding zones for a distance of 112 mile, around nesting/roostings sites, and preserve .as permanent open space.' If necessary, clear portions of this area, especially -in canyon bottoms, of dense brush � to maximize its value as forage to birds of prey (this could be done as part of fuel'modification procedures). Use buffer zone edge treatments to discourage or prohibit access to nesting and roosting areas. Methods up to and including fencing should be considered; natural barriers, such as rugged terrain and dense vegetation should. also be taken into account. A qualified biologist or DFG should be consulted, if necessary on a site specific basis. Major Wildlife Movement Corridors The plan shall preserve vegetation along contiguous corridor in canyon bottoms. These corridors should generally conform to native vegetation existing along drainages, including riparian habitat, oak woodland and dense brush. Minimum width. should be 300 feet, unless existing vegetation is narrower, in which case additional buffer areas should be provided in the form of bordering greenbelt/recreation open space areas. Fencing or otherwise controlling access is not necessary, however, there should be no extensive clearing of vegetation within the corridor. If clearing is required for road crossings fire safety clearance, etc., landscape materials should be introduced for screening and/or widening the corridor to retain the corridor's original value. February 27,1986 C - 6 (Cont) Biotic Resources Woodland/Brushland/Grassland Ecotone. The plan shall identify/delineate and preserve 60 percent of brushland and grassland habitats, according to the following guidelines: o Retain in large (20 acre minimum), contiguous habitat configurations. o Retain corridors/links of native vegetation between habitat enclaves: o Include oak/riparian buffer zones as a portion of area preserved. o Place lowest intensities of use, greenbelts, recreation open space adjacent to preservation areas. 6.2 Concurrent with the submittal of an application for ,a concept plan or change of zone, the applicant shall also submit anopen space management and conservation plan to the Director -of ' Community Development. This plan shall be prepared in accordance with the guidelines. included in Appendix B of the Environmental Review Matrix. Preparation of the plan should include consultation with the. California Department of Fish and Game through required notification process (Sections 1601 - 1606, California Fish and Game Code) and the U.S. Army Corps Engineers (COE) permit process (Section 404, Clean Water Act), if applicable. The plan shall address each of -the following resource topics as outlined below. Regionally Significant -Oak Woodland/Savannah The plan shall identify/delineate the extent of existing oak woodland and savannah habitat, and provide specific guidelines to preserve in place as permanent open space. The plan shall also address additional protective actions, such as: o Setbacks and edge screening of adjacent development to allow -continued use of entire habitat available by wildlife; o The use of fencing and -other means of controlling access and disturbance to maintain values; February -27, 1986 C - 6 (Cont) Biotic Resources 0 o Diversions or control -of increased'flood runoff from adjacent and upstream urban developments to prevent the scouring of bottom and bank vegetation; is o Maintenance -of -existing water supply for the continued support of habitats. Woodland/Brushland/Grassland Ecotone The plan shall identify/delineate .and preserve '60 percent of brushland and grassland habitats, according to the following guidelines: o Retain in large (20 acre minimum); contiguous habitat configurations. o Retain corridors/links of native vegetation between habitat enclaves. o Include oak/riparian buffer zones as a portion of area -preserved. o Place lowest intensities -of use; greenbelts, recreation open space adjacent to preservation areas. 6.3 Concurrent with the submittal, of an application for a concept .plan or change of zone, the applicant shall also submit -an open space management and conservation plan to ,the Director of Community Development. This plan shall .be prepared in accordance- with the guidelines included in Appendix B -of the Environmental Review Matrix.. Preparation of the plan should include ' consultation with the California Department of. Fish and Game through required notification process (Sections 1601 - 1606, -California Fish .and Game Code) and the U.S: Army Corps Engineers (COE) permit process (Section 404, Clean Water Act), if applicable. The plan shalladdress each of the following resource topics as outlined below. Regionally Significant Oak Woodland/Savannah The plan shall identify/delineate the extent of existing oak woodland and savannah habitat, and provide specific guidelines to preserve in- place as permanent open space. February 27.1986 C - 6 (Cont) Biotic Resources The plan shall also address additional protective actions, such,as: o Setbacks and edge screening of adjacent development to allow continued use of entire habitat available by wildlife; o The use of fencing and other means of controlling access and disturbance to maintain values; o Diversions or control of increased flood runoff from adjacent and upstream urban developments to prevent the scouring of bottom and bank vegetation; o Maintenance of existing water supply for the continued support of habitats. Major Wildlife Movement Corridors The plan shall preserve vegetation along contiguous corridor in canyon; bottoms. These corridors should .generally conform to native vegetation. existing along drainages, including riparian habitat, oak- woodland and dense brush._ Minimum Width should be 300 feet, unless existing vegetation is narrower, in which case additional - buffer areas - should - be provided in the form of - bordering greenbelt/recreation open space areas. Fencing or otherwise controlling access is not necessary, however, there should be no extensive. clearing of vegetation within the corridor. If clearing is required for road crossings fire safety clearance, etc., landscape materials should be introduced for screening and/or widening the corridor to retain the corridor's original value. Woodland/Brushland/Grassland Ecotone The plan shall identify/delineate and preserve 60 percent of brushland and grassland habitats, according to the following guidelines: o Retain in large (20 acre minimum), contiguous habitat configurations: o Retain corridors/links of native vegetation between habitat enclaves. o Include oak/riparian buffer zones as a portion of area preserved. o Place lowest intensities of use, greenbelts, recreation open space adjacent is to preservation areas. February 27,1986 C - 6 (Cont) Biotic Resources 6.4 Concurrent with the submittal of an application for a concept plan or change of zone, the applicant, shall also submit an open space management and conservation plan. to the Director of Community Development. This plan shall be prepared in accordance with the guidelines included in Appendix B of the Environmental Review Matrix. Preparation of the plan should include consultation 'with the California Department of Fish and Game -through required" notification process (Sections 1601 - 1606, California Fish and Game Code) and the U.S. Army Corps. Engineers (COE) permit process (Section 404, Clean Water Act), if applicable. The plan shall address -each of the following resource topics as outlined.below. Regionally Significant Riparian Habitat The plan shall identify/delineate the extent of existing riparian habitat, and provide speck guidelines to preserve in place as permanent open space. The plan shall also address additional protective actions, such as: o Setbacks and edge screening of adjacent development to allow continued use of entire habitat available by wildlife; o The use of fencing and other means of controlling access and disturbance to maintain values; o ' Diversions or control of increased flood runoff from adjacent and upstream urban developments to prevent the scouring of bottom and bank vegetation; o Maintenance of existing water supply for the continued support of habitats. Regionally Significant Oak Woodland and Savannah The plan shall identify/delineate, the extent of existing oak woodland and savannah habitat, and provide specific guidelines to preserve in place as permanent open space. Februa.-1 27,1986 C - 6 (Cont) Biotic Resources The plan shall also address- additional protective actions, such as: o Setbacks and edge screening of adjacent development to allow continued use of entire habitat available by wildlife; o The use of fencing and other means of controlling access and disturbance to maintain values; o Diversions or control of increased flood runoff from adjacent and upstream urban developments to prevent the scouring of bottom and bank vegetation; o Maintenance of existing water supply for the continued support of habitats. Prime Bird of Prey Nesting/Roosting Areas The plan shall identify/delineate prime oak/riparian woodland and cliff nesting and roostings sites and preserve as permanent open space._ In conjunction with prime bird of prey foraging/wintering areas, establish spatial buffer/feeding zones for a distance of ' 1/2 mile around nesting/roostings sites, and preserve as permanent open space. If necessary, clear portions of this area, especially in canyon bottoms, of dense brush to maximize its value as forage to birds of prey (this could be done as part of fuel modification procedures). Use buffer zone edge treatments to. discourage or prohibit access to nesting and roosting. areas. Methods up to and including fencing should be considered; natural barriers, such as rugged terrain and dense vegetation should also be taken into account. A qualified biologist or DFG should be consulted if necessaryon a site, specific basis. Major Wildlife Movement Corridors The plan shall preserve vegetation along contiguous corridor in canyon bottoms. These corridors should generally conform to native vegetation existing along drainages, including riparian habitat, oak woodland and dense brush. Minimum width should be 300 feet, unless existing vegetation is narrower, in which case additional buffer areas should be provided in the form of bordering greenbelt/recreation, open space areas. Fencing or otherwise controlling access is not necessary, however, there should. be no extensive clearing of vegetation within the corridor. If clearing is required for road crossings fire safety clearance, etc., landscape materials should be introduced for screening and/or widening the • corridor to retain the corridor's original value. February27,1986 • C - 6 (Cont) Biotic Resources Woodland/Brushland/Grassland Ecotone The plan shall identify/delineate and preserve 60 percent of brushland and grassland habitats, according to the following guidelines: o Retain in large (20 acre. minimum),. contiguous.habitat configurations. o Retain corridors/links of native vegetation between habitat enclaves. o . Include oak/riparian buffer zones as a portion of area preserved. o Place lowest intensities of use, greenbelts, recreation open space adjacent to preservation areas. 6.5- Concurrent with the submittal of an application for a concept plan or change of zone, the applicant shall also submit an open space management and conservation plan to the Director of Community Development. This plan shall be prepared in accordance with the guidelines included in Appendix B of the Environmental Review Matrix. Preparation of the plan should include consultation with the California Department of Fish and Game through required notification process (Sections 1601 - 1606; California Fish and Game -Code) and the U.S. Army Corps Engineers (COE) permit process (Section 404, Clean Water Act), if applicable. The plan shall address each of the following resource topics as outlined below. Rare. Endangered and Unique Species Habitat The plan shall identify/delineate the extent of existing habitat areas for rare, endangered and unique species and preserve in place as permanent open space: Biologists knowledgeable of the species in question shall be consulted to determine the need for additional species -specific actions, such as: o Screening and setbacks from habitat areas, as in the case of highly sensitive wildlife species, to allow continued use of entire .habitat available; February 27,1986 C - 6 (Cont) Biotic Resources 0 o The use of fencing or other means of controlling access. to habitat areas, as in the case of fragile flora or wildlife habitat. Regionally Significant Riparian Habitat The plan shall identify/delineate the extent of - existing riparian habitat, and provide specific guidelines to preserve in place as permanent open space. The plan shall also address additional protective actions, such as: o Setbacks and edge screening of adjacent development to -allow continued use of entire habitat available by wildlife; o The use of fencing and other means of controlling access and disturbance_ to maintain values; o Diversions or control of increased flood runoff from adjacent and upstream urban developments to prevent the scouring of bottom and bank vegetation; o Maintenance of existing water supply for the continues support of habitats. Regionally Significant Freshwater Marsh Habitat The plan shall identify/delineate the extent of existing freshwater marsh habitat, and provide specific guidelines to preserve in place as,permanent open space. The plan shall address each of the following resource topics as outlined below. o Setbacks and edge screening of adjacent development to allow continued use of entire habitat available by wildlife; o The use of fencing and other means of controlling access and disturbance to maintain values; o Diversions or control of increased flood runoff from adjacent and upstream urban developments to prevent the 'scouring of bottom and bank vegetation; • o Maintenance of existing water supply for the continues support of habitats. February 27,1986 is C - 6 (Cont) Biotic Resources Open Water/Shoreline with Regional Significance as Waterfowl Habitat The plan shall - identify/delineate the extent of existing waterfowl habitat, -and provide specific guidelines to preserve in place as permanent open space. The plan shall.address each of the following resource topics as outlined below. o Setbacks and edge screening of adjacent development to allow -continued use of entire habitat available by wildlife; o The 'use of fencing and other means of controlling access and disturbance to maintain values; o Diversions or control of increased flood runoff from adjacent and upstream urban developments -to .prevent the scouring of bottom and bank vegetation; o Maintenance of existing water supply for the continues support of habitats. 6.6 Concurrent with the submittal of an application for a concept plan or change of zone, the applicant shall also submit an open space management and conservation plan. to the Director of Community Development. This plan shall be prepared in accordance with the guidelines included in Appendix B of. the Environmental Review Matrix. Preparation of the .plan should include consultation with the California Department of Fish and Game through required notification process (Sections 1601 - 1606, California Fish and Game Code)' and the U.S. Army Corps Engineers (COE) permit process (Section 404, Clean Water Act), if applicable. The plan shall address each of the following resource topics as outlined below. Re ionally'Significant Riparian Habitat The plan shall identify/delineate the extent of existing- riparian habitat, and provide specific guidelines to preserve in place as permanent open space. February 27,1986 C - 6 (Cont) Biotic Resources The plan shall also address additional -protective actions, such as: o Setbacks and.edgescreening of adjacent development to allow continued use of entire habitat available by wildlife; o The use of fencing and other means of controlling access and disturbance to maintain values; o Diversions or control of increased flood runoff from adjacent and upstream urban developments to prevent the scouring of bottom and bank vegetation; o Maintenance of existing water supply --for the continues support of habitats. Regionally Significant Freshwater Marsh Habitat The plan shall identify/delineate the extent of existing freshwater marsh habitat, and provide specific guidelines to preserve in place as permanent open space. The plan shall address each of the following resource topics as outlined below. o Setbacks and edge screening of adjacent development to allow continued use of entire habitat, available by wildlife; ' o The use of fencing and other means of controlling access and disturbance to maintain values;. o Diversions or -control -of increased flood runoff from adjacent and upstream urban developments to prevent the scouring of bottom and bank vegetation; o Maintenance of existing water supply for the continued support of habitats. 6.7 Concurrent with the submittal of an application for a concept plan or change of zone, the applicant shall also submit an open space management and conservation plan-to'the Director -of Community Development. This plan shall be prepared in accordance with the guidelines included in Appendix B of the. Environmental Review Matrix. Preparation of the plan should include consultation with the California Department of Fish and Game through required notification process February 27,1986 C - 6 (Cont) Biotic, Resources (Sections 1601 - 1606, California Fish and Game Code) and the U.S: Army Corps - Engineers (COE) permit process (Section 404, Clean Water Act), if applicable, The plan shall address each of the following resource topics as outlined below: Regionally Significant Riparian Habitat The. plan . shall identify/delineate the. extent of existing riparian habitat, and provide specific guidelines to preserve in place as permanent open space: The plan shall also address additional protective actions, such as: o Setbacks and edge screening of adjacent development. to allow continued use of entire habitat available by wildlife; o The use of fencing and other. means of 'controlling access and disturbance to maintain values; o Diversions or control of increased flood runoff from adjacent and upstream urban. developments to prevent the scouring of bottom and bank vegetation; o Maintenance of existing water supply for the continues support of habitats. 6.8 Concurrent with the submittal of an. application for a concept plan or change of zone, the applicant shall also submit an open space management and conservation plan to the Director of Community Development. This plan shall be prepared in accordance with the guidelines included -in Appendix B of the Environmental Review Matrix. Preparation of the plan should include consultation with the California Department of Fish and Game throughrequired notification process (Sections 1601 - 1606, California Fish and Game Code) and the U.S. Army Corps Engineers (COE) permit process (Section- 404, Clean Water Act), if applicable. The plan shall address each of the following resource topics as outlined below. Open Water/Shoreline-with Regional Significance as Waterfowl Habitat The plan shall identify/delineate the extent of existing waterfowl habitat, and provide specific guidelines to preserve in place as permanent open space. Febmary 27,1986 C - 6 (Cont) Biotic Resources The plan shall address each of the following resource topics as outlined below. o Setbacks and edge screening of adjacent development to allow continued use of entire habitat available by wildlife; o The use of fencing and other means of controlling access and disturbance to maintain values; o Diversions or control of increased flood runoff from adjacent and upstream urban developments. to prevent the scouring of bottom and bank vegetation; o Maintenance of existing, water supply for the continued support of habitats. Rare, Endangered and Unique Species Habitat The plan shall identify/delineate the extent of existing, habitat areas for rare, endangered and unique species and preserve in place as permanent -open space. Biologists knowledgeable of the species in question shall -be consulted to determine the need for additional species -specific actions, such as: o Screening and setbacks from habitat areas, as ,in the case of highly sensitive wildlife species, to allow continued use of entire habitat available; o The use of fencing or other means of controlling access to habitat areas, as in the case of fragile flora or wildlife habitat. 6.9 Concurrent with the submittal of an application for a concept, plan or change of zone, the applicant shall also submit an open space management and conservation plan to the Director, of Community Development. This plan shall be prepared in accordance with the guidelines included .in Appendix B of the Environmental Review Matrix. Preparation of the .plan should include consultation with the California Department of Fish and Game through required notification process (Sections 1601 - 1606, California Fish and Game Code) and the U.S. Army Corps Engineers (COE) permit process (Section 404, Clean Water Act), if applicable. February27,1986 • C - 6 (Cont) Biotic Resources The plan shall address"each of the following resource topics as outlined below. Rare. Endangered and Unique Species Habitat The plan shall identify/delineate the extent of existing habitat areas for rare, endangered and unique species and preserve in place as permanent open space. Biologists knowledgeable of the species in question shallbe consulted to determine the need for additional species -specific actions, such as: o Screening and setbacks ' from habitat areas, as in the case of highly sensitive wildlife species, to allow continued use of entire habitat available; o The use of fencing or other means of controlling access to habitat areas, as in the case of fragile flora or wildlife habitat. 6.10 Concurrent with, the submittal of an application for a concept plan or change of zone, the applicant shall also submit an open space management and conservation plan to the Director of Community Development. This plan shall be prepared in, accordance with the guidelines included in Appendix B of the Environmental Review Matrix. Preparation of the plan should include consultation with the California Department of Fish and Game through required notification process (Sections 1601 - 1606, California Fish and Game Code) and the U.S. Army Corps Engineers (COE) permit process (Section 404, Clean Water Act), if applicable. The plan shall address each of the following resource topics as outlined below. Regionally Significant Riparian Habitat The plan shall identify/delineate the extent of existing riparian habitat, and provide specific guidelines to preserve in place, as permanent open space. The plan shall also address additional protective actions, such as: o Setbacks and edge screening of adjacent development to allow continued use of entire habitat available by wildlife; February 27,1986 C - 6 (Cont) Biotic Resources o The use of fencing .and other, means of controlling access and disturbance to maintain values; o Diversions or control of increased flood runoff from adjacent and upstream urban developments to prevent the scouring of bottom and bank vegetation; o - Maintenance of existing water supply for -the continues support of habitats. Oak Woodland and Savannah - The plan shall identify/delineate the extent of existing oak woodland and savannah habitat, and provide specific guidelines to preserve in place as permanent open space. The plan shall also address additional protective actions, such as: o Setbacks and -edge screening of adjacent development to allow continued use of entire habitat -available by wildlife; o The use -of fencing and. other means of controlling access and disturbance to maintain values; b Diversions or control of increased flood runoff from adjacent and upstream urban developments to prevent the scouring of bottom and, bank vegetation; o Maintenance of existing water supply for the continued support of habitats: Prime Bird of Pre, Foraging/Wintering Areas The plan shall preserve large blocks of grassland (20 acres and greater) and open brushland foraging areas (50 percent of the site at a minimum) as permanent open space. To achieve the maximum value, this area should be contiguous and not broken up by roads or scattered dwellings; therefore, clustering of development with interspersed open space of the .type described above is preferred. Where prime nesting/roosting sites are also present, these areas should also include the spatial buffer zone recommended for that resource. Artificial clearing of areas to create forage may be used, providing revegetation with grasses and low, open • brush species is accomplished immediately following clearing activities.. - February 27,1986 C - 6 (Cont) Biotic Resources Prime Bird of Prey Nesting/Roosting Areas The plan shall identify/delineate prime oak/riparian woodland and cliff nesting and roostings sites and preserve as permanent open -space. In conjunction with prime bird of prey foraging/wintering areas, establish spatial buffer/feeding zones for a distance of 1/2 mile around nesting/roostings sites, and preserve as permanent open space. If necessary, clear portions of .this area, especially in canyon bottoms, of dense brush to maximize its value as .forage to birds 4 prey (this could be� done as part of fuel modification procedures). Use buffer zone edge treatments to discourage or prohibit access to nesting and roosting areas. Methods up to and including fencing should be considered; natural barriers, such as rugged terrain and dense vegetation should also. be taken into account. A qualified biologist or DFG should be consulted if necessary on a site specific. basis. - Wildlife Movement Corridors The plan shall preserve vegetation along contiguous corridor in canyon bottoms. These corridors should generally conform to native vegetation existing along drainages, including riparian habitat, oak, woodland and dense brush. Minimum width. should be 300 feet, unless existing vegetation. is narrower, in which case additional buffer areas should be provided in the form of bordering greenbelt/recreation open space areas. Fencing or otherwise controlling access is not necessary, however, there should be no extensive clearing of vegetation within the corridor. If clearing is required for road crossings fire safety clearance, .etc., landscape materials should be introduced for screening and/or widening the corridor to retain the corridor's original value. Woodland/Brushland/Grassland. Ecotone The plan shall identify/delineate and preserve 60 percent of brushland and grassland habitats, according to the following guidelines: o Retain in large (20 acre minimum), contiguous habitat configurations. o Retain'corridors/links of native vegetation between habitat enclaves. o Include oak/riparian buffer zones. as a portion of area preserved. Febmary 27,1986 • C - 6 (Cont) Biotic Resources o Place lowest intensities of use, greenbelts, recreation open space adjacent to preservation areas. 6;12 Concurrent with the submittal of an -application for a concept. plan or change of zone, the applicant shall also submit an open space management and conservation plan to -the Director of Community -Development. This planshall be prepared in accordance with the guidelines included.in Appendix B of .the Environmental Review Matrix. Preparation of the plan should include consultation with the California Department of Fish and Game through required notification process (Sections 1601 - 1606, California Fish and Game Code) and the,U.S. Army Corps Engineers (COE) permit process (Section 404, 'Clean Water Act), if applicable. The plan shall address each of the. following resource topics as outlined below. Buffer Areas The plan shall retain 20 percent of buffer area in its existing condition, preferably by preserving natural open space -adjacent to borders or areas possessing high sensitivity. Where required, fuel modification, zones employing a 'graduated clearing approach may make up a portion of the buffer zone. Recreation open space, agriculture and greenbelts may also be substituted as..a portion .of the zone however, dense tree and shrub plantings at the edge of areas of high sensitivity should be included. Overall this zone should provide .a 300-foot development setback from the edge of high ecological sensitivity areas. 6.13 Concurrent with the, submittal of an application for a concept plan or change of zone, the applicant shall also submit an open space management and conservation plan to the Director of Community Development. This plan, shall be -prepared in accordance with the guidelines included in Appendix B of the'Environmental Review Matrix. Preparation of the plan should include -consultation with the California Department of Fish and Game through required notification process (Sections 1601 - 1606, California Fish and Game Code) and the U.S. Army Corps Engineers (COE) permit process (Section 404, Clean Water Act), if applicable. The plan shall address each of the following resource topics. as outlined below. February 27,1986 C7 C - 6 (Cont). Biotic Resources Buffer Areas The plan shall retain 20 percent of buffer area in its existing condition, preferably by preserving natural open space adjacent to borders or areas possessing high sensitivity. Where required, fuel modification zones employing a graduated clearing approach may make up a portion of the buffer zone. Recreation open space, agriculture and greenbelts may also be substituted as a portion of -the zone however, dense tree and* shrub plantings at the edge of areas of high sensitivity should be included. Overall this zone should provide a 300-foot development setback from the edge of high ecological sensitivity areas. Link Between Habitat Areas -of High Significance and Locally Significant Habitats The plan shall retain 20 percent of this area as natural open space in the form of a network of contiguous corridors, preferably around and along drainage courses. Individual corridors to be retained in natural condition must be no less than 100 feet wide in order to be effective. Locally Significant Stands of Native Vegetation/Other Vegetation The plan shall retain 20 percent of this vegetation as natural open space in the form of a network of contiguous corridors, preferably around and along drainage courses. Individual corridors to be retained in natural condition must. be no less than 100 feet wide in order to be effective. Eucalyptus, windrows and the oak trees along Sand Canyon Avenue shall be considered in accordance with the City's Eucalyptus Windrow Policy. 6.14 Concurrent with the submittal of an application for a concept plan or change of zone, the applicant shall also submit.an open space management and conservation plan to the Director of Community Development.. This plan shall be prepared in accordance with the guidelines included in Appendix B of the Environmental Review Matrix. Preparation of the plan should include consultation with the California Department of Fish and Game through required notification process (Sections 1601 - 1606, California Fish and Game Code) and the U.S. Army Corps Engineers (COE) permit process (Section 404, Clean Water Act), if applicable. February 27,1986 • C - 6 (Cont) Biotic Resources The plan shall address each of the following resource topics as outlined below. Buffer Areas The plan shall retain 20 percent of buffer area in its existing condition, preferably by preserving natural open space adjacent to borders or areas .possessing high sensitivity. Where required, fuel modification zones employing a graduated clearing approach may make up a portion of the _ buffer zone. Recreation open space, agriculture and greenbelts may also be substituted as a portion of the zone however, dense tree and shrub plantings at the edge of areas, of high sensitivity should be included. Overall this zone should ,provide a 300-foot development setback from the edge of high ecological sensitivity areas. Link Between Habitat. Areas of High .Significance and Locally Significant Habitats The plan shall retain 20 percent of this area as natural open space in the form of a network of contiguous corridors, preferably around and along drainage courses. Individual corridors to be retained in natural -condition=must be no less than 160 feet wide in order to be effective. 6.15 Concurrent with the submittal of an application for a concept plan or change of zone, the applicant shall also submit an open space management and conservation plan to the Director of Community Development. This plan shall be prepared in accordance with the guidelines included in Appendix B .of the Environmental Review Matrix. Preparation of the plan should include consultation with the California Department of Fish and Game through required notification process (Sections 1601 - 1606, California Fish and Game Code)- and the U.S. Army Corps Engineers (COE) permit process (Section 404, Clean Water Act), if applicable. The plan shall address each of the following resource topics as outlined below. Open Water/Shoreline with Regional Significance -as Waterfowl Habitat The plan shall identify/delineate the extent of existing waterfowl habitat, and provide specific guidelines -to preserve in place as permanent open space. February 27,1986 • C - 6 (Cont) Biotic Resources The plan shall address each of the following resource topics as outlined below. o Setbacks and edge screening of adjacent development to allow continued use of entire habitat available by wildlife; o The use of fencing and other means of controlling access and disturbance to maintain values; : o Diversions or control of increased flood runoff from adjacent, and upstream urban developments to prevent the . scouring of bottom and bank vegetation; o Maintenance of existing water supply for the continued support of habitats. Rare. Endangered and Unique Species Habitat The -plan shall identify/delineate the extent of existing habitat areas for rare, endangered and unique species and preserve in place as permanent open space. Biologists knowledgeable of the, species in question shall be consulted' to determine the need for additional species -specific actions, such as: o Screening and setbacks from habitat areas, as in the case of -highly sensitive wildlife species, to allow continued use of entire habitat available; o The use of fencing or other means -of controlling access to habitat areas, as in the case of fragile flora. or wildlife habitat. 6.16 Concurrent with the submittal of an application for a concept planor change of zone, the applicant shall also submit an open space management and conservation plan to the Director of Community Development. This plan shall be prepared in accordance with the guidelines included- in Appendix B of the Environmental Review Matrix. Preparation of the plan should include consultation with the California Department of Fish and Game through required notification process (Sections 1601 - 1606, California Fish and Game Code) and the U.S. Army Corps Engineers (COE) permit process (Section 404, Clean Water Act), if applicable. Febmary 27,1986 C - 6 (Cont) Biotic Resources The plan shall address each of the following resource topics as outlined below. Locally Significant Freshwater Marsh .Habitat The plan shall retain at least 80 percent of this habitat as natural open space. 6.17 Concurrent with the submittal of an application for a concept plan or change of zone, the applicant shall also submit an open space management and conservation plan to the Director of Community Development. This plan shall be prepared in accordance with the guidelines included in Appendix B of the Environmental Review Matrix. Preparation ,of the plan should include consultation with the California Department of Fish and Game through required notification process (Sections 1601 - 1606, California Fish and Game Code) and the U.S. Army Corps Engineers (COE) permit process (Section 404, Clean Water Act), if applicable. The plan shall address each of the following resource topics as outlined below. Locally Significant Riparian'Habitats The plan shall retain at least 80 percent of this habitat as natural open space. 6.18 Concurrent with the submittal of an, -application for a concept -plan or change of zone, the applicant shall also submit an open space management and conservation plan to the Director of Community Development. This plan shall be prepared in accordance with the guidelines included in Appendix B of- the Environmental Review Matrix. Preparation of the plan ' should- include consultation with the California Department of Fish and Game through required notification process (Sections 1601 - 1606, California Fish and Game Code) and the U.S. Army Corps Engineers (COE) permit process (Section 404, Clean Water Act), if applicable. The plan shall address each of the following resource topics as outlined below. Buffer Areas The plan shall retain 20 percent of buffer area in its existing condition, preferably by preserving natural open space adjacent to borders or areas possessing high sensitivity. Where required, fuel modification zones employing a graduated clearing approach may make up a portion of the buffer zone. Recreation open February 27,1986 l • C - 6 (Cont) Biotic Resources space, agriculture and greenbelts may also be substituted as a portion of the zone however, dense tree.and shrub plantings- at the edge of areas of high- sensitivity should be included. Overall this zone should provide a 300-foot development setback from the edge of high ecological sensitivity areas. Locally Significant Stands of Native Vegetation/Other Vegetation The plan shall retain 20 percent of this vegetation as natural open space --in -the form of a network of contiguous corridors, preferably around and along drainage courses. � Individual -corridors to be retained in natural condition must be no less than 100 feet wide in order to be effective. .6.1.9 All existing eucalyptus trees shall be accurately surveyed and plotted on subdivision maps and/or master plans. (Eucalyptus Windrow Preservation Policy, City Council Resolution 81-7) 6.20 All applications for tree removal permits shall include the filing of an environmental application and environmental clearance prior to permit approval in accorance with the City's CEQA Procedures. (Eucalyptus Windrow Preservation Policy, City Council Resolution 8.1-7) 6.21 Prior to, approval of a tentative map, the applicant shall submit a eucalyptus windrow report. in accordance with Appendix B' of the Environmental Review Matrix. (Eucalyptus Windrow -Preservation Policy, City Council Resolution 81-7) 6.22 Prior to the approval of a tree removal permit for eucalyptus or oak tree, an analysis of their preservation or removal including environmental clearance shall be prepared. The Director of Community. Development shall request the Tree Committee to examine the eucalyptus trees and make recommendations regarding preservation or removal. These recommendations shall be referred to the Planning Commission for their review. Removal may be approved by the Planning Commission under the following conditions: 1. That removal of eucalyptus trees will significantly improve the utilization of the property and the developer has provided satisfactory alternative landscaping. Febmary27,1986 C - 6 (Cont) Biotic Resources 2. That removal of eucalyptus trees will be for public benefits such -as but not limited to traffic or pedestrian safety, utilities, drainage, walkways, recreation and other visual amenities. 3. That "dead, dying and/or beyond repair" or infestation by pests, infection by- fungi and/or bacterial disease are given as reasons for the need to remove a eucalyptus tree, documentation of such conditions shall be provided to the Tree Committee for review and verification prior to permit approval. In addition, evidence must be provided that the condition of a tree is incurable. (Eucalyptus Windrow Preservation Policy, City Council Resolution 81-7) 6.23 Eucalyptus trees that are approved for preservation at the subdivision and/or site plan review state will require a tree removal permit, for any individual tree removals. Such permit - shall be issued by the Director of Community Development upon receipt of recommendation by the Tree Committee. (Eucalyptus Windrow Preservation Policy, City Council Resolution 81-7) 6.24 All approved tree removals,, trenching, pruning, and- other maintenance functions, shall be completed prior to grading in a windrow easement. (Eucalyptus Windrow Preservation Policy, City Council Resolution 81-7) 6.25 Tree removal shall include the entire tree unless the Tree. Committee's evaluation shows a reason to leave the stump:, (Eucalyptus Windrow Preservation Policy, City Council Resolution 81-7) 6.26 Eucalyptus windrow maintenance practices shall comply with the following standards: 1. Eucalyptus windrows shall be maintained in a manner that is compatible with motor vehicles, pedestrians, bicycles and adjacent structures provided initial plantings was in linewith principles of tree preservation. 2. All property owners shall be required to properly irrigate eucalyptus windrows on a continuous basis with particular attention being paid to the transition period of land development between agricultural use and development for non-agricultural purposes. Property owners shall .ensure that the trees stay in good biological and aesthetic condition. The irrigation system shall be compatible with the surrounding area. The February 27,1986 C - 6 (Cont) Biotic Resources 0 permanent irrigation systems shall be in accordance with the City's landscaping design policies. 3. All trees shall 'be selectively pruned to improve shape and health. Hazardous branches, week limbs and questionable double trunks shall be removed. The pruning sha * e .carried out with consideration given to the potential for future growth. 4. Developers shall irrigate, prune, treat, and maintain existing trees and. plant new ones. in such a way that when the eucalyptus windrow become City, association, or private property the eucalyptus trees will be in good biological condition upon acceptance. If necessary as determined by the City Arborist, trees must be treated by surgery and/or with fertilizers, and other chemicals.: Such treatments shall be .carried out by the developers with inspections by the City Arborist prior to final acceptance. 5. Prior to the start of pruning, a sample selection of trees shall be pruned by the developer. These sample trees shall -be subject to 'inspection by the• City Arborist to ensure adherence to recommended arboriculture practices. 6. Pruning, prior, to transfer of windrows to the. City, must be done 'by developers under specifications and inspection by the City Arborist. 7. Soil preparation for replanting prior to transfer of the trees to City, association, or private owner must be,�, done bydevelopers, under specification of and inspection by the City Arborist. 8. Prior to final acceptance of any windrow by the City, the Tree Committee shall .conduct a final_ examination of the trees to evaluate the developer's compliance with the City's maintenance, pruning and trimming policies. 9. Prior to any development, the developer shall be responsible for fencing the eucalyptus windrow maintenance easement (20 feet on each side of the centerline of the windrow) to insure that the easement is not utilized for storage `and/or dumping purposes and also to protect the tree roots from damage due to construction. 10. Whenever development results, in eucalyptus tree roots being exposed, the developer shall be required to take corrective measures under supervision and inspection 'by the City Arborist. February 27,1986 C - 6 (Cont) Biotic Resources 11. Pruning and all other maintenance of trees shall be under the ' supervision and approval of' the City Arborist upon the Tree Committee's recommendation. The City Arborist shall require the developer to submit the names of those who perform the task and proof of their qualification. 12. At the earliest possible stage of development review; approvals for those areas including eucalyptus windrows designated for preservation shall be conditioned with a note requiring irrigation of eucalyptus trees on a continuous basis during the review process and development. Developers shall install and maintain these irrigation system, subject to City supervision and inspection. (Eucalyptus Windrow Preservation Policy, City Council Resolution - 81-7) 6.27 Eucalyptus windrows identified for preservation shall comply with the following design standards: 1: Trees shall be topped to the following guidelines, unless alternate requirements are approved by the City. Arborist upon the- Tree Committee's recommendation.. Where the height of a tree exceeds the distance between the tree truck and an adjacent structure; such tree shall be topped to a height no greater than.the distance- to the closest structure or 40 feet whichever is greater. In no instance may a tree exceed 70 feet in height unless alternate requirements are approved by the CityArborist. 2. Trees which, with- the approval of the City Arborist, will remain over. 70 feet shall require selective pruning of excessive growth to reasonably insure health, safety and welfare of the trees and the public. 3. In all locations, a minimum area of 20 feet on each side of the centerline of the windrows shall be left as an easement for maintenance unless adequate easement has been provided subject to the approval of the Planning Commission. 4. The location of the eucalyptus windrow maintenance easement and the identification of those responsible for maintenance of same shall be designated on the subdivision map and it shall, be checked and verified for compliance at the time of master plan or conditional use permit review. February 27,1986 C - 6 (Cont) Biotic Resources 5. The curb -cut access to the eucalyptus tree maintenance easements shall be shown on subdivision maps, and cross sections shall be provided to show acceptable finished grade relationships between the maintenance easement and access entry points to ensure accessibility to - windrows during maintenance. These maps shall be reviewed by the Community Development Department to. assure a proper .grading plan prior, to the. issuance of a, grading permit. b. In all eucalyptus windrow maintenance easements, disruption of the root system will not be permitted within eight feet from the centerline of the windrow. In no case shall trenching other than for windrow irrigation systems be permitted within this area. Digging- of trenches and other operations which may damage eucalyptus tree toots in the windrow maintenance easement will require and encroachment permit and will be under City supervision and inspection. 7. In all eucalyptus windrow maintenance easements, no paving other than pedestrian and bicycle trains shall be closer than 15 feet from the centerline of the windrow. Where grading is necessary, 'construction shall not be closer than eight feet from the centerline of the windrow and such grading will ' require the prior approval of .the Director of Community Development upon receipt of recommendation by the -Tree Committee. 8. Root pruning may be allowed only if the need for it -has been clearly demonstrated. Should it be necessary, root pruning will be carried out at a distance between 8 and 15 feet from the centerline of the windrow and at a depth of four to five feet. Reduction of foliage areas must precede root pruning. 9. All replacement Trees are to be of a desirable species from a list of selected. eucalyptus trees. As a guideline, replanting shall be on approximately 20 foot, centers: and replacement trees- shall be no greater than one gallon container size. The planting holes shall not be dug with an auger. earth, basins must be constructed around replacement trees and shall be irrigated as necessary until they have become competitive with adjoining plants. 10. As a guideline, the distance between remaining trees in the windrow shall be 15 to 20 feet. However, in no case should healthy trees be removed merely to ensure such spacing: If the.distance between trees in a windrow February 27,1986 i 40 C - 6 . (Cont) Biotic Resources exceed 30 feet, new trees of a desirable species shall be planted by the developer in accordance with the guidelines to fill voids.- 11. Staking of any eucalyptus trees; replacement trees or off -shoots is not recommended. 12. Any proposed ground cover or shrub planting under eucalyptus trees shall be reviewed by the . City Arborist to ensure compatibility with the - eucalyptus trees. 13. Eucalyptus trees standing, upon private property, or property held in common by an association shall be maintained by the owner in conformance with the 'standards and policies for City trees. Modification may be allowed by the Tree Committee only . where it is shown that it is not physically or economically practical to comply with said policies. (Eucalyptus Windrow Preservation Policy, City Council Resolution 81-7) February27,1986 i a 'r1 A • I- ro 'H U v a a 11 1 Ch I I U 1 1 I I N I 1 I I I I l 1 I I i a l I I Z I I I M . N M N U N C~ h a ro� H v ro 4-1 v �I N U 4-JL4 O O Cl. CQ v x February 27,1986 'H 'd co c� cu �I v a> v tia v q cn o ro 'H 4-1 U II � a44 :z: m a w Q v U to", C co 'UO vU C N 4 II 8 U I., C U N ro N0._C1, w�N U Uo U rot�O ro c 4.j c ro Q. o - v •H N U 4J CO O T1 U 4-+ 0 0 u U co ry u v a, CO w Z U C U •H ro 4+ ro ti co ti " v v w a U Cp v kq 4-J C� ro •H a e it 1-1 I~ 4J v a Ua c) ro .. 4 to 3 •H N v 'ZI 'H 'H v 41 :3 x ro� 4-i C" w O aN [q Er 4-1 �I 'H v II E vh v aFlc, I* i to r4 U D O tn Ga a Z � I i 1 1 1 1 1 I I I 1 I 1 •M I 1 1 b 1 I I ro I t 1 I I , w •• 1 1 1 m -•I t 1 I a I 1 I Q) 1 I I Ql 4-1 c 1 1 , CO 'H t 1 1 4.3 I 1 t U CL� 44 1 1 ! C U 1 t 1 a0� ! 1 I C 1 I f- - • ro n I ! I •C t 1 1 O 'N 1 I , •H I. I 1 II Ei r 1 f N a U Q-) ro t 1 , cv)a 1 , 1 ro t� C U 1 1 I IY r-I U 1 I ! ro O 1 1 f a.l C 1 I ► a,ob- 1 1 I � Q) •N C I I 1 U 44 CO t t 1 U C z t f O D 1 , 1 4-1 1 1 I �L II O ! t I U I I I CL Q) 1 , w 'J 1! I I I C Q.) ro I 1 1 ro U w 1 t Q. a. 4-4 ! 1 t ro 'N I 1 1 ro I~ I 1 I C U ro 4.j u 3 C tq Q) Q) N Q) •N � b Q) jj •H x ro a 4i c Q) O Q) w N h 4-J C Q) 11 $ .k > �+ p Q) E-4 Q) February 27,1986 0 i • MITIGATION MEASURES C-7 Sand and Gravel Resources 7.1 Unless expressly permitted by village zoning regulations, sand and gravel operations shall be permitted only within an area designated. "development reserve," and then only upon the issuance of a conditional use permit approved by the planning commission. (V.E. 201) 7.2 Prior to concept plan or zoning approval, the applicant shall -submit an assessment . of the site's 'commercial sand and gravel potential. - This assessment shall be completed in concert with the General Geologic study required by MEA measures 2.1 through 2.5. The planning commission shall review this analysis, and if the commission determines the resources are of high commercial value and critical to sustain an adequate supply of local sand and gravel materials, the commission shall recommend to the City Council that the development plans designate the area .as a "resource reserve," and phase development to allow extraction of the resources. The above assessment may be waived -by the Director of Community Development if, based upon information on file with the City, existing local. sand and gravel sites contain adequate proven reserves to meet forecast demand. 7.3 Prior to concept plan or zoning approval for a project located adjacent to a sand and gravel operation, the applicant shall submit to the Director of Community Development an assessment of the compatibility of the proposed uses with the sand and gravel operation. If mitigation is required, the. study will propose measures necessary to reduce adverse effects to acceptable levels. The study shall include, but not be limited to, the following aspects: a. Exposure of the proposed uses to noise, and dust from extraction operations and truck traffic. b. Compatibility of project traffic with traffic associated with the sand and gravel operation. c. Visual impacts, access control and site safety. Prior to project approval the applicant shall demonstrate that 1) the, proposed uses will not impair the recovery of sand and gravel resources; and, 2) the sand and gravel operations will not be detrimental to the public health, safety or welfare of February27, i986 i C-7 (Cont) Sand and Gravel Resources those working or residing in the proposed project, or be materially injurious to properties or improvements in the vicinity. 7.4 Prior ,to approval of an application for a conditional use permit for a sand and gravel operation, the applicant shall submit the following for consideration by the planning commission in conjunction with their review of the application:. A. Plan of Operations 1. A master plan submitted in accordance with Section V.E. 803 et. seq. of the Zoning Ordinance. 2. Grading plans, including typical cross sections showing proposed excavation and cut slope contours to be created. 3. Phasing of extraction operations. 4. Hours of planned operations. 5. Fencing height, materials, and locations intended to screen the site and control access from -adjacent public and private -properties. 6. Signing plans in accordance. with Section V.E. 601 et. seq., of the Zoning Ordinance.. 7. Truck routing plan and traffic analysis-. 8. Parking provisions in accordance with Section V.E. 401 et. seq. of the Zoning Ordinance. 9. Drainage. and erosion control plans. 10. Dust control measures. 11. A noise assessment and control measures necessary to assure compliance with the City's Noise Ordinance and standards. February27,1986 C-7 (Cont) Sand and Gravel Resources 0 .. 12. Information required by the Hillside Overlay District (Section V.E. 502 et. seq. of the Zoning Ordinance), if applicable. B. Reclamation Plan and Schedule 1. Grading and re -vegetation plans depicting' the site at the conclusion of operations, or a plan for other ultimate uses. ' These plans shall demonstrate restoration of the site to either a natural appearance or its suitability for the intended use. 2. Plans to ensure soil quality adequate to sustain the proposed landscape plan. 3. Disposition plans for buildings and equipment after termination of extraction operations. Prior to approval of the conditional use permit and reclamation plan, the planning commission shall make the findings required by Section V.E. 804.4 of the Zoning Ordinance. The applicant shall post security guaranteeing, implementation of the approved reclamation plan prior to issuance of grading permits. February 27,1986 1 ►.w I I 1 L9r 1 � t 1 CB 1 •..� M I M O a0 1 00 - a i N I N • 1 00- 1 00 I I I 1 1 t O 1 bc 1 U I +-1 = M I M cc bD • I .r 00 I OO - U � I � 1 • L N t N • • 1 y 00 1 00 c 1 O 1 � I r� I 1 y 1 tq 1 1 C C Cl) 1 CO) Co .r I ,.a 'C7 00 1 00 N 1 N 00 100 . 1 ' 1 1 1. I 1, I � 1 � 3 M I M a00 I 00 1 I I U I 00 1 00 I (n I I w I I I I O C7 1 U I I I � I I Op tq C 1 ►-+ O • U x .� ca O . H U aai y C• - 00 N 00 M N 00 U ofU M 00 I 1 I I 1 1 1 1 1 1 bD 1 1 1 1 I !~ 1 I 1 r 1 •� i 1 1 1 1• ca I I t I 1 I I 1 I I I 1 1 t I I I- I .• i 1 I 1 co ^" I '• I I I i i. �j t OO 1 1 1 1 O ca I I I 1 I y I i 1 I 1 U I I t 1 1 �•�+ I 1 i I 1 C I I 1 I O U I 1 1 1 bD `••' I I 1 1 i I 1 I I co 11 - M t 1 1 1 UZ • t -I 1 1 . O a0 I 1 1 1 O U I 1 I 1 ❑ 1 I t 1 0-- I '. 1- 1 1 1 's•+ C P 1 I 1 CCSa . UN L(I) - I O L) N U 1 i I 1 CIS Q 1 I 1 a I I 1 I CO C I t I i - C 03 • I t I 1 .O •— O 00 1 1 I I U 4•j Cn C --+ i 1 1 1 O 'C U C 4•+ I 1 I I o 0 1 1 1 1 11 U f 1 1 I a II O 1 1 1 1 U +-) I 1 I I co U I 1 I 1 C U .• O t 1 1 I ^+ � ••-• 1 1 1 1 O S. 1 1 I I ^• .,5 O M I I I 1 Ct3 U • I 1 I I f. ^' 00 1 1 I I Iv O 1 1 1 I C U y co z II) Q i 1 1 U,+•+ 1 a V a I I 1 I t,7 co r~ bD N UCq T7 bD U U ' lx as O N m CU k •:. :. er ec U II S. W � L., � February27,1986 • L -1 A C a 4- c a u c cc r.. ca •U CD a cn O r 0 �cc 0 a Uo s~ M 00 M 00 m 00 M 1 • I 00 1 M I • I � I 1 1 I I I I 1 1 I 1 1 I I I 1 I 1 1 1 1 t I I I I 1 1 I 1 I 1 1 1 I I 1 I I I 1 1 I 1 1 I 1 M 1 t 1 • 1 1 1 00 1 1 1 1 I 1 1 1 1 I I f 1 1 1 I I I 1 1 1 1 1 I I 1 1 1 1 I I 1 1 I 1 t f I 1 I I • 1 1 I 00 P , 1 I I I 1 I I I I I 1 I I I I I I I 1 1 1 I I I I I• 1 I 1 I 00 • 1 I 1 1 I I 1 1 1 I I I r •f 1 I 1 I , I r 1 1 1 1 1 1 I i t I 1 1 I 1 1 I 1 I I 1 I I 1 1 I I I I I I M 1 1 1 I • I I 1 I aO 1 i I I 1 I 1 I I I f I I I 1 f I 1 l a I I 1 I I I 1 1 I o !V U 1 ca oO a I a• CM O �1 L ay ox 4 � 00 • 1 OO I 00 ,0 1 ! I 1 t , I I •"" 1 1 1 I cts - 1 1 1 1 t t~ ^ ca f I I I a .> 1 I 1 t O - 1 I I 1 t N O 1 I 1 I c I I 1 1 I t !~ 1 1 I 1 ^ O a) U 1 I ! ! bD- 1 r. 1• , , 1 co 11 1 I t I f•+ UN a. a v ! 1 I I a) cu ca I 1 1 I O-� • I 1 1 1 a) •^' C I 1 I I _ U �••� � 1 - I I 1 O 'O a) U O U 1 I w 11 0 I• 1 I I U 1 I I I a +•) t 1 ! 1 ow U co ca U a O S. (1) U I I 1 I ca +' z II ahUa� 1 f 1 ,U ca a F Iw c 0 U U y •^' l�¢ a) [w (ter o�-4 .. •., ro r v 11 a�a as February 27,1986 �" • MITIGATION MEASURES C-8 Historical Resources 8.1 Concurrent with. the submittal of an application for a general plan- amendment,. concept plan or change of zone, the applicant shall complete an historical resources literature search, records check and site survey, and submit a report to the Director of Community Development. - The records search .and survey shall be completed in accordance with guidelines established by the Director of Community Development. If historic resources are located, a ' detailed site investigation shall be completed, and a disposition plan considered, in accordance with MEA measures 8.2 and 8.3. (General Plan Cultural Resources Element) 8.2. Concurrent with the submittal of an application for a general plan amendment, concept plan or change of zone for a- project which includes a historic site, the applicant shall complete a detailed site investigation and submit a report .to the Director of. Community Development. The investigation and report shall be completed in 'accordance with - guidelines established by the Director of Community Development. (General' Plan Cultural Resources Element, and Environmental Review Matrix) 8.3 Prior to approval of a general plan, concept plan or change of zone for a project which includes an historical site, the City's Historical,, Archaeological and Paleontological Committee shall consider the significance of the site, and recommend a disposition plan to the decision making body in accordance with the policies of the Cultural Resources Element of the General Plan. Provisions of the disposition plan shall be incorporated into the project plans and conditions, as appropriate. Where plans call for demolition of an historic structure, the following provisions, as a minimum, shall be made: - a. The Irvine Historical" Society, or other recognized historical organization or agency, shall be permitted to place an historical marker on the site. b. Prior to the issuance of demolition permits, the site shall be photographically recorded and -a simple site plan prepared. A copy of this documentation shall be 'submitted to the Director of Community Development and the Irvine Historical Society. February 27,1986 i is C-8 (Cont) Historical Resources c. Prior to the issuance of demolition permits, the applicant 'shall notify the Irvine Historical Society, and provide the Society the opportunity to visit the site prior to demolition and remove any remaining items of -historical value. (General Plan Cultural Resources Element and Irvine Industrial Complex East, Phase IV and Irvine Center tentative map conditions) February 27,1986 b p C Cn7 I I I 1 f I I 1 1 1 1 1 i 1 I 1 ! 1 I 1 1 I I 1 M I cn 1 I • 1 • 1 1 i t 1 w 1 w 1 .1• N I N 1 1 1 1 w l w l 1 1 I ! 1 1 1 I i 1 1 1 I M , M 1 1 • 1 • 1 1 1 •I 1 N ! N • 1 • (� 1 1 7, 1 1 t 1 1 w l w l I C7� 1 O� ► f O) i I i 1 I r , I 1 1 1 ! , I , 1 1 1 1 1 , 1• • 1 1 O� I � ► r , ! 1 N I N 1 I 1 • 1 1 1 I 1 w 1 •• 1 1 •--� 1 � 1 1 eM ' CA t M 1 1 C7) 1 1 1 1 I I - 1 I 1 1 ! I 1 1 1 M t M I 1 0; 1 . 1 1 1 C; 1 1 w t w l 1 N I Cl! 1 i • I 1 1 CA 1 O� 1 1 1 I 1 w ! w I 1 I C3, I 1 I - I ! I 1 I 1 ! I i ► 1 1 1 1 a� a� t~ O \ 1� Qz co U 0'U' f 1 , I 1 1 I bA- 1 1 1 I 1 •-• 1 t i 1 Co. 1 1 1 1 w •• 1 f 1 1 t~ ^ 1 i• 1 1 ^' O > 1 I , 1 Ct3 •� ' Lw 1 I 1 1 +•� t I 1 f � fA 1 I I i Q I 1 1 1 w 0 1 r I U U i I 1 I bo ! 1 1 1 Ct5 II 1 1 1 1 C 1 1 1 i O 1 1 1 I •^� � Oco ! 1 1 COao 1 1 I t ca C m ca 1 1 1 I LZ. O I 1 'cj! I 1 O ••••� U t 1 • I P U +-+ - 1/7 U 1 1 , O O 11• U- . 1 i I i y 11 U co 1 1 •1 1 1r •••• 1 1 I 1 co W O. +, - 1 ,v •(o 1 1 •� i. 1 cU 1 1 I 1 N .0 ca •^C+ U t N t t 1 0 If \ :~ v ua bo b 3� O r� Z 1, ' (V W Q w O N N ^1 4J L U y O U •.a .a Q � February 27,1986 ~ i • Cs 1 I I t t I 1 I 1 1 I 1 1 h I I 1 ! 1 1 , I ► I f 1 f I 1 1 I I • .--. 1 I i I 1 1 1 1 cis •.. 1 I , 1 1 1 , I (/j I� ►� 1 1 , 1 1 I ' 1 CN t C14 1 , 1 I 1 NM I 1 • 1 1 1 1 1 I • 'I I 1 1 t I 1 1 I 1 - I t t I i t� 1 1 I t ► I 1 1 I 1 1 1 1 I 1 1 I 1 I i 1 I La = I C"! 1 M t 11 O bD 1 I •- 1 U •.., 1 f�i 1 i I w l w l 1 1 CI N t I O 1~ 0 N I N ► , !1+ ! • ! • 1 1 • 1 ! 1 1 I t 1 1 I ! I 1 1 1 I 1 M I M 1 1 I w l w 11 I N 1 N 1 1 v i • 1 • 1 1 � t 1 1 1 1 i 1 I a l 1 i , U � NU ! t 1 Cff 0 i.1 'C7 W ^ TJ O U O ca 0 .— b0 co > !r I Q3z~ OI U al C7 I r 1 1 1 ba i , 1 C 1 ! 1 1 •^� ! i I O I 1 i I I r �•+ 1 1 I i , I •• 1 - I • I 1 •u'C I I t 1 in 0 1 1 1 I Co. t I I 1 +� 1 1 1 I y I 1 1 I y 1 I 1 1 ^O I , (Du 1 1 1 1 bb-- 1 I 1 1 C ca 11 . UZ 1 I • 1 - , I 1 1 i 1 1 1 ! O ^ 1 I 1 1 =•+ • .0 co 1 1 1 1 cc D O 1 , 1 U 1 1 1 1 co Q ! 0.0 'O _ 1 ! "V " I i CD -- != 1 1 • 1 1 U Co 1 1 C) 1 1 C ••"� . 010 U i I 1 I U C h 1 1 I o uU 1 1 I 1 4� it o 1 ! >~ co ca U as •'^� I I 1 ! :F +•J I 1 1 1 co t+ 1 1 • 1 I i~ '•" Qi U 0 11 \ as a • .H bD ca > +� > as O b0 ti � 1••1 �y Jd �1 y In co 4.4 •~ i.l > O O $. Febniary27,1986 '�' I 1. 1 1 t 1 I 1 1 1 1 1 1 1 r Im February 27,1986 S i • MITIGATION ,MEASURES C-9 Archaeological Resources 9.1 Concurrent with the submittal of an application for a concept plan or change of zone, the applicant shall submit to the Director of Community Development a -report describing the results of an archaeological literature search, records check and survey for areas shown as unsurveyed according to the Master Environmental Assessment. - The survey and' -report shall be completed in accordance with Appendix D of the Environmental. Review Matrix. (General Plan Cultural Resources Element, V.E. 700.2 (14), and Environmental Review Matrix) 9.2 Concurrent with the submittal of 'a concept plan or zoning application which would adversely affect an archaeological site, the applicant shall complete a -test level investigation and submit a report to the Director of Community Development. The investigation and, report shall be completed in accordance with Appendix D of the Environmental Review Matrix. (General Plan Cultural Resources Element, V.E. 700.2 (14), and Environmental Review Matrix) 9.3 Prior to approval of a concept plan or change of zone for a project which includes an archaeological site, the City's Historical,.Archaeological and Paleontological Committee shall consider results of the test level investigation and, recommend a disposition plan to the decision making body in accordance with the policies of the Cultural Resources Element of the General Plan. Provisions of the disposition plan shall be incorporated into the project plans and conditions, as appropriate. (General Plan Cultural Resources Element) 9.4 Prior to the issuance of grading permits, the -developer shall provide written evidence to the Director of Community Development that a qualified archaeologist has been notified, and will be on -site during grading and other significant ground - disturbing activity. The archaeologist shall be -present at the pre -grading conference, shall establish procedures for cultural/scientific resource surveillance, and shall establish, in cooperation with the developer, procedures to temporarily divert grading on the site to permit the sampling, identification, evaluation, and disposition of any artifacts. If cultural/scientific features are discovered, the archaeologist shall report such findings to the developer and to the Director of Community Development. .If the cultural/scientific features are found to be significant, the archaeologist shall determine in an expeditious manner appropriate actions, in cooperation with the developer, which ensure that the resources will not February 27,1986 i E C-9 (Cont) Archaeological Resources be destroyed before exploration and/or salvage. Final mitigation of impacts and disposition of the resources shall be subject to the approval of the Director of Community Development. Upon completion of the grading- observation, the archaeologist shall submit a brief report to the developer and the- Director of Community Development in conformance with the guidelines contained in Appendix - D of the Environmental Review Matrix. (Proposed Standard Subdivision Condition 2.6) February 27,1986 i 0 O 1bc ca bo x G" R a7- rr o ..a 1 1 t 1 1 I , ► t 1 I 1 1 1 1 1 1 I 1 1 ! I 1 - 1 , ► 1 , 1 V 1 i 1 1 1 1 t f , 1 ► 4 ► I ► i . 1 I t I ! ► O 1 0 ► I I t .� ► �••� l 1 t 1 1 1 1 1 f w l w l 1 1 I M I v I 1 I 1 • 1 • 1 1 I 1 0 1 0 1 1 I 1 w 6 w! I 1 t N 1 N 1 Lf"� ! ► 1 • 1 • ! • 1 1 ! 1 1 1 1 • 1 1' 1 I 1 1 ef+ 1 !r 1 1 1 I . 1 • i I I I O 1 0 I I 6 1 .--� 1 .�•i 1 1 1 1 w l w l 1 1 I M t M 1 ► 1 1' • 1 • b 1 1 1 1 P ! ► 1 N 1 N 1 0 ! 1 1 . 1 • D • 1 I I 1 1 I ! 1 1 1 1 I 1 I 1 i 1 1 t 1 • 1 • 1 I I 1 •O , O I - I 1 ► .--� 1 .-r 1 1 - i • 1 w �1 w l I I I M I C`M 1 ! 1 1 . 1 . 1 1 I I C 1 p I I 1- . 1 .-, 1 w., 1 ► I . I w l 1 CN 1 N 1 IPA t 1 1 . I • 1 • 1 1 • ► o 1 1 I I t 1 1 1 1 1 1 0 1 0 1 1 1 i 1 1 1 1 1 1 1 I I M 1.M 1 1 1 I I .o t o 1 1 ► I 1 .=-� i •-. 1- 1 1 I 1 w l w r I N 1 N I Lo 1 I I '•t . 1 . I . 1 ► I t o► 0 1 0 1 I � I , 1 , ► I 1 1 1 1 1 I 1 I I ► t I 1 I I I ► 6 1 I I I I I U Febmary 27,1 bo i~ co t~ co .sty aCD f•r-� U coo ca it z S. y C A di ba.- c cts 11 aJ�J O N ,' Ir 1r U o' co Na � wc� v CC,: a.— -� 00 ii r. 113 0.0 olr7 Ucw 0 0 IIU U ca U c U .— CO w ..) as O co U 0.0 w O U co o S" +-, ca u\ � � 0 a �a �co �, b0 E-y � 4.J W CO O co o II 0 a� a a' i • 7 8 b wa 900 b0 x 3 0 a 0 a � I I . I ► O 1 I 1 , w ! 1 . I l o l o 1 1 1 i I 1 1 I I I 1 1 1 I I i I 1 ." ► I , 0 1 I I w 1 I I . t I O 1 0 I I I I i I I I I I 1 I I 1 I I 1 I I o 1 I I t I b w 1 i t . I I O 1 0 I I 1 1 I 1 1 I f 1 I 1 1 I 1 , I I I I I i I 1 , I 1 I I O t 1 t 1 w I ! w•n I tt9 t • 1 • 1 I 1 1 1 I t 1 , N 1 t 1 1 i 1 1 I 1 I O 1 0 1 1 I I t 1 ! w l w l 1 1 0'1O to I 1 LO O' 1 ► , 1 I 1 i I 1 1 1 • 1 • 1 1 1 1 1 , r 0 , O r , ► , t 1 1 .�•� 1 .-� 1 1 d 1 1 1 1 1 I I I 1 I 1 1 .•ti 1 .--� 1 LO 1 t 1 ! 1 1 • 1 i I • .1 1 1 I •-. 1 rr 1 .—� 1 1 1 1 1 I 1 I i I 1 I I 1 1 1 1 I 1 1 1 1 t 1 1 I 1 �I � � a,, � n; ► U � H � ��j � z ' oz ' C7 ' U ' N ' F'" ' � ' Cj 1 U •� 1 Cj 1 Cj 1 1 I 1 I t I I 1 I 1 1 I I bD x b0 s; •v c>s C I � � a> I � o Ca ..r u U If 41 t~ N t~ Oo a� U b0 - a 0 11 UQ a) U C O ^ . II w a) cis co a z " U cts a�o .1..1 C U +-+ co O "a as U o Co. if U Uu o ^ a, N C U co ca U crj ... ca S. 0 a) U >~ U 11 \ • 4 :~ as S. a) 0 •� a as 41 O (1) w.y • C-10 Paleontological Resources 10.1 Concurrent with the submittal of a concept plan or zoning application for a project which could either adversely affect a recorded paleontological site or is located within an area designated either "moderate"' or "high" sensitivity on Constraint Map C-10. (Paleontological Resources) of the City's Master Environmental - Assessment, the applicant shall_complete a paleontological literature search,, records check and field survey, and submit a report describing the results to the Director of Community Development. The survey and report shallbe completed in accordance with guidelines established by the :Director .of Community Development. This report may be waived if -a records 'check or field survey acceptable to the Director of Community Development -has been previously completed. (General Plan Cultural Resources Element, V.E. 700.2 (14), and Environmental Review Matrix) 10.2 Concurrent with the submittal of a concept plan or zoning -application for a project located within an area designated "low" sensitivity on Constraint. Map C-10 (Paleontological Resources) of the City's Master Environmental Assessment, the applicant shall complete a paleontological literature search and records check, and submit a report describing the results to the Director of Community Development. The records check, and report shall be completed in accordance with guidelines established by the Director 'of Community Development. This report may be waived if a records check acceptable to the Director of Community Development - has been previously completed. (General Plan Cultural Resources Element, V.E. 700.2 (14), and Environmental. Review Matrix) 10.3 Prior to approval of a concept plan or change of zone, a paleontological survey of the project site shall be completed, if a previously_ completed records check finds any of the following: a. Newly recorded sites are present within or immediately adjacent to the project, or b. According to the Master Environmental Assessment rock units of "moderate" or "high" sensitivity underlay the project site and could be disturbed by earth moving activities (This applies to projects located adjacent -to the boundary of a moderate or high sensitivity zone), or February27,1986 C-10 (Cont) aleontological Resources c. According to geologic maps published by the United States Geological Survey, - - or California Division of Mines and' Geology, rock units designated "older. terrace" or "older alluvial" are present on the project site. • The survey and report shall be completed in accordance with guidelines established by the Director of Community Development. (General Plan Cultural Resources Element, V.E. 7001(14), and Environmental Review Matrix) 10.4 Prior to approval of a concept plan or change of zone, the City's Historical, Archaeological and Paleontological Committee shall consider- results 'of the paleontological records check and field survey, if completed, and recommend a disposition plan for the site to the decision making body in accordance with "the policies of the Cultural Resources Element of the General Plan: Provisions of the disposition plan shall be incorporated into -the project plans and conditions of approval, as appropriate. (General Plan Cultural Resources Element) 10.5 Prior to the issuance of grading permits, the developer shall provide written evidence to the Director of Community Development that a qualified paleontologist has been notified, and will be on -site during "grading and other. significant ground -disturbing. activity. The paleontologist ,shall. be present at the pre -grading conference, shall establish procedures for cultural/scientific resource surveillance, and .shall establish, in cooperation with the developer, procedures to temporarily divert grading on the site . to permit the sampling,, identification, evaluation, and disposition of any resources. 'If cultural/scientific features- are discovered, the paleontologist shall report such findings to the developer and to the Director. of Community Development. If the cultural/scientific features are found to be significant, the paleontologist shall determine in an expeditious manner appropriate actions, " in cooperation with the developer, which ensure that the resources will not be destroyed before exploration and/or salvage. Final mitigation of impacts and disposition of the resources. shall be subject to the .approval of the Director of Community Development. Upon completion of the grading observation, the paleontologist shall submit a brief report to the developer and the Director of Community Development which. shall include the period of inspection, an analysis of the fossils found, and present repository of the fossils. (Proposed Standard Subdivision Condition 2.6) February 27,1986 • i E � ,J ► i I t 1 ► t I I ► w w I► r l t l r 1►_ 1 X. q ►• I 1 1 1 I ! ! I 1 p ! 1 11 ► I d ► I I 3z I 1 I I ► I I I- I I ti � I 1 I I ► I a I 1 i U f- ly 0. � I ► I 1 I 1 t ► t i �. ro I I I,• 1 I I I t i t M •N 1 I 1 t I 1 1 1 ► ► Q, ! ► -1 1 1 i I 1 I 1 � i 1 ► 1 1 1 1 I i 1 1 I I I- ► I 1 I - I I 1 I t 1 1 1 t I i I f ► ► I- f I ! ! I I 1 I 1 I 1 1- ► 1 ► I ! ► ► 1 1 I 1 ! I I 1 1 I } I I i I ► ! I t 1 ► 1 ► 1 I 1 i p 1 1 1 I 1 I ► I, f I I 1" ► 1 1 1 ► 1 1 I 0 1 - r r ► I-.- ► f I i 1 U •N � 1 1 I 1 i 1 1 I I f 1 1 I I !. t- I 1 1 1 1 1 1 •1 1 I 1 t I I • •ry � i 1 I I 1 I i _I 1 r ! I 1 i- i I 1 I I 1 C I I t 1 t 1 I I 1 1 I i I I I I ! 1 1 1 vj 1 11 I I I I 1 ! I I I 1 I I I 1 I I 6 N t t ! •1 i I I I 1 t � •ti � 1 1 1 I I I I I I t '�•� � � I I 1 1 1 I I 1 i I ro ry I ! I 1 1 t I t 1 1 C a 'ti t 1 1 i f I 1 6 1 �� 1 ► I t I I - 1 1 I r td 1 1 I I 1 I t 1 I 1 ty 1 I 1 ► t t 1 I ! i t ► t I f � 1 ► 1 I I 1 1 1 i I - q 04 I I ! 1 t I 1 1 ! I ! ► 1 I ! t r r t I (� I t 1' I I 1 I ► t I eC ! 1 1 1 1 1 1 I 1 I ► I ► I � 1 I 1 1 I' tr., � ! 1 1 f I I ► ! I 1 � � I 1 I t 1 f 1 ► 1 t Q; fJ 1 ► I i ► 1 1 1 1' I a 1 1 1 1 f ► 1 1 ! I tt I I 1 I I 1 I f I' ► w to f I I I 1 I I f ! I' H I 1 I I 1 11 1 1 I p 2 M I I ! 1 l a 1 a t ri r U I C~ I L1 1 1 ! 1 I t L1 1 fS .I U I [-4 1 4 O V V [•+� ..� I 1 1 I I I I I 1 i w I i I 1 I 1 i 1 I I �U � � a U r, .CZ rn a► ro a .. � Co ca wa o ti k b �• N U ry ro h N +4 ti 4N ro � roco oh February27,1986 ~ LJ olN rA It L4 ro N ro 1 1 ' I I I 1 ro I ! •H ! I ti I N 1 I I 1 I I I I U •,y 1 I I •H ti l ry i H l H 1 i ) I I N 1 f ro •H I r-1 1 M1I a b I I 1 I ry 1 �`•I I 1 1 1 ti• '. ' 1 1 N C7 I U•I ti• lr) I I • I 1 • h I I ry I 1 w I i w • • I i ry ri 1 � t 1 I 1 1 • �•t I 1 � I i w 1 1 •• ! I ti � I I ti ti � I ti I 1 I t w I I • I 1 • i 1 w - I 1 •• u1 • I 1 • I 1 I I •• ry O� 1 1 ry �I ti I ry t t _ t t w 1 1 a0 I I !\ ti I 1 ti 1 1 w I ! I 1 •_ i I w 1 1 w •`•1 �1 t �1 l �1 1 ! I I 1 t I 1 f U I 1 ry ro 'H ili N o ' ty N 4.J N N C7 tll O b N 'H U U • I � 1 � 1 . 1 � t � 1 I i t i ap t t 1 I- I I I I I t ! I b0 1 ti I I I -b 1 'I 1 t tC1 I 1 � I - 1 I • I • • �1 • 1 �I- 1 I H 1 �1 w •° � 1 ry t I *••1 1 H � ''� I I 1 ! ro H w l •• t 1 w l •� �^i O N I N D\ ! N i N I N Q. !►� 1 H. � I �+ 1 � I � 1:� a i-1 - I • I -i • 1 - U - I M I I '•rl l � - I F I I 0.4J t\ ) Lr) I ! • LJ b ro N ro zz ro ro v Z ctl 1 1 1 1 t 1 •ry 1 • I *mot i ti t ! t O I ► I t I I Ct. 1 I w l w l f I M I M I M • ! • I • 1 • I • i • I • .j" I ^1 1- ti f �►I I 1 I •H 1 i i 1 1 I• w l w( w l ! I "II M 1 M I M I 1 M t • I M t M I •- 1 • • ! • I • • � i H I� 1 *mot I, ti t �•t 1 �I 8 r l r! r I � I• � 1� I ti l f I •ry I �I r� I ti l 1 ! M I M 1 I M) 1 • 1 M 11 M! 11M • 1 • t • 1 • • ti I •ti i ti l �• !� t ry 1 ti I 1 1 I 1 I 'H . ro w •. ro-q ro N �a a� • 4J I: ro �o ro 'H U 11 �- a44 m ro w Q NU dD� Q ro 11 - U � O NU q N 41 H 11 � ' fy • vm� N IY U C '• Ql ro roa o T-I U 0. N U co 4 C aov U .0 ro C •H to O T! N U O t::) • - u U a If O U am w� 41 CU ro ro U r-t w •ry a a 4-I Co 'H �-i Z_- I.J. ro ti ro N �U Q U I+I •` U ro 41 H n � � „ ti co ,a .. E~ to 3 C1 O N H 'H > •L7 � •t-1 •H x ro ro 4-+ C O Q) w _ E-, 41 a► E-4 a� EL, February February 27,1986 ~ • IS i f -a to 'H r r r r � Q I a. I V I� I Q F C I a I 13. I V 1 h I ly I C 1 0 C7 I U 1 N I F+ I:2� I V t V a I I I I 1 I t t 1 I I 1 roa Enw 'H Z °U �n k 4a' ro ° ti 44 U 'H February 27,1986 "' • i cn A 959 to cn .¢ U A w I'M M O a c 0 'N cu a� a 'ti I~ O a U O Iti u q H C5 U h o- I February27,1986 0 R 6 1 ti v O 'H O { a N, E-4 1 h I a 1 ► I I 1 I 1 I ! 1 ! I I I I I 1 I I I 1 ! I 1 I I I 1 I� i I 1 ! t ► I I I I 1 1 1 1 I 1 � I I I ! 1 1 • 1 �1 1 � I • t w 1 w I In 1 •� I . 1 t ^I I ti I ! 1 1 I t I I I t 1 1 ► I 1� I I 1 1 I I I I 1 ! I 1 I ► " I 1 1 1 I i I 1 I I I I ! I 1 I t I I 1 I 1 I I 1 I ! I I I ! I ! 1 1 ' 1 I 1 1 9 U I U t 00 a •H b ro - N ca �1 v a > v v +� C ro o ro •H U II C w Q NU a0� C cu v o� C _ O w N +.1 • 'H II E3 NcL chi C w v ro a m a ro� ry U roo 4-j C v •H C U •u ro C •H o 'ti v U C ca 4-4 n U � U u O w 4J CU ro ro U a� a• 4-4 ro 'H -q:Z: ro s� v ro U C U Ch (U 4-j a 'H n� a ro Qv.. 3 C v v H 4.J4-1 O v E- �I 'H N II Q >~ Oh N a E-4 a, February27,1996 �' . 0 T C R a� 'H O w t4 0 R; •H o v M N ti "•I H H O M H h 9 'H ro ti C "1 co ry Q] 0. > O sr a Q) .0 C co o CO 'H U II �' I Q Q) U to C ro 11 j v� o OU C O w N +� 'H u 8 U a) ,, N0.-u (Z • Q) ro C rq Q. co 0. pl U ro 4 Q. O' d Q) ••H, C U 41 ro C H O "Cl Q) U C co o a u U w U n o a o w d.1 CU ro ro U a 4-4 coco 'H co :r C U Q) I, w- ro 4�j a •H u I., cap ro a .. E, to 3 C Q) Q) -H H > 'd 'H �I Q) 4-1 'H x co -A 4-+ C OQ) � ^I 'H Q) 0 A E� M S* �?l ry N N l 3 ao 'H I a to .a 'N ro w CZ C� rory +� a ' roo ro 'H U II C C NU C � - rou U� N U C - p w N •G•, II e {y o N0. U c w a� ro C EQ Q. rot� z �I U. a H U roO 4-j ao� m •� C . U •I-J ro C N. O Z7 N U' C ct) O � n U a u o U wa 4-J cU ro ro U n.l w •ey a 4-4 coH •C i.I ro NQU C U U ro u\E 4 tr roa .. Eto 3 C N N H •N > •Lf N L •N 4-+ a, O V w E-4 4-1 �I N ro n e a s~ N E-, N Febmary 27,1986 "� 0 MITIGATION MEASURES C-11 Aircraft Noise and Crash Hazards Crash Hazards 11.1 All development within an area classified as an Accident Potential Zone H-shall be compatible with the latest adopted El Toro Air Installation Compatible Use Zones (AICUZ)Study land use compatibility criteria (AICUZ Exhibit B-1, Land Use - Compatibility in Accident Potential Zones). Additionally,, the maximum number of people allowed in any single structure which could be demolished by a single aircraft crash shall not exceed 200, and the maximum site coverage shall not exceed 75%. (El Toro AICUZ, Study; Memorandum of Understanding between the City of Irvine and USMC, El Toro) 11.2 All development within an area classified as an Accident Potential Zone I shall be compatible with the latest adopted El Toro Air Installation Compatible Use Zones (AICUZ) Study land use compatibility criteria (AICUZ Exhibit 1371, Land Use Compatibility in Accident Potential Zones). Additionally, the maximum number of people allowed in any single structure which could be demolished by a single aircraft crash shall not exceed 100, and the maximum site coverage shall not exceed 50%. (El Toro AICUZ Study; Memorandum of Understanding between the City of Irvine and USMC, El Toro) 11.3 All development within an area classified'as a Clear Zone shall be compatible with the latest adopted El Toro Air Installation Compatible Use Zones (AICUZ) Study land use compatibility criteria (AICUZ Exhibit B-1, Land Use_ Compatibility in Accident Potential Zones) (El Toro AICUZ Study; Memorandum of Understanding between the City of Irvine and USMC, El Toro) 11.4 Concept plans shall include a land use map showing crash hazard areas.. (V.E. 801.2 A,1) , 11.5 Prior to issuance of building permits for a project for which a notice of construction or alteration is required by the Federal Aviation Administration (FAA) under Federal Aviation Regulation Part 77, the applicant .shall submit a • copy of the FAA application to the, Airport Land: Use Commission (AIXQ, and provide the city with the FAA. and ALUC responses. If the ALUC requests review February 27,1986 C-11(Cont) Aircraft Noise and Crash Hazards of the project, then the project shall, be. submitted to the ALUC. The ALUC determination shall be sent to the, city within sixty. (60) calendar days from the date of referral of the application to the ALUC, and shall be considered before .the city takes any action on -the project. If the ALUC fails to refer the determination within that period, the proposed project shall be deemed consistent with the Airport Environs Land Use Plan.(AELUP). (V.E. 301.4 A). • 11.6 Conditional uses characterized by a relative high density of occupants per use area shall be permitted only if the planning, commission finds that they are compatible with the aircraft accident potential planning guidelines of the Air Installations Compatible Use Zones (AICUZ) Study. These uses include: etc. (VI 709.2) 11.7 All structures in the vicinity of an airport shall comply with Federal Aviation Administration height criteria. (V.E. 301.7 and individual village zoning height limits) 11.8' Prior to issuance of building permits for uses located within. Aircraft Accident Potential Zones 1 or 2, the subdivder shall submit the following items with regard to aircraft crash hazards to the Director of Community Development for approval: A final copy of sales literature with the approved crash hazard statement printed on it. A copy of the document to be signed by each buyer containing the crash hazard statement and a disclosure statement on aircraft activity. The subdivider shall record a document separate from the deed which will be an information notice to future buyers of aircraft crash hazards impacting the project. The content of this notice shall be reviewed and' approved by the. Director of Community Development prior to recordation. (General Plan Policy F-3 1,, City Council Resolution 1090, HC-East, Phase IV Tentative Map, Proposed Standard Subdivision Condition 3.5) 11.9 Prior to the issuance of building permits, outdoor lighting plans shall be reviewed and approved to demonstrate how the outdoor lighting will be, designed and installed so that all direct rays are confined to the site and that adjacent properties and aircraft flight corridors are protected from direct rays and glare. (V.E. 302.9) February 27,1986 C-11(Cont) Aircraft Noise and Crash Hazards • i • Noise 11.10 All development _shall be compatible with future noise levels according to the criteria shown in General Plan Figure F-4. (General Plan Policy F-lc) 11.11 Residential - development shall not be permitted within the 65 CNEL aircraft noise contour. (General Plan -Policy F1 b) 11.12 All development shall be sound attenuated against present and projected, noise levels according to the noise standards shown in General Plan Figure F-5. (General Plan Policy F1 k, F2 a, Figure F-5; V.E. 700:2'.[8]; Standard Subdivision Condition 3.4) 11.13 Concurrent with the submittal of an application for a general plan amendment, concept plan, or zone change, the applicant shall submit a report which analyzes existing airport noise and depicts airport noise contours on the proposed land use - or development plan based on. Figure F-2 (Aircraft Noise) of the General Plan Noise Element, or the most recent noise contours available. The report shall discuss the compatibility of the proposed uses based upon General. Plan Noise Element compatibility criteria (Figure F-4), and propose land use alternatives, if necessary, to avoid "Clearly. Incompatible" and minimize- "Normally Incompatible" uses. (General Plan Policy Fl e,m,n; Zoning Ordinance. V.E. 801.2 A 1; Environmental Review Matrix) 11.14 Concurrent with the submittal of a tentative map, the subdivder shall submit a preliminary report addressing aircraft noise. The report shall be prepared by an expert in the field of acoustics in accordance with the Environmental. Review Matrix, Appendix E; and Community Development Department- Policy 15. (Required for all projects with proposed uses which fall within categories other than "clearly compatible" (based upon unmitigated ultimate noise levels). (General Plan Policy Fl e,f; Environmental. Review Matrix, Community Development Department Policy) 11.15 The following noise sensitive uses shall be permitted only after approval of a conditional use permit: a. Libraries b. Hospitals c. Child Care Centers d. Convalescent Homes February27,1986 C-11(Cont) Aircraft Noise and Crash Hazards 0 - e. Private Schools 11.16 The maximum interior noise levels of the loudest 10% of single noise events (Lmax (10]) for noise sensitive land uses shall not exceed 65 dBA daytime (7 a.m. to 7 p.m.) and 55 dBA nighttime (7 p.m. to 7 a.m.) for typical occupancy. (General Plan Noise Element Standards) 11.17 Prior to issuance of building permits, the applicant shall submit a Final Noise report in conformance with the Environmental Review Matrix, Appendix E, and _Community Development Department Policy 15. ' This report may be waived if a previously completed preliminary noise report has found that the design of the proposed project, in combination with standard construction materials and practices, will assure compliance with the City's noise standards. (Environmental Review Matrix and 'Community Development Department Policy) 11.18 Prior to issuance of building permits for residential uses, the subdivder shall submit the following items with regard to aircraft/helicopter noise to the Director of Community Development for approval: o A final copy'of sales literature with the approved noise statement printed on it. The -noise statement shall contain at a minimum: a. The location and altitude of any jet or helicopter flight paths over or in the vicinity of the proposed subdivision. b. The distance of the project from runways in the vicinity. C. The probable frequency of, both visual and audible impacts by aircraft. d. The type of flight activity causing impact. e. The general hours during which such aircraft activity can be expected. o A copy of a document to be signed by each buyer containing the noise statement. The subdivder shall also record a document separate from the deed which will be an information notice to future buyers of aircraft and helicopter activity impacting the project. The content of this notice shall. be reviewed and approved 1 Noise sensitive land uses include residential, convalescent and rest homes, hospitals, libraries, churches, and schools. February 27,1986 C-11(Cont) Aircraft Noise and Crash.Hazards by the Director of Community Development prior to recordation. (General Plan Policy F-3 1, City Council Resolution 1090, HC-East, Phase, IV Tentative Map, Proposed Standard Subdivision Condition 3.5) • 11.19 Prior to issuance of building permits for other than.clear-ly compatible (according to General Plan Figure F-4) non-residential: uses; the subdivider shall submit.the following with regard to aircraft/helicopter noise to the Director, of Community Development for approval: o A final copy of sales literature with the. approved noise -statement printed on it. The noise statement shalf*contain at a minimum:. - a. The location and -altitude of any jet or helicopter flight paths over or in the vicinity of the proposed subdivision. b. The distance of the project from runways in the vicinity. C. The probable- frequency of both visual and. audible impacts by aircraft. d: The type of flight activity causing impact. e. The general hours during, which such aircraft activity can be expected. The subdivder shall also record a document separate from the deed which will be an information notice to future buyers. of aircraft and helicopter -activity impacting the project. The content of this notice shall be reviewed -and approved by the Director of Community Development prior to recordation. (General Plan Policy F-3 1, City Council Resolution 1090, IIC-East, Irvine Technology Center Tentative Map Conditions; IIC-East, Phase IV Tentative Map Conditions, Proposed Standard Subdivision Condition 3.5) February 27,1986 mc a w w � A O w H ti ::, CU rg Itil i 0. O a U i t t V i N sv 'N o2w 2 'o O G ro s4 o"X, Ce •N ro February 27,1986 0 • A 3 N A Q N O o 09V i N D t." Co a ry ry N ry N ry ry N ry ry N ry N ry �1 ry O ry N ry N ry N ry N ry M N N ^I ry w • N ry • ry N wry Q. w ry ry ry N ry ry ry ^t M ry �. w N N �+ ry w •N !�1 • �t N w ry O w ry � -• • ry N ry ry ry. • ry M ry w (y N ^I ry w • N ^1 ry N, Q w ry ry •. • ry N ry �I k1 ry ry M ry • w Cy N ry ry w • N� ry • ry N w ry Q ,w ryry ry ry 1 N 1 I � • i w N 1 ry w 1 ry • 1 w ry I N w IryC� 1 •-I N N I ry ry ry I I I I N I I N U1 I ry I eN I n ry, I ri w I ry • ' I ry N w ry 1 N w I ry N N- I ry ry ry ! N N_u1 ry • w N � ry CN ry w wry C14, w ry M �0.1 ry N N 1 ry ry ry I I I N 1 N u1 I ry • N I ry • ry • I �+t N 1 wry I N w 1 ry N• N I ry,ry ry I O �Q. I V I N N • N N' I N' I ry I a; a U February 27,1996 MITIGATION MEASURES- -C-12 Roadway and Railroad Noise 12.1 Prior to the approval a general plan amendment, concept plan, or change of zone for a project within the 60 CNEL noise contour, the applicant shall prepare a report which analyzes the existing and ultimate exterior noise levels (with and without the project) for all roadways (collector -and -above) within and adjacent to the project site. Noise levels shall be shown graphically on the land use or development plan, and in table form in increments of 5 CNEL, beginning at 60. Data from. the City's General Plan Noise Element shall be used where available and current. The report shall also. include a discussion of compatibility of -the proposed land uses based upon the General Plan Figure F-4 (Land Use Noise Compatibility), and shall propose land use .alternatives or general design approaches which may be employed to avoid "Clearly Incompatible" uses, and minimize "Normally Incompatible" uses. (General. Plan Figure, F-4: Environmental Review Matrix: Noise) . 12.2 Reduce noise impacts ' from mobile sources by encouraging use- of` alternative modes of transportation such h as biking, hiking, and horseback riding. (General P1an'Policy Fl r) 12.3 Concurrent with the submittal of a tentative map, for a project with proposed uses which fall within categories other than "clearly compatible" ,based upon unmitigated ultimate noise levels, the subdivder shall submit a preliminary report addressing roadway and railroad noise. The report shall be prepared by an expert in the field of acoustics in accordance with the Environmental Review Matrix, Appendix E, and Community Development. Department. Policy 15. (General Plan Policy F1 e,f, Environmental Review Matrix, Community Development Department Policy) 12.4 Concurrent with the submittal of.' an application for a master .plan, 'conditional use permit, or building permit, the applicant shall depict project related noise sources on project plans, and propose mitigation measures which ensure that noise will not exceed the limits established by the city's Noise Ordinance. Such sources may include, but are not limited to the following: 0 a. Truck pick-up and loading areas February 27,1986 C-12 (Cont) Roadway and Railroad Noise b. Mechanical and electrical equipment such as air conditioning, swimming pool pumps and filters, and spa pumps c. Outdoor speaker boxes and public address systems. (General Plan Policy F2 b). 12.5 Prior to the issuance of grading permits for projects located adjacent to..noise sensitive uses', the applicant shall submit a construction noise mitigation plan for approval by the Director of Community Development. The plan shall depict the location of on site construction equipment, and how the noise from this equipment will be mitigated during construction of the project. (General Plan Policy F2 c) 12.6 Prior to issuance of grading, the subdivider shall submit a construction traffic routing plan which will route construction traffic away from noise sensitive uses'. This plan, shall be approved by the Director of Public Works. (V.E. 7114 [181) 12.7 Examine the existing and projected future noise environment when considering amendments to the City's circulation system. (General Plan Policy Fl q) 12.8 ' Incorporate the following noise mitigation measures, as appropriate, into the design of new, highways and streets -to ensure that new roadways will not result in future noise levels exceeding City standards for existing or planned uses. a: alignment alternatives_ b. barriers c. lateral separation d. vertical profile (General Plan Policy F1 p) 12.9 Construction activities shall occur only between the hours of 7 a.m. and 7 p.m. Mondays through Fridays, and 9 a.m. and, 6 p.m. Saturdays.. No construction activities shall be permitted outside of these hours or on Sundays and federal holidays, unless a temporary waiver has been granted by the Manager of Inspection Services. Any waiver shall take into account the impact upon the community. (Noise Ordinance VI.K 305) . 1 Noise sensitive uses include residential, convalescent and rest homes, hospitals, libraries, churches, and schools. 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'H x Co, 4-jro v.l Q Q (1) w C~ � ^I 'H Q) If E > v C—, v aha February 27,1986 "I • i C, MITIGATION MEASURES C-13 Special Districts Hillside District 13.1 Concurrent with an application, for a change. of land use category within the Hillside District, the applicant shall submit the following information in the number specified by the Director of Community Development: a. A conceptual grading plan depicting the following: 1. Area (village) boundaries; 2. Areas to be left undisturbed (not graded); 3. Areas which will not be developed; 4. Areas of proposed cut and full (in contrasting colors) clearly showing where cut and fill exceed depths established in the hillside development guidelines; 5. Contour intervals of ten. (10) feet for existing and ultimate grades. b. A slope map depicting existing slope zones in percentage_ categories and contrasting colors as follows: Percentage Slope Zone Natural Slone 1 Less than 10• -2 10 to 19.9 3 20 to 29.9 4 30 and greater c. A conceptual drainage and flood control plan describing planned drainage improvements. d. A conceptual landscape plan which addresses entry way treatment, streetscapes and other overall village landscape elements. Febmary 27,1986 1 C-13 (Cont) Special Districts i 9 13.2 e. A preliminary geological and soils report prepared 'by. a registered engineering geologist. f. A natural features map identifying all slope banks, ridgelines, -natural drainage courses, rock outcroppings, existing vegetation and other natural features determined to be worthy �of consideration for preservation. Also depicted shall be landslides ' and other existing geologic hazards. Each feature depicted shall . be noted for its visual (V) . significance, - environmental function (E) or Froth. g. Photographic renderings, view analysis, three-dimensional models and other information if required by the Director of Community Development. (Hillside Overlay District Regulations V.E. 502.1) Prior to a recommendation for approval of a change of land use category within the Hillside District, the Planning Commission shall first find that: a. The proposed development -concepts and plans are compatible with the natural topography of the site; and, b. Are in conformance with the spirit -and intent of the hillside development district guidelines and the following policies. 1. To preserve the most visually significant slope banks' and ridgelines in their natural state by clustering development into meaningful neighborhood units. 2. To minimize the effects of grading and ensure that the natural character of the hillside is retained. 3. To preserve visually significant rock outcroppings, native plant materials, natural hydrology, and areas of historical or visual significance identified by the general plan, or through the environmental impact report procedure to the maximum extent possible. 4. To preserve views of significant visual features as viewed both - from within the hillside- community and outside the hillside community. February 27, 1986 2 C-13 (Cont) 5 ecial Districts 5. To encourage "a variety of housing types, padding techniques, grading techniques, lot sizes, site design density, arrangement, and. spacing of homes and developments. 6. To encourage innovative architectural, landscaping, circulation and site design. 7. To discourage mass grading of large pads and excessive terracing. 8. To provide for safe circulation of vehicular and pedestrian traffic to and within. the hillside areas and to provide access for emergency vehicles necessary to serve the hillside areas. 9. To provide safety against unstable slopes or slopes .subject to erosion and deterioration in order to protect human lives and property. 10.. To permit only those developments which are not detrimental to the public health, safety and welfare. (Hillside Overlay District Regulations, V.E. 502.3) 13.3 Prior to approval of a zone change within the Hillside District, the following shall be depicted on topographic base maps at a scale where one- inch equals two hundred feet, or other appropriate scale, and shall be made a part of the zoning record. a. All natural features determined to be significant for their- visual or environmental function and which are to be preserved or further considered for preservation. b. All open -space areas to be offered for dedication. c. All community collector roads and arterials: and their proposed alignments. d. Development from which views to- significant features are to be preserved. e. Conceptual grading plan. • f. Conceptual landscape plan. 3 February 27,1986 C-13 (Cont) pecial Districts . il C� g. Conceptual drainage and flood control plan. Regulations, V.E. 502.5) (Hillside Overlay District 13.4 Concurrent with the. submittal of a master .plan for neighborhood or enclave size areas within the Hillside District, .the following information shall be submitted in the number and at the scale specified . by the Director of Community Development: a. A conceptual grading plan, including information necessary to determine the proposed grading concepts, elevation of pads; and natural features to be preserved. The following specific information shall be depicted: 1. Areas to be left natural. I Areas of proposed cut and fill (in contrasting colors) clearly showing where cut and fill depths ' exceed amounts established in the hillside development guidelines. 3. Contour intervals of ten (10) feet for existing and ultimate grades. b. A slope zone map for the areas underconsideration which depicts existing slope zones, in contrasting colors, in, accordance with the adopted village slope zone map. c. An updated village conceptual drainage and flood control plan for the area under consideration. d. A conceptual landscape plan which addresses the landscape treatment for the area under consideration. e. Photographic renderings, view analysis, three-dimensional models. and other information as required by the Director of Community Development. (Hillside Overlay District Regulations, V.E. 503.2) 13.5 Prior to approval of 'a master plan within the Hillside District, the Planning Commission shall first find that: a.. The proposed development concepts and plans are, compatible with the natural topography of the site; and, 4 Febmary 27,1986 C-13 (Cont) ecial Districts i • b. Are in conformance with the spirit and intent of the. hillside development district guidelines and .the following policies. L . To preserve the most visually significant slope banks and ridgelines in their natural state by clustering development into meaningful neighborhood units. 2. To minimize the effects of grading and ensure that the natural character of the hillside is retained. 3. To preserve visually significant rock outcroppings,, dative plant materials, natural hydrology, and areas. of historical or visual significance identified by the general plan or through the environmental impact report procedure to the maximum extent possible. 4. To preserve views of significant visual features as viewed both from within the, hillside community and outside the hillside community. 5. To encourage a variety_ of housing types, padding techniques, grading techniques, lot sizes, site design, density, arrangement, and spacing of homes and developments. 6. ' To encourage innovative architectural, landscaping, circulation and site design. 7. To discourage mass grading of large pads and excessive terracing. 8. To provide for safe circulation of vehicular and pedestrian traffic to and within the hillside areas, and to provide access for emergency vehicles necessary to serve -the hillside areas. 9. To provide safety against unstable slopes or slopes subject to erosion and deterioration in order ' to protect human lives and property. 10. To permit only those developments which are not detrimental to the public health, safety and welfare. (Hillside Overlay District Regulations, V.E. 502.3) February 27,1986 5 C-13 (Cont) Special Districts 13.6 i • 13.7 Concurrent with the submittal of a tentative map within the Hillside District, the following information shall be submitted in the number and at the scale specified by the Director of Community Development for review and approval by the Planning Commission: a. Any required conditional use permits for cluster residential development.. b. Erosion control plans. c. Landscape plans. d. -Grading plans. e. Precise drainage and flood control plans. f. Photographic renderings, view. analysis, three-dimensional models, and other information as required by the Director of Community Development. Note: Subject to the approval of the Planning Commission, Items b. through e. may be submitted at at later time for approval by the Director of -Community Development. (Hillside District Regulations, V.E. 503.2) Prior to approval of a tentative map within the Hillside District_, the Planning Commission shall find that: a. The proposed development concepts .and plans are compatible with 'the natural topography of the site; and, b. Are in conformance with the spirit and- intent of the hillside development district guidelines and the following policies: 1. To preserve the most visually significant slope banks and ridgelines, in their natural state by clustering development into meaningful neighborhood units. 2. To minimize the effects of grading and ensure that the natural character of the hillside is retained. February 27,1986 C-13 (Cont) Special Districts 3. To preserve visually significant rock outcroppings,, native plant materials, natural hydrology,, and areas, of historical or visual significance identified by the general plan or through the environmental impact report procedure to the maximum extent possible. 4. To preserve views of significant visual features as- viewed both from. within the hillside community and outside the hillside community. 5. To encourage a variety, of housing types, padding techniques, grading techniques, lot sizes, site design density, arrangement, and spacing of home's and developments. 6. - To encourage innovative architectural, landscaping, circulation and site.design. 7. To discourage mass grading of large pads and excessive terracing. 8. To provide. for safe circulation :of vehicular and pedestrian traffic to and within the hillside areas and to provide access for emergency vehicles necessary to serve the hillside areas. 9. To provide. safety against unstable slopes or slopes subject to erosion and deterioration in order to protect human lives and property. 10. To permit only those developments which are not detrimental to the public health, safety and welfare. (Hillside Over -lay District Regulations, V.E. 5.02.3) 13.8 Prior to the issuance of grading permits within the Hillside District, prints of the final grading plans in the number and at the scale specified by the Director of Community Development, shall be submitted to and approved by the Director of Community Development.. The Director , of Community Development shall approve the final grading plans only if he finds they are in substantial conformance with the conceptual grading plans previously approved by the Planning Commission and the City Council. In the absence of previous conceptual grading plan approval by the Planning Commission --or City Council, 7 February 27,1986 C-13 (Cont) Special Districts the approval of the final grading plan shall be granted by ,the Planning Commission. (Hillside Overlay District Regulations, V.E. 502.3) 13.9 Development within the Hillside District shall not be permitted within the -main habitat portions of designated wildlife habitats as defined by the City's General Plan. (Hillside Development Guideline 1 C) • 1310 Development within the Hillside District shall not be permitted on identified seismic or geologic hazard areas (Seismic Response Zones 4 and 5), natural springs, perched water tables, faults, fracture zones, and where bedding planes project.out of the slope. An exception to the above may only be made following the City's review. and acceptance of a detailed geologic or soil engineer's report certifying the site safe for development. (Hillside Development Guideline 1 F) 13.11 Development within the Hillside District shall be located to preserve and protect significant historical, archaeological and paleontological sites in .accordance with the policies of the General Plan. (Hillside Development Guideline 1 G) 13.12' Roadway design within the Hillside District should reflect a rural rather than urban character and have sensitive alignments which preserve the natural topography and avoid environmentally sensitive areas. (Hillside Development Guideline 6 A) 13.13 Development within the Hillside District should be concentrated on relatively level areas (slope zones 1 and 2) with visually prominent hillsides, identified for preservation at the Planned Community zoning level, left undisturbed. (Hillside Development Guideline 1 A [11) February 27,1986 C-13 (Cont) Special Districts 13.14 i As slope increases within the Hillside District, architectural innovation should substitute for grading solutions in the design of hillside developments. The following shall serve as, a guide within a particular slope zone, with the exception that where approved by the Planning_ Commission, the ,guidelines for one zone may be applied to limited portions of an adjacent zone in order to permit the extension of a logical design concept. Slope' Percent Zone _Slone_ Location Character Guidelines .1 Less than 10% This is not a hillside condition. - Mass grading 1 with conventional fully padded lots and terracing are acceptable. - 2 10% to 19.9% Development with mass grading may occur in this zone, but existing landforms must retain. their . natural character: Padded building sites - are permitted on these slopes, but -split level, architectural prototypes, with stacking and clustering are expected. - 3 20% to29.9% Special hillside architectural and design techniques are required within slope zone I Architectural prototypes are expected to conform to the natural landform. Mass grading is to -be discouraged. 4 30% and greater Development should not normally be approved, within this zone, except for less visually prominent slopes, and then only in areas where it can be .clearly demonstrated that safety, environmental and aesthetic impacts. will be minimized. Only limited grading2 is expected: A Conditional Use Permit is required. (Hillside Development Guideline 1 A 2) 1 Mass Grading is defined as the movement for redistribution of large quantities of earth over large areas. Disruption of the majority of the on -site surface terrain is common. Unless sensitively completed, modification or elimination of major and minor natural landforms may result. 0 2 Limited Grading is defined as the movement of earth for small projects such, as individual building foundations, driveways, local roadways, utility excavations, etc. E February 27,1986 C-13 (Cont) ecial Districts 13.15 Precise identification of major and minor,ridgelines within the Hillside District is to be completed during the zoning review process. - Ridgelines. of major significance should be left undisturbed or development positioned so as not to be - visible from the valley below. Development of ridgelines. of minor significance is permitted where the natural profile can be retained with no abrupt changes in grade and where development and attendant improvements are least visible from other development (existing and. future) and roads below: - Ridgelines not identified as "significant" may be developed as appropriate in .accordance with other- applicable hillside development guidelines. (Hillside Development Guideline 1 B) 13.16 Development within the Hillside District shall preserve existing areas of vegetation identified as significant at the zoning level. Additionally, development shall attempt to preserve other existing trees, riparian vegetation, native plant communities and significant rock outcroppings within the context of the development plan. (Hillside Development Guideline 1 D) 13..17 Development within the Hillside District - should be set back a minimum of 50 feet from existing lakes, reservoirs and. significant natural drainage courses identified at the zoning level, unless it is demonstrated .that environmental function of the water feature is not impaired and that public access is not restricted. (Hillside Development Guideline 1 D) 13.18 Where visually significant features have been identified within the Hillside District during the zoning process, development should be located to generally preserve views of them from existing and future development and roads. (Hillside Development Guideline 1 H) 13.19 Grading and its potential adverse effects within the Hillside District shall be minimized by:: a: Concentrating high density development on relatively flat land (slope zones 1 and.2) according to the guidelines for the location and character of f development (Measure 13.14). b. Designing structures to fit hillside sites within slope zones 2-4 rather than altering the landform to accommodate large flat pads and terraces. c. Not approving development designs which would require cut or, fill in • excess of thirty (30) feet in vertical height. Higher cut and fill heights are 10 February27,1986 ' C-13 (Cont) Special Districts E permitted only in exceptional circumstances where specifically approved by the Planning Commission., d. Except for road and utility construction in accordance with approved plans, prohibiting grading until a tentative - map has been approved for the area. Grading for borrow or disposalof earth outside of tract boundaries may be approved by the Planning Commission provided. plans conform to an approved village level conceptual grading plan and residents in the area have been advised in advance. e. Requiring that grading plans include mitigating measures that will reduce to acceptable safety levels underground water seepage .problems which may occur because of increased irrigation or alteration of the natural contours. (Hillside District Development Guideline 2)- 13.20 Grading and its potential adverse effects within the Hillside .District 'shall be minimized by: a.,. Concentrating- high .density development on relatively flat land (slope zones 1 and 2) according to the guidelines for the location and character of development (Measure 13.14). b. Designing structures to fit hillside sites within slope zones 2-4 rather than altering the landform to accommodate large flat pads and terraces. c. Using flexible hillside street standards within slope zones 2-4 according to the guidelines for "roadways". d. Not approving development designs, which would require cut or fill in excess of thirty (30) feet in vertical height. Higher cut and -fill heights are permitted only in exceptional circumstances where specifically approved by the Planning Commission: e. Requiring that grading plans include mitigating :measures- that will reduce to acceptable safety levels underground water seepage problems which may occur because of increased :irrigation or alteration of the natural contours. (Hillside District Development Guideline 2) February 27,1986 11 C-13 (Copt) Special Districts 13.21 a Grading and its potential adverse effects within the Hillside District shall be minimized by: a. Designing structures to fit hillside sites. within slope zones 2-4 rather than altering the landform- to accommodate large flat pads and terraces. _ b. Designing structures to fit hillside sites within slope zones 2-4 rather than altering the landform to accommodate large flat pads and terraces. c.' Requiring re -vegetation of cut and fill slopes according to the guidelines for "landscaping" included in the Hillside Development Manual. d. Using flexible hillside street standards -within slope zones 24 -according -to the guidelines for "roadways". e. Not approving_ development designs which' would require cut or fill in excess of thirty (30) feet in vertical height. Higher cut and fill heights are permitted only in exceptional circumstances where specifically approved by the Planning Commission. f. Requiring all manufactured slopes within slope -zones 2-4 to be contour graded3, so as to present a natural appearance and blend with the natural topography. g. Require bonds to insure that temporary uses such as, mineral extraction, sanitary landfills, borrow operations, etc. restore the topography to as close to a natural appearance as possible.. h. Requiring that grading plans, include mitigating measures that will reduce to acceptable safety levels underground water seepage problems which may occur - because of increased irrigation or alteration of the natural contours. (Hillside District Development Guideline 2) 13.22 New landscape materials introduced as transitional plantings within the Hillside District shall be used .to integrate the man-made and- natural environments, to . 3 Contour Grading is defined as the movement of earth in such a manner that the final earth form has a natural appearance. This is accomplished by rounding and smoothing sharp, angular forms, and avoiding flat, two' dimensional surfaces. Contour grading techniques may _be applied to both conventional mass grading.and limited grading projects. February 27,1996 12 C-13 (Cont) ecial Districts screen and soften the visual impact of development and to provide privacy within existing adjacent development. Landscape materials -shall also provide diversity within the developed areas. The City's Plant Selection Guide (Appendix A of the Hillside Development Manual) shall be used in considering the appropriate plant materials. Temporary -or permanent irrigation systems will be required only where necessary to sustain the plant materials 'selected. • (Hillside Development Guideline -3 B) 13.23 Development within the. Hillside District shall- attempt to preserve and protect existing trees, . riparian vegetation and native plant communities within the context of the development plan. (Hillside Development Guideline 3 -A) 13.24 Where feasible all landscaped common areas within the Hillside District shall use. recycled water when permanent irrigation is required and the supply of recycled water supply is adequate. (Hillside Development Guideline 3 C) 13.25 All cut and fill slopes within the Hillside District shall be planted in accordance with an erosion control plan approved by the Director of Community Development and, where appropriate, the Regional Water Quality Control -Board. (Hillside Development Guideline 3 D) 13.26 Areas within the Hillside District adjacent to creeks and natural drainage swales shall be kept as much as practical in their -natural state, consistent with the need to minimize flood and erosion hazards. Adequate setbacks for development are a preferred alternative to stream channelization in hillside areas. Open greenbelt swales are a preferred alternative to undergrounding or open concrete lined channels. (Hillside Development Guideline 4 A) 13.27 Where channelization projects are found necessary within the Hillside District, they should be part of a larger open space system, be landscaped to, blend with the surroundings, and include trail and linear parks along their banks as part of the overall open space system. (Hillside Development Guideline 4 B) 13.28 Interceptor ditches within the Hillside District shall be established only where necessary above cut/fill slopes, and -the intercepted -water conveyed to a stable channel or natural drainageway with adequate capacity. (Hillside Development Guideline 4 C) 13 February27,1986 C-13 (Cont) Special Districts 13.29 Curb, gutter and pavement design within the Hillside District shall prevent water on -roadways from flowing off -the roadway in an uncontrolled fashion. (Hillside Development Guideline 4 D) 13.30 Natural drainageways within the Hillside District shall be riprapped or otherwise stabilized below drainage and culvert discharge points for a distance sufficient to minimize channel erosion. (Hillside -Development Guideline 4 E) 13.31. Runoff from areas -of concentrated impervious 'cover (e.g., roofs, driveways, roads) within the Hillside District shall be conveyed to a natural drainageway or drainage structure with sufficient capacity to accept the discharge- without undue erosion. The effects of new drainage patterns on ,existing, systems shall be accounted for in the_ design of the project drainage, plan. (Hillside Development Guideline 4 F) 13.32 Sediment catchment basins and other erosion/siltation control devices within the Hillside District shall be. constructed and maintained in accordance with an overall erosion control plan approved by the Director of Community Development and. the Regional Water Quality- Control Board. (Hillside Development Guideline 4 G) 13.33 Within the Hillside District, a project's overall drainage - system shall be completed and made operational at the earliest practical time during construction. (Hillside Development Guideline 4 H) 13.34 Where significant visual features have been identified within the Hillside District during the, zoning review process, views of these features from roads and -existing and future development should be preserved wherever practical. (Hillside Development Guideline 5 A) 13.35 Homes within the Hillside District should be , oriented to maximize view opportunities, but unrestricted views .should not be expected and the privacy of others should not be unduly sacrificed. Wherever views from homes are to be preserved, view easements shall be identified and made part of the community associations' Conditions, Covenants and Restrictions (CC&R's). (Hillside Development Guideline 5 B) 13.36 Public vista areas and view corridors along roadways within the Hillside District should be established and protected. View -corridors provided for moving vehicles should be at an angle to the direction of travel or directly on the road 14 February27,1986 C-13 (Cont) Special Districts axis to allow meaningful viewing time, as depicted in Hillside Development Guideline 5 C. (Hillside Development Guideline 5 C) 13.37 Variations in the City's established roadway standards within the Hillside District shall be carefully considered for reduction in slope zones 2, 3 and 4 where safety and circulation considerations justify.. (Hillside Development Guideline 6 B) . 13.38 Within the Hillside District, sidewalks should only be required in slope zones 2, 3 and 4 when other means of safe and convenient pedestrian circulation is not available and then only in accordance with a carefully conceived total pedestrian circulation plan. (Hillside Development Guideline 6 C) 13.39 Within the Hillside District, grading for roadways in slope zones 2, 3 and 4. should have slopes rounded to blend- with the natural topography. Manufactured slopes shall be landscaped in accordance with the City's landscape guidelines. (Hillside Development Guideline 6 D) 13.40 Hillside development within "high" and "extreme". fire hazard zones, shall be designed to reduce; fire hazards in accordance with the requirements. of the Orange County Fire Marshall and the Hillside Development Guideline 7 A. (Hillside Development Guideline 7 A) 13.41 Within the Hillside District, access to special, endangered, rare or fragile plant and animal habitats shall be limited, with public access. carefully managed to prevent disruption of the area's natural values. (Hillside Development Guideline 8 A) 13.42 Within the Hillside District, public access to public resources shall be provided, where appropriate, in accordance with the requirements of the Irvine Subdivision Ordinance (Section V.F. 801 et. seq.) (Hillside Development Guideline 8, B) 13.43 Development within the Hillside District, which borders permanent open 'space - shall provide for fire hazard reduction zones in accordance with the Fire Protection Guidelines. Maintenance of these buffer areas shall be the responsibility of the respective landowner or community association. (Hillside Development Guideline 8 C) 15 February 27,1986 C-13 (Cont) Special Districts i • Coastal Zone. 13.44 All uses proposed within .the coastal zone, other, than those associated with the manufacturing. process of industries engaged primarily in'research and/or testing and industries engaged in light manufacturing, shall obtain a coastal permit in accordance with Sections V.E. 736.2 and V.E. 814 of the Irvine Zoning Ordinance. Prior to approval of the proposed use, the decision making body shall find that the proposal is in conformity with the certified local coastal program, and where applicable, with the public access and recreational policies of Chapter 3 of the Coastal Act. (Irvine Zoning Ordinance V.E. 814) February27,1986 16 L Air,Quality Subbasins 13.55 Locate land uses to encourage access by non_automotive means. (General Plan Policy D-3 c) 13.46 Concurrent with the submittal of an application for a project of statewide, regional or area -wide significance,4 or a project located within an area of suspected high concentrations of pollutants, the applicant shall submit an air quality analysis conforming to the Guidelines 'of Appendix C of the. Environmental Review .Matrix. All feasible mitigation. , measures to reduce significant adverse effects identified in the analysis shall be, incorporated into the project plans. (Environmental Review Matrix) 13.47 Concurrent with the submittal of an application for a project with potentially offensive odors, the applicant shall submit an odor dispersion analysis. All feasible mitigation measures to reduce -significant adverse effects identified in the analysis shall be incorporated into the project plans. (Environmental Review Matrix) 13.48 Concurrent with 'the submittal of an application at this level of review, the Director of Community_ Development may require the applicant to supplement a previously completed air quality - analysis in order to- fully reflect the current project proposal. All feasible mitigation measures to reduce significant adverse effects identified in the analysis shall be incorporated into the project plans. (Environmental Review Matrix) 13.49 Concurrent with the submittal of the -.application at ''this level of review, the Director of Community Development may require the applicant to supplement a previously completed odor dispersion analysis in order to fully reflect the current project proposal. All feasible mitigation measures to reduce significant adverse effects identified in the analysis shall be incorporated into the project plans. (Environmental Review Matrix) • 4 As defined by the CE A Guidelines Section 15206 Q February27,1986 13.50 Development shall incorporate-, -to the extent feasible, the -following design features in project plans: a. Street layouts which maximize solar access and natural ventilation. b. Building orientation which maximizes solar access, natural ventilation, and which minimizes conflicts of solar access with adjacent structures or properties. c. Energy efficient landscaping (water conserving plants, indigenous vegetation and use of'on-site water run-off). d. Landscaping which provides cooling opportunities during summer and which minimizes conflicts with solar access during winter. e. Cluster and/or planned unit development. f. South slope utilization in hillside development. (General Plan Policy I-1 a) 13.51 Traffic signals shall be the minimum necessary in accordance with transportation engineering safety, be properly spaced, and be connected to the City's traffic signal control system. (General'Plan Policy D-2 i) 13.52 Concurrent with the application at this level of review, the applicant shall submit pedestrian and bicycle circulation plans detailing access to the project in accordance with the following policies (General Plan Policy D-4 k): a. Provisions for citywide bicycle trails shall be in accordance with General Plan Figure D-3. (General Plan Policy D-4 a and Capital Improvements Policy) b. Each village shall contain a system of bike trails, both on- and off- street, to meet local demand. The trail system shall meet the demands of both the recreational and experienced cyclist. (General Plan Policy A-5 g, D-4 b) c. Principal destinations such as schools, parks community centers, and shopping centers shall be linked to residential areas. Trails shall be continuous through villages, matching desired trip routes. (General Plan Is Policy D-4 b, j) February 27,1986 d. Villages shall contain a system of pedestrian trails with - direct and convenient links to schools, shopping centers, and other public facilities with residences. (General Plan Policy D-3 a,b) e. All bicycle trip destinations, including schools, shopping areas, and transit stops shall be equipped with bike racks. (General Plan Policy D-4 c) f. - Adequate traffic control -devices shall be, provided- for bicycle, crossings in accordance with the City's standard plans for such crossings. (General Plan Policy D-4 f and Standard Plans) 13.53 Shopping centers shall be designed for pedestrian access. (General Plan Policy D-3 d) 13.54 Encourage development of shared energy facilities in major commercial projects where cost effective, such as: a. District wide heating/cooling systems. b. Solar water heating. c. Photovoltaics.. (General Plan Policy I-1 c,) 13.55 Encourage and promote incorporation. - of energy conservation measures developed in conjunction with the applicant, including: a. Active solar water and/or space heating b. Passive design features for heating and cooling c. Use of energy efficient devices. (General Plan Policy B-3 c, E'-1 b) 13.56 Concurrent with the filing of a tentative. map, the subdivider shallsubmit a statement identifying the energy conservation measures incorporated into the design of the project, such as but not limited to the orientation and configuration of lots, units and buildings to take maximum advantage of prevailing winds and relative position of the sun. (V.E. 700:2 [151) 13.57 Concurrent with the filing of a tentative map within an area requiring a transportation . management plan, the applicant shall, submit a transportation management plan for approval'of, the Transportation Commission. The plan shall • ' address but not limited to the following measures: Febniary 27,1986 a. Flex time and/or shifting work schedules to avoid peak traffic b. Employee car and van pools c. Preferential and free parking for car and van poolers d. Ridesharing programs e. Shuttle services from regional transportation stations to final destination f. Subsidies for transit passes g. Locker room facilities for employees (General Plan Policy I-1 i) 13.58 Prior to recordation of the final map, the subdivder shall` construct or post security guaranteeing the construction of the- following public and/or private improvements in conformance with applicable City standards and the City's Capital Improvement Policy: a. Trail lighting, signing, and striping. b All bicycle and pedestrian trails as.required. by the City's Master Plans. Plans for improvements. shall be approved by the City Engineer. Plans for signing- and striping shall be approved by the City Engineer with the concurrence of the Manager of Transportation Services. If the above work is to be bonded for, the construction of improvements for any portion of the- project must be completed prior to the issuance of certificates of use and occupancy for that portion of the project or a time certain to be established at the ,time of bond acceptance. (Excerpted from Standard Subdivision Condition 1.1) 13.59 For any type of trail, a non-exclusive easement for public use of that trail shall record concurrently with any final map containing the trail. (Standard Subdivision Condition 1.4) 13.60 All stationary emission sources shall comply with the regulations adopted by the South Coast Air Quality Management District. (General Plan Policy 1-e,g,h,j; V.E. 736.4 (2); and South Coast Air Quality Management District Regulations) 13.61 Prior to the issuance of building permits -for new industrial uses, or modifications to existing industrial uses, the applicant shall provide evidence demonstrating • compliance with the South Coast Air Quality Management District Regulations February27,1986 9 Section II, Permits; and 'Section XIII, New Source Review: (SCAQMD Regulations II and XIII) 13.62 Encourage developers to -use, the residential Title 24 energy .. conservation standards for structures over f6ur stories. (General Plan Policy I=1:e) . 13.63 Encourage developers to use the commercial Title 24 energy conservation standards for commercial office buildings. (General Plan Policy I-1 f) 13.64 Concurrent with an application for a- grading permit; the applicant shall propose suppression measures for fugitive dust in accordance with South Coast Air Quality Management District's Rule 403. These measures shall be incorporated as conditions of any grading permit prior to issuance. (V.E. 736:4(5) and South Coast Air Quality Management District Rule 403). February 27,1986 SECTION VI WORKSHEETS r� IRVINE Wor.ksheet MEA -Project Title: Project No. Level of Review: GP CP ZC TT MP CUP CON Initial Study No. Land 'Use Impact Intensities: Low Medium - High Special (See Section IV)` Instructions: 1) List constraint map codes applicable to project site in left hand column. 2) Refer to Impact Models for associated mitigation measures, and list in right hand column. 3) Retain this worksheet with initial study and project, files. Man No. Mar) Code/Interpretation, Mitiaation Codes C-1 C-2 W C-11 C-12 IL 13 IF Completed by Dale: _ Worksheet IRVINE MEA Project Title: Project No. Level of Review. GP CP ZC- TT * MP CUP CON Initial -Study No. Land Use Impact Intensities: Low Medium High Special (see sectioniv) Instructions: 1) List constraint map codes applicable to project site in left hand -column.. 2) Refer to Impact Models for associated mitigation measures, and list in right hand column. 3) Retain this worksheet with initial study and project files. Map No. Map Code/Interpretation Mitigation Codes C-1 C-2 C-6 C-7 C-8 C-9 C-10 C-11 C-12 13 Completed by. -......Date: Works-heet IRMEA Project Title: Project No. Level of Review: GP CP ZC TT MP CUP CON Initial Study No. Land Use Impact Intensities: Low Medium High Special (See Section Iv) Instructions: 1) List constraint map codes applicable to project site in left hand column. 2) Refer to Impact Models for associated mitigation measures, and list in right hand column. 3) Retain this worksheet with -initial study and project f les. Map No. Map-Code/Interpretation Mitigation Codes C-1 kk C-B C-6 C-7 IAW C-9 C-10 C-11 C-12 13 Completed by: Date. Worksheet IRVINE MEA Project Title: Project No. Level of'Review: GP CP ZC TT MP CUP CON Initial Study No. Land Use Impact Intensities: Low Medium High Special (See Section IV) Instructions: 1) List constraint map codes applicable to project site in left hand column' 2) Refer to Impact Models for associated mitigation measures, and list in right hand column. 3) Retain this worksheet with initial study andproject f les. Map No. Map Code/Interpretation Mitigation Codes C-1 C-2 C-3 C-4 C-5 C-6 C-7 C-8 C-9 C-10 C-11 C-12 13 Completed by: ®ate: