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PA2022-0254_20230113_Revised WQMP Report dated 01-12-23
PA2022-0254 Priority Project Preliminary Water Quality and Management Plan (pWQMP) Project Name: HORTON RESIDENCE Prepared for: Steve & Francine Horton 76 Linda Isle Newport Beach, CA 92660 Tel: (408) 615-3412 Prepared by: Toal Engineering, Inc. 139 Avenida Navarro San Clemente, CA 92672 Tel: (949) 492-8586 ______________________ Adam Toal R.C.E 59275 Date Prepared: 1/12/23 JN 22021 Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton residence Table of Contents JN 22021 Page 2 This Preliminary Water Quality Management Plan (pWQMP) has been prepared for Steve & Francine Horton by Toal Engineering, Inc. The pWQMP is intended to comply with the requirements of the County of Orange NPDES Stormwater Program requiring the preparation of the plan. The undersigned, while it owns the subject property, is responsible for the implementation of the provisions of this plan , including the ongoing operation and maintenance of all best management practices (BMPs), and will ensure that this plan is amended as appropriate to reflect up-to-date conditions on the site consistent with the current Orange County Drainage Area Management Plan (DAMP) and the intent of the non-point source NPDES Permit for Waste Discharge Requirements for the County of Orange, Orange County Flood Control District and the incorporated Cities of Orange County within the Santa Ana Region. Once the undersigned transfers its interest in the property, its successors-in-interest shall bear the aforementioned responsibility to implement and amend the WQMP. An appropriate number of approved and signed copies of this document shall be available on the subject site in perpetuity. Owner: Title Steve & Francine Horton Company N/A Address 76 Linda Isle, Newport Beach, CA 92660 Email Steve.Horton@Cushwake.com Telephone # (408)615-3412 I understand my responsibility to implement the provisions of this WQMP including the ongoing operation and maintenance of the best management practices (BMPs) described herein. Owner Signature Date Project Owner’s Certification Planning Application No. (If applicable) PA2022-0254 Grading Permit No. TBD Tract/Parcel Map and Lot(s) No. Lot 76 Tract 4003 Building Permit No. TBD Address of Project Site and APN (If no address, specify Tract/Parcel Map and Lot Numbers) 76 Linda Isle, Newport Beach APN 050‐451‐35 Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton residence Table of Contents JN 22021 Page 3 Contents Page No. Section I Permit(s) and Water Quality Conditions of Approval or Issuance .......... 4 Section II Project Description .................................................................................. 5 Section III Site Description ........................................................................................ 8 Section IV Best Management Practices (BMPs) ...................................................... 11 Section V Inspection/Maintenance Responsibility for BMPs ................................. 32 Section VI Site Plan and Drainage Plan ................................................................... 33 Section VII Educational Materials ............................................................................. 35 Attachments Attachment A . .......................................................................................... BMP Fact Sheets Attachment B . .................................................................................. Educational Materials Attachment C .......... Operation & Maintenance Plan(Will be provided with Final report) Attachment D . .................................................... Kristar Flogard Filter Insert Spec Sheets Attachment E . .................................................................... Soils report recommendations Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton residence Section II JN 22021 Page 4 Section I Permit(s) and Water Quality Conditions of Approval or Issuance Project Information Permit/Application No. (If applicable) TBD Grading or Building Permit No. (If applicable) TBD Address of Project Site (or Tract Map and Lot Number if no address) and APN 76 Linda Isle, Newport Beach, CA 92660 APN 050-451-35 Water Quality Conditions of Approval or Issuance Water Quality Conditions of Approval or Issuance applied to this project. (Please list verbatim.) None. Conceptual WQMP Was a Conceptual Water Quality and Hydrology Plan previously approved for this project? No Watershed-Based Plan Conditions Provide applicable conditions from watershed - based plans including WIHMPs and TMDLS. Watershed: Newport Bay – Newport Coastal Streams A WIHMP has been developed for this watershed. Lower Newport Bay TMDLs: Metals Technical TMDLs Nutrients Implementation Phase Pathogens Implementation Phase Pesticides / Priority Organics Implementation Phase Siltation Implementation Phase Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton residence Section II JN 22021 Page 5 Section II Project Description II.1 Project Description Description of Proposed Project Development Category (From WQMP, Section 21.35.050): Impervious surface of 2,500 square feet or more located within, directly adjacent to (within 200 feet) or discharging directly into receiving waters within Environmentally Sensitive Areas (ESAs). Project Area (ft2): 6,974 sf Number of Dwelling Units: 1 SIC Code: 1521 Project Area Pervious Impervious Area (acres or sq ft) Percentage Area (acres or sq ft) Percentage Pre-Project Conditions 349 sf 6% 5,160 sf 94% Post-Project Conditions 572 sf 10% 4,937 sf 90% Drainage Patterns/Connections See Section III.2. Narrative Project Description: The project consists of the construction of a new single family residence with appurtenant hardscape, walls, Pool and Spa. Areas, as well as total percentage of the project area, of each different type of improvement are listed below: Lot size: 6,974 sf (0.160 ac) Project Area (Disturbed Area): 5,509 sf (0.126 ac) Building footprint: 3,214 sf (0.074 ac) 58% of project area Total proposed hardscape areas (excluding buildings): 1,723 sf (0.040 ac) 31% Total proposed pervious areas, Pool and Spa: 572 sf (0.013 ac) 10% Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton Residence Section II JN 22021 Page 6 II.2 Potential Stormwater Pollutants Pollutants of Concern Pollutant Check One for each: E=Expected to be of concern N=Not Expected to be of concern Additional Information and Comments Suspended-Solid/ Sediment E N From Roof and Landscape areas. Nutrients E N From landscaped areas. Heavy Metals E N Not expected. Pathogens (Bacteria/Virus) E N Expected from food/animal waste based on residential use. Pesticides E N From landscaped areas. Oil and Grease E N Vehicles and other mechanical development Toxic Organic Compounds E N Note expected for residential development Trash and Debris E N From typical human occupancy II.3 Hydrologic Conditions of Concern Determine if streams located downstream from the project area are potentially susceptible to hydromodification impacts. No. Yes The subject property is not located in a Potential Area of Erosion, Habitat, & Physical Structure Susceptibility per TGD Figure 4 (Appendix XVI). Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton Residence Section II JN 22021 Page 7 II.4 Post Development Drainage Characteristics See Section III.2. II.5 Property Ownership/Management Property Owner: Steve & Francine Horton Maintenance contractors may be hired by the owner to perform operations and maintenance duties. Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton Residence Section III JN 22021 Page 8 Section III Site Description III.1 Physical Setting Name of Planned Community/Planning Area (if applicable) N/A Location/Address 76 Linda Isle, Newport Beach, California General Plan Land Use Designation Single Unit Residential Zoning R-1 Acreage of Project Site 0.160 ac. (disturbed area : 0.126 ac.) Predominant Soil Type HSG-A per plate B of Orange County Hydrology Manual (1986) Soil Maps III.2 Site Characteristics Site Characteristics Precipitation Zone 0.70-inch (TGD Figure XVI-1) Topography The site contains a single-family residence with hardscape features. Surface slopes average approximately 1%. Drainage Patterns/Connections Existing drainage patterns/connections The Northerly half of the property drains in a northerly diresction into Linda Isle. The Southerly half of the property drains in a southerly direction into Newport Bay. Proposed drainage patterns/connections Run off will be collected in a series of inlets and drain pipes, filtered, and then discharged to a sump pump system located in the rear yard. Runoff will be pumped into Linda Isle Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton Residence Section III JN 22021 Page 9 Soil Type, Geology, and Infiltration Properties Per the Soils report prepared by EGA Consultant : Subsurface Soils AS encountered in our test boring, the site is underlain by silty fill sands and native materials as follows: Fill (Af) Fill sands were encountered in each of the borings to a depth of approx.. 2 to 2.5 feet below ground. The fill soils consist generally of gray and brown, moist to very moist, loos to medium dense, fine- grained silty sand with trace shell and clay blebs. The expansion potential of the fill soils was judged to be “non-expansive” when exposed to an increase in moisture content. Estuarine-Native Sands (Qes), Terrace Deposits (Qtm) and Bedrock (Tm) The fill materials are native silty sands as encountered in each of the test borings (B-1, B-2, B-3, and CPT-1). The native sands consist generally of gray and tan, moist to saturated, medium dense to dense, non-cemented, fine- to medium-grained, sand and silty sand with trace shell fragments and mica. The native sands are underlain by terrace deposits (Qtm) deposits, which are underlain by Monterey Formation ™ bedrock consisting of medium dense to very dense, fine to medium grained, moderately to well-cemented sand and siltstone to the maximum depth explored (50.5 feet below grade). Based on the geologic map correlation with the CPT probe, bedrock of the Monterey Formation (Tm) was likely encountered approx.. 12’ below grade. Per the O.C. Hydrology Manual (OCHM) (1986) Soil Map Plate B, the subject property is underlain by Hydrologic Soil Group A soils. Hydrogeologic (Groundwater) Conditions Per the Soils report prepared by EGA Consultant “According to the Orange County Water District (OCWD), there are no water wells located within the general vicinity of the subject property. The bayfront lot is located approx.. 1.5 kilometers northeast of the property. Seepage or surface water ponding was not noted on the subject site at the time of our study. Our data indicates that the groundwater encountered is subject to significant tidal fluctuation. Groundwater encountered in our test excavation at depth of approximately 6.5’ below grade. Based on our review, the groundwater lows drop slightly below mean sea level. From a construction standpoint, any excavation advanced down to within the tidal zones should be expected to experience severe caving.” Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton Residence Section III JN 22021 Page 10 Geotechnical Conditions (relevant to infiltration) The Geotechnical report does not directly discuss infiltration, however, the site is in a zone of potential liquefaction, and shallow groundwater is present. Off-Site Drainage None. Utility and Infrastructure Information Sewer and water service to the subject property is provided from Linda Isle. III.3 Watershed Description Receiving Waters Lower Newport Bay (Santa Ana Region) 303(d) Listed Impairments Lower Newport Bay is 303(d) listed by the State Water Resources Control Board for the following impairments: Chlordane, Copper, DDT, Indicator Bacteria, Nutrients, PCBs, Pesticides, and Sediment Toxicity. Applicable TMDLs Total Maximum Daily Loads (TMDLs) have been established for Copper, Indicator Bacteria, Nutrients, Pesticides and Sediment; TMDLs are proposed for the remaining 303(d) listed pollutants, but are not currently in effect. Pollutants of Concern for the Project Please See Section II.2 Environmentally Sensitive and Special Biological Significant Areas Lower Newport Bay. Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton Residence Section IV JN 20077 Page 11 Section IV Best Management Practices (BMPs) IV. 1 Project Performance Criteria (NOC Permit Area only) Is there an approved WIHMP or equivalent for the project area that includes more stringent LID feasibility criteria or if there are opportunities identified for implementing LID on regional or sub-regional basis? YES NO If yes, describe WIHMP feasibility criteria or regional/sub-regional LID opportunities. N/A Project Performance Criteria If HCOC exists, list applicable hydromodification control performance criteria (Section 7.II-2.4.2.2 in MWQMP) Per Section II.3 of this report, HCOCs do not exist for this project. List applicable LID performance criteria (Section 21.35.050 WQMP) Priority Projects must infiltrate, harvest and use, evapotranspirate, or biotreat/biofilter, the 85th percentile, 24-hour storm event (Design Capture Volume). A properly designed biotreatment system may only be considered if infiltration, harvest and use, and evapotranspiration (ET) cannot be feasibly implemented for the full design capture volume. In this case infiltration, harvest and use, and ET practices must be implemented to the greatest extent feasible and biotreatment may be provided for the remaining design capture volume. Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton Residence Section IV JN 20077 Page 12 List applicable treatment control BMP performance criteria (Section 7.II-3.2.2 from MWQMP) If treatment control BMPs can treat all of the remaining unmet volume and have a medium to high effectiveness for reducing the primary POCs, the project is considered to be in compliance. If the cost of providing treatment control BMPs greatly outweighs the pollution control benefits they would provide, a waiver of treatment control and LID requirements can be requested and alternative compliance approaches must be used to fulfill the remaining unmet volume. Calculate LID design storm capture volume for Project. DCV= 346 cubic feet See Worksheet B at the end of this subsection. Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton Residence Section VI JN 22021 Page 13 Worksheet B: Simple Design Capture Volume Sizing Method Step 1: Determine the design capture storm depth used for calculating volume 1 Enter design capture storm depth from Figure III.1, d (inches) d= 0.70 inches 2 Enter the effect of provided HSCs, dHSC (inches) (Worksheet A) dHSC= 0.00 inches 3 Calculate the remainder of the design capture storm depth, dremainder (inches) (Line 1 – Line 2) dremainder= 0.70 inches Step 2: Calculate the DCV 1 Enter Project area tributary to BMP (s), A (acres) A= 0.160 acres 2 Enter Project Imperviousness, imp (unitless) imp= 0.94 3 Calculate runoff coefficient, C= (0.75 x imp) + 0.15 C= 0.85 4 Calculate runoff volume, Vdesign= (C x dremainder x A x 43560 x (1/12)) Vdesign= 346 cu-ft Step 3: Design BMPs to ensure full retention of the DCV Step 3a: Determine design infiltration rate 1 Enter measured infiltration rate, Kmeasured (in/hr) (Appendix VII) Kmeasured= In/hr 2 Enter combined safety factor from Worksheet H, Sfinal (unitless) Sfinal= 3 Calculate design infiltration rate, Kdesign = Kmeasured / Sfinal Kdesign= In/hr Step 3b: Determine minimum BMP footprint 4 Enter drawdown time, T (max 48 hours) T= Hours 5 Calculate max retention depth that can be drawn down within the drawdown time (feet), Dmax = Kdesign x T x (1/12)Dmax= feet 6 Calculate minimum area required for BMP (sq-ft), Amin = Vdesign/ dmax Amin= sq-ft Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton Residence Section VI JN 22021 Page 14 IV.2. Site Design and Drainage Overview The ultimate plan of development for the proposed project is shown on the BMP Site Plan in Section VI of this report. The project Grading and Drainage Plan shows the proposed grading, drainage improvements, and site improvements associated with construction of the proposed residential building. Site Design Practices The project incorporates Site Design practices as follows: Minimize Impervious Area – although the subject property lies in a densely developed mixed-use area with similar development and space constraints preclude the use of some site design practices, the proposed project does the following to minimize impervious area: o Increases the pervious area fraction of the subject property. o Utilizes multi-floor buildings Preserve Existing Drainage Patterns and Time of Concentration – The ultimate points of discharge are the same for the pre- and post-project conditions. Time of concentration will be similar, since pre- and post-project flow path lengths will be similar. Drainage Management Areas (DMAs) This small site is covered by a single DMA. DMA statistics are tabulated below. DMA‐1 Total Area (sf) 5,509 Impervious Area (sf) 5,160 Pervious Area (sf) 572 imp 0.94 C 0.85 d (In) 0.7 DCV (cf) 346 Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton Residence Section VI JN 22021 Page 15 IV.3 LID BMP Selection and Project Conformance Analysis Each subsection below documents that the proposed design features conform to the applicable project performance criteria via check boxes, tables, calculations, narratives, and/or references to worksheets. IV.3.1 Hydrologic Source Controls (HSCs) The Hydrologic Source Controls to be used for this project are indicated in the table below. Implementation of said controls is discussed in the text that follows. Name Included? Localized on-lot infiltration Impervious area dispersion (e.g. roof top disconnection) Street trees (canopy interception) Residential rain barrels (not actively managed) Green roofs/Brown roofs Blue roofs Impervious area reduction (e.g. permeable pavers, site design) Other: Hydrologic Source Controls have not been used due to space constraints, including landscape area size and proximity to structure foundations. Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton Residence Section VI JN 22021 Page 16 IV.3.2 Infiltration BMPs Infiltration BMPs to be used for this project are indicated in the table below. Implementation of said controls is discussed in the text that follows. Name Included? Bioretention without underdrains Rain gardens Porous landscaping Infiltration planters Retention swales Infiltration trenches Infiltration basins Drywells Subsurface infiltration galleries French drains Permeable asphalt Permeable concrete Permeable concrete pavers Infiltration tis not feasible for this project. See the Infiltration BMP Feasibility Worksheet in this subsection. Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton Residence Section VI JN 22021 Page 17 Table 2.7: Infiltration BMP Feasibility Worksheet Infeasibility Criteria Yes No 1 Would Infiltration BMPs pose significant risk for groundwater related concerns? Refer to Appendix VII (Worksheet I) for guidance on groundwater-related infiltration feasibility criteria. X Provide basis: Infiltration BMPs will not pose a significant risk to local groundwater. Groundwater in the vicinity of the project site is not used for drinking water. 2 Would Infiltration BMPs pose significant risk of increasing risk of geotechnical hazards that cannot be mitigated to an acceptable level? (Yes if the answer to any of the following questions is yes, as established by a geotechnical expert): The BMP can only be located less than 50 feet away from slopes steeper than 15 percent The BMP can only be located less than eight feet from building foundations or an alternative setback. A study prepared by a geotechnical professional or an available watershed study substantiates that stormwater infiltration would potentially result in significantly increased risks of geotechnical hazards that cannot be mitigated to an acceptable level. X Provide basis: Infiltration BMPs can not be located at least 8-feet from building foundations. 3 Would infiltration of the DCV from drainage area violate downstream water rights? X Provide basis: There are no downstream water right holders since site drainage is conveyed via the city storm drain system directly to receiving waters (Lower Newport Bay). Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton Residence Section VI JN 22021 Page 18 Table 2.7: Infiltration BMP Feasibility Worksheet (continued) Partial Infeasibility Criteria Yes No 4 Is proposed infiltration facility located on HSG D soils or the site geotechnical investigation identifies presence of soil characteristics which support categorization as D soils? X Provide basis: Proposed facility is located on HSG-A soils per OCHM Soil Maps. 5 Is measured infiltration rate below proposed facility less than 0.3 inches per hour? This calculation shall be based on the methods described in Appendix VII. X Provide basis: Infiltration rate is presumed to be greater than 0.3 inches per hour based on site’s HSG. 6 Would reduction of over predeveloped conditions cause impairments to downstream beneficial uses, such as change of seasonality of ephemeral washes or increased discharge of contaminated groundwater to surface waters? X Provide citation to applicable study and summarize findings relative to the amount of infiltration that is permissible: No downstream beneficial uses such as ephemeral washes or groundwater sources of drinking water are located downstream of the subject property. 7 Would an increase in infiltration over predeveloped conditions cause impairments to downstream beneficial uses, such as change of seasonality of ephemeral washes or increased discharge of contaminated groundwater to surface waters? X Provide citation to applicable study and summarize findings relative to the amount of infiltration that is permissible: No downstream beneficial uses such as ephemeral washes or groundwater sources of drinking water are located downstream of the subject property. Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton Residence Section VI JN 22021 Page 19 Table 2.7: Infiltration BMP Feasibility Worksheet (continued) Infiltration Screening Results (check box corresponding to result): 8 Is there substantial evidence that infiltration from the project would result in a significant increase in I&I to the sanitary sewer that cannot be sufficiently mitigated? (See Appendix XVII) Provide narrative discussion and supporting evidence: No evidence of I&I has been provided by the local sewer agency (City of Newport Beach). 9 If any answer from row 1-3 is yes: infiltration of any volume is not feasible within the DMA or equivalent. Provide basis: X 10 If any answer from row 4-8 is yes, infiltration is permissible but is not presumed to be feasible for the entire DCV. Criteria for designing biotreatment BMPs to achieve the maximum feasible infiltration and ET shall apply. Provide basis: 11 If all answers to rows 1 through 10 are no, infiltration of the full DCV is potentially feasible, BMPs must be designed to infiltrate the full DCV to the maximum extent practicable. Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton Residence Section VI JN 22021 Page 20 IV.3.3 Evapotranspiration, Rainwater Harvesting BMPs Evapotranspiration and/or Rainwater Harvesting BMPs to be used for this project are indicated in the table below. Implementation of said controls is discussed in the text that follows. Name Included? All HSCs; See Section IV.3.1 Surface-based infiltration BMPs Biotreatment BMPs Above-ground cisterns and basins Underground detention Other: Other: Other: The project site does not have an irrigation demand large enough to justify partial capture for irrigation demand. See Worksheet J from Section X of the TGD on the following page. Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton Residence Section VI JN 22021 Page 21 Worksheet J: Summary of Harvested Water Demand and Feasibility 1 What demands for harvested water exist in the tributary area (check all that apply): 2 Toilet and urinal flushing □ 3 Landscape irrigation □ 4 Other:_______________________________________________________ □ 5 What is the design capture storm depth? (Figure III.1) d .70 inches 6 What is the project size? A 0.160 ac 7 What is the acreage of impervious area? IA 0.184 ac For projects with multiple types of demand (toilet flushing, irrigation demand, and/or other demand) 8 What is the minimum use required for partial capture? (Table X.6) gpd 9 What is the project estimated wet season total daily use (Section X.2)? gpd 10 Is partial capture potentially feasible? (Line 9 > Line 8?) For projects with only toilet flushing demand 11 What is the minimum TUTIA for partial capture? (Table X.7) 12 What is the project estimated TUTIA? 13 Is partial capture potentially feasible? (Line 12 > Line 11?) For projects with only irrigation demand 14 What is the minimum irrigation area required based on conservation landscape design? (Table X.8)0.84 x 0.184 = 0.154 ac 15 What is the proposed project irrigated area? (multiply conservation landscaping by 1; multiply active turf by 2)0.021 ac 16 Is partial capture potentially feasible? (Line 15 > Line 14?) No Provide supporting assumptions and citations for controlling demand calculation: Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton Residence Section VI JN 22021 Page 22 IV.3.4 Biotreatment BMPs Biofiltration BMPs to be used for this project are indicated in the table below. Implementation of said controls is discussed in the text that follows. Name Included? Bioretention with underdrains Stormwater planter boxes with underdrains Rain gardens with underdrains Constructed wetlands Vegetated swales Vegetated filter strips Proprietary vegetated biotreatment systems Wet extended detention basin Dry extended detention basins Other: Other: The use of Biotreatment BMPs on the site would restrict the use of the development. Per XIV-74 of the TGD, Media filters may be used for drainage area with limited available surface area or where surface BMPs would restrict uses. A bioretention planter box sized per the TGD with a ponding depth of 6 inches would have a minimum surface area of 122 s.f. As shown on the bioretention feasibility diagram (Figure B-1) on the following page, the rear patio area has approximately 227 s.f. of space potentially available for the construction of a bioretention area. Construction of a bioretention planter box in this area would use more than 50% of the space intended to be used for social gatherings and harbor views. There are other smaller areas potentially available for construction of bioretention BMPs distributed throughout the site; however, use of these areas would require the construction of a complex pump/force main system to deliver flow to these areas for little water quality benefit. The proposed media filters (see section IV.3.7), together with non-structural source control BMPs, will mitigate expected pollutants. Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton Residence Section VI JN 22021 Page 23 IV.3.5 Hydromodification Control BMPs Hydromodification Control BMPs are not required. See Section II.3 of this WQMP. Hydromodification Control BMPs BMP Name BMP Description IV.3.6 Regional/Sub-Regional LID BMPs Regional/Sub-Regional LID BMPs There are no Regional/Sub-Reginal LID BMPs in which this project can participate. Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton Residence Section VI JN 22021 Page 24 IV.3.7 Treatment Control BMPs Treatment Control BMPs BMP Name BMP Description PRE-2 media filter Kristar Flogard Catch Basin Filter Insert (Model FGP-24F) The Filter removes Hydrocarbons, oil, grease, trash and sediment and debris. See Spec Sheet on Attachment D Use and Location Locations of proposed treatment control BMPs are shown on the BMP Exhibit in Section VI. Performance The provided Filter insert performance removes pollutants as follows: Trash and Debris removal Hydrocarbons (Oil, Grease, Pesticide) 70% to 80% Removal Sediment (TSS) 78% to 95% Removal Grease, Pesticide) 70% to 80% Removal Pathogen/microorganism removal (Coliforms, Enterococcus) Sizing See Worksheet D (Capture Efficiency Method for Flow‐Based BMPs) calculations on the following page. The design flow rate of 0.015 cfs is fully treated by the proposed Kristar FloGard Catch Basin Filter insert FGP‐24F which has a treatment capacity of 0.85 cfs (See Spec sheet in Attachment C). Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton Residence Section VI JN 22021 Page 25 Worksheet D: Capture Efficiency Method for Flow-Based BMPs Step 1: Determine the design capture storm depth used for calculating volume 1 Enter the time of concentration, Tc (min) (See Appendix IV.2) Tc= 5 2 Using Figure III.4, determine the design intensity at which the estimated time of concentration (Tc) achieves 80% capture efficiency, I1 I1= 0.26 in/hr 3 Enter the effect depth of provided HSCs upstream, dHSC (inches) (Worksheet A) dHSC= - inches 4 Enter capture efficiency corresponding to dHSC, Y2 (Worksheet A) Y2= - % 5 Using Figure III.4, determine the design intensity at which the time of concentration (Tc) achieves the upstream capture efficiency(Y2), I2 I2= - 6 Determine the design intensity that must be provided by BMP, Idesign= I1-I2 Idesign= 0.26 Step 2: Calculate the design flowrate 1 Enter Project area tributary to BMP (s), A (acres) A= 0.160 acres 2 Enter Project Imperviousness, imp (unitless) imp= 0.94 3 Calculate runoff coefficient, C= (0.75 x imp) + 0.15 C= 0.85 4 Calculate design flowrate, Qdesign= (C x idesign x A) Qdesign= 0.035 cfs Supporting Calculations The design flowrate for the lot that is using the filter insert is 0.035 The provided Kristar FloGard filter Insert (FGP-24F) provides 0.85 cfs of filtered flow……OK Provide time of concentration assumptions: Tc of 5-minutes is the minimum allowed and provides the most conservative design. Graphical Operations Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton Residence Section VI JN 22021 Page 26 Worksheet D: Capture Efficiency Method for Flow-Based BMPs Provide supporting graphical operations. See Example III.7. Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton Residence Section VI JN 22021 Page 27 IV.3.8 Non-structural Source Control BMPs The following Non-Structural Source Control BMPs shall be incorporated into the project. Non-Structural Source Control BMPs Identifier Name Check One If not applicable, state brief reason Included Not Applicable N1 Education for Property Owners, Tenants and Occupants N2 Activity Restrictions N3 Common Area Landscape Management N4 BMP Maintenance N5 Title 22 CCR Compliance (How development will comply) No hazardous waste. N6 Local Industrial Permit Compliance Not an industrial development. N7 Spill Contingency Plan No hazardous waste. N8 Underground Storage Tank Compliance No USTs. N9 Hazardous Materials Disclosure Compliance No hazardous materials. N10 Uniform Fire Code Implementation No hazardous materials. N11 Common Area Litter Control N12 Employee Training No employees. N13 Housekeeping of Loading Docks No loading docks. N14 Common Area Catch Basin Inspection N15 Street Sweeping Private Streets and Parking Lots Street sweeping performed by City of Newport Beach. N16 Retail Gasoline Outlets No gasoline dispensing. Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton Residence Section VI JN 22021 Page 28 N1 – Education: The owner shall keep a copy of this WQMP and the Operations and Maintenance Plan. N2 – Activity Restrictions: The following actions are prohibited on the project site: (1) disposal of solid waste on the property except in designated trash areas, (2) disposal of liquid waste into any solid waste container, (3) placement of hazardous waste in any solid waste container. Any activities that would violate the City of Newport Beach Water Quality Ordinance (Municipal Code Chapter 14.36). N3 – Common Area Landscape Management: The Owner may hire a landscape maintenance contractor to maintain site landscaping. N4 – BMP Maintenance: The Owner shall be responsible for maintenance of BMPs as indicated in Section V of this report. N11 – Common Area Litter Control: Litter and debris control may be performed by a landscape maintenance contractor hired by the property Owner. N14 – Common Area Catch Basin Inspection: Drainage facilities will be inspected and maintained as discussed in Section V of this WQMP. Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton Residence Section VI JN 22021 Page 29 IV.3.9 Structural Source Control BMPs The following Structural Source Control BMPs shall be incorporated into the project. Structural Source Control BMPs Identifier Name Check One If not applicable, state brief reason Included Not Applicable S1 Provide storm drain system stenciling and signage All drain inlets are on private property S2 Design and construct outdoor material storage areas to reduce pollution introduction No outdoor material storage areas S3 Design and construct trash and waste storage areas to reduce pollution introduction S4 Use efficient irrigation systems & landscape design, water conservation, smart controllers, and source control S5 Protect slopes and channels and provide energy dissipation No slopes present Incorporate requirements applicable to individual priority project categories (from SDRWQCB NPDES Permit) Santa Ana region project S6 Dock areas None present. S7 Maintenance bays None present. S8 Vehicle wash areas None present. S9 Outdoor processing areas None present. S10 Equipment wash areas None present. S11 Fueling areas None present. S12 Hillside landscaping Not a hillside area. S13 Wash water control for food preparation areas None present. S14 Community car wash racks None present. Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton Residence Section VI JN 22021 Page 30 S3 – Trash Enclosures: The Owner shall keep trash storage areas clean and orderly to reduce pollutant introduction. All trash container areas shall be paved with an impervious surface, designed not to allow run-on, screened or walled to prevent off-site transport of trash, and be provided with a roof or awning to prevent direct precipitation. S4 – Efficient Irrigation: The proposed project will utilize efficient irrigation systems as specified on the project landscape plans. Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton Residence Section VI JN 22021 Page 31 IV.4 Alternative Compliance Plan (If Applicable) Not Applicable. Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton Residence Section VI JN 22021 Page 32 Section V Inspection/Maintenance Responsibility for BMPs Fill out information in the table below. Prepare and attach an Operation and Maintenance Plan. Identify the mechanism through which BMPs will be maintained. Inspection and maintenance records must be kept for a minimum of five years for inspection by the regulatory agencies. Refer to Section 7.II-4.0 in the Model WQMP. See Attachment D – Operations and maintenance Plan. Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton Residence Section VI JN 22021 Page 33 Section VI Site Plan and Drainage Plan VI.1 BMP Exhibit (Site Plan) Include a site plan and drainage plan sheet set containing the following minimum information: Project location Site boundary Land uses and land covers, as applicable Suitability/feasibility constraints Structural BMP locations Drainage delineations and flow information Drainage connections BMP details VI.2 Submittal and Recordation of Water Quality Management Plan The minimum requirement is to provide submittal of PDF exhibits in addition to hard copies. Format must not require specialized software to open. If the local jurisdiction requires specialized electronic document formats (CAD, GIS) to be submitted, this section will be used to describe the contents (e.g., layering, nomenclature, georeferencing, etc.) of these documents so that they may be interpreted efficiently and accurately. F.F.=10.90 T/SLAB=10.78 PAD=__.__ POOL WF CATCH BASIN WITHFILTER INSERTSEE DETAIL HEREON. DRAINAGE AREA =5,509 S.F. (0.126 ac) DRAINAGEBOUNDARY DRAINAGEBOUNDARY OVERFLOW OUTLETTO EX. CURB FORCE MAIN SUMP PUMP 1 3 9 A v e n i d a N a v a r r o San Clemente, CA 92672 9 4 9 . 4 9 2 . 8 5 8 6 www.toalengineering.com CIVIL ENGINEERING L A N D S U R V E Y I N G STORMWATER QUALITY ADAM L. TOAL R.C.E. 59275 DATE: PROPOSED BUILDING WQMP LEGEND RUNOFF FLOW DIRECTION PROPOSED ROOF DOWNSPOUT AND FILTER INSERT PROPOSED DRAIN LINE CATCH BASIN WITH FILTER INSERT PROPOSED DRAIN INLETS PROPOSED CONCRETE PAVING DRAINAGE BOUNDARY PROPOSED PERVIOUS SURFACE PROPOSED FORCE MAIN DETAIL CATCH BASIN FILTER INSERT Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton Residence Section VI JN 22021 Page 34 Figure VI.1. Vicinity Map SITE Preliminary Water Quality Management Plan (pWQMP) 76 Linda Isle Horton Residence Section ViI JN 22021 Page 35 Section VII Educational Materials Refer to the Orange County Stormwater Program (ocwatersheds.com) for a library of materials available. Please only attach the educational materials specifically applicable to this project. Other materials specific to the project may be included as well and must be attached. Education Materials Residential Material (http://www.ocwatersheds.com) Check If Applicable Business Material (http://www.ocwatersheds.com) Check If Applicable The Ocean Begins at Your Front Door Tips for the Automotive Industry Tips for Car Wash Fund-raisers Tips for Using Concrete and Mortar Tips for the Home Mechanic Tips for the Food Service Industry Homeowners Guide for Sustainable Water Use Proper Maintenance Practices for Your Business Household Tips Other Material Check If Attached Proper Disposal of Household Hazardous Waste Recycle at Your Local Used Oil Collection Center (North County) Recycle at Your Local Used Oil Collection Center (Central County) Recycle at Your Local Used Oil Collection Center (South County) Tips for Maintaining a Septic Tank System Responsible Pest Control Sewer Spill Tips for the Home Improvement Projects Tips for Horse Care Tips for Landscaping and Gardening Tips for Pet Care Tips for Pool Maintenance Tips for Residential Pool, Landscape and Hardscape Drains Tips for Projects Using Paint ATTACHMENT A BMP FACT SHEETS TECHNICAL GUIDANCE DOCUMENT APPENDICES XIV-78 December 20, 2013 PRE-2: Catch Basin Insert Fact Sheet Catch basin inserts are manufactured filters or fabric placed in a drop inlet to remove sediment and debris and may include sorbent media (oil absorbent pouches) to remove floating oils and grease. Catch basin inserts are selected specifically based upon the orientation of the inlet and the expected sediment and debris loading. Opportunity Criteria x Catch basin inserts come in such a wide range of configurations that it is practically impossible to generalize the expected performance. Inserts should mainly be used for catching coarse sediments and floatable trash and are effective as pretreatment in combination with other types of structures that are recognized as water quality treatment BMPs. Trash and large objects can greatly reduce the effectiveness of catch basin inserts with respect to sediment and hydrocarbon capture. x Catch basin inserts are applicable for drainage area that include parking lots, vehicle maintenance areas, and roadways with catch basins that discharge directly to a receiving water. OC-Specific Design Criteria and Considerations □ Frequent maintenance and the use of screens and grates to keep trash out may decrease the likelihood of clogging and prevent obstruction and bypass of incoming flows. □ Consult proprietors for specific criteria concerning the design of catch basin inserts. □ Catch basin inserts can be installed with specific media for pollutants of concern. Proprietary Manufacturer / Supplier Websites x Table XIV.2 is a list of manufacturers that provide catch basin inserts. The inclusion of these manufacturers does not represent an endorse of their products. Other devices and manufacturers may be acceptable for pretreatment. Table XIV.2: Proprietary Catch Basin Insert Manufacturer Websites Device Manufacturer Website AbTech Industries Ultra- Urban Filter™ AbTech Industries www.abtechindustries.com Aquashield Aqua- Guardian™ Catch Basin Insert Aquashield™ Inc. www.aquashieldinc.com Bowhead StreamGuard™ Bowhead Environmental & Safety, Inc. http://www.shopbowhead.com/ Contech® Triton Catch Basin Filter™ Contech® Construction Products Inc. www.contech-cpi.com Contech® Triton Curb Inlet Filter™ Contech® Construction Products Inc. www.contech-cpi.com Also known as: ¾Drop Inlet Filters ¾Catch Basin Filters Catch Basin Insert (DrainPac™) TECHNICAL GUIDANCE DOCUMENT APPENDICES XIV-79 December 20, 2013 Table XIV.2: Proprietary Catch Basin Insert Manufacturer Websites Device Manufacturer Website Contech® Triton Basin StormFilter™ Contech® Construction Products Inc. www.contech-cpi.com Contech® Curb Inlet StormFilter™ Contech® Construction Products Inc. www.contech-cpi.com Curb Inlet Basket SunTree Technologies Inc. www.suntreetech.com Curb Inlet Grates EcoSense International™ http://www.ecosenseint.com/ DrainPacTM United Storm Water, Inc. http://www.unitedstormwater.com Grate Inlet Skimmer Box SunTree Technologies Inc. www.suntreetech.com KriStar FloGard+PLUS® KriStar Enterprises Inc. www.kristar.com KriStar FloGard® KriStar Enterprises Inc. www.kristar.com KriStar FloGard LoPro Matrix Filter® KriStar Enterprises Inc. www.kristar.com Nyloplast Storm-PURE Catch Basin Insert Nyloplast Engineered Surface Drainage Products www.nyloplast-us.com StormBasin® FabCo® Industries Inc. www.fabco-industries.com Stormdrain Solutions Interceptor FabCo® Industries Inc. www.fabco-industries.com Stormdrain Solutions Inceptor® Stormdrain Solutions www.stormdrains.com StormPod® FabCo® Industries Inc. www.fabco-industries.com Stormwater Filtration Systems EcoSense International™ http://www.ecosenseint.com/ Ultra-CurbGuard® UltraTech International Inc. www.spillcontainment.com Ultra-DrainGuard® UltraTech International Inc. www.spillcontainment.com Ultra-GrateGuard® UltraTech International Inc. www.spillcontainment.com Ultra-GutterGuard® UltraTech International Inc. www.spillcontainment.com Ultra-InletGuard® UltraTech International Inc. www.spillcontainment.com ATTACHMENT B EDUCATION MATERIALS ATTACHMENT C OPERATION & MAINTENANCE PLAN ATTACHMENT D Operations and Maintenance (O&M) Plan for NORTON RESIDENCE 76 LINDA ISLE Newport Beach, California 92660 APN 050-451-35 Overall Responsible Party/Owner: 76 LINDA ISLE Newport Beach, California 92660 APN 050-451-35 408-615-3412 Exhibit B, Operations and Maintenance Plan BMP Applicable? Yes/No BMP Name and BMP Implementation, Maintenance and Inspection Procedures Implementation, Maintenance, and Inspection Frequency and Schedule Person or Entity with Operation & Maintenance Responsibility Non-Structural Source Control BMPs Yes N1. Education for Property Owners, Tenants and Occupants Practical information materials will be provided to the first residents/occupants/tenants on general housekeeping practices that contribute to the protection of stormwater quality. These materials will be initially developed and provided to first residents/occupants/tenants by the developer. Owner shall keep up to date with BMP requirements, and be responsible for educating maintenance personnel; As required. Owner Yes N2. Activity Restrictions The following actions are prohibited on the project site: (1) car washing on any portion of the property, (2) disposal of solid waste on the property except in designated trash areas, (3) disposal of liquid waste into any solid waste container, (4)placement of hazardous waste in any solid waste container.Any activities that would violate the City of Newport BeachWater Quality Ordinance (Municipal Code Chapter 14.36). Owner Yes N3. Common Area Landscape Management Identify on-going landscape maintenance requirements that are consistent with those in the County Water Conservation Resolution (or city equivalent) that include fertilizer and/or pesticide usage consistent with Management Guidelines for Use of Fertilizers (DAMP Section 5.5). Statements regarding the specific applicable guidelines must be included in the project WQMP. Keep garden areas clean, planted, and weed free. Weekly. Owner or contracted maintenance personnel Yes N4. BMP Maintenance The project WQMP shall identify responsibility for implementation of each non-structural BMP and scheduled cleaning and/or maintenance of all structural BMP facilities. Visual Inspection, perform more thorough inspection if ponding water sits for more than 48 hours. Twice yearly and immediately following each storm event. Owner or contracted maintenance personnel No N5. Title 22 CCR Compliance Exhibit B, Operations and Maintenance Plan Page 2 of 7 BMP Applicable? Yes/No BMP Name and BMP Implementation, Maintenance and Inspection Procedures Implementation, Maintenance, and Inspection Frequency and Schedule Person or Entity with Operation & Maintenance Responsibility No N6. Local Water Quality Permit Compliance No N7. Spill Contingency Plan No N8. Underground Storage Tank Compliance No N9. Hazardous Materials Disclosure Compliance No N10. Uniform Fire Code Implementation Yes N11. Common Area Litter Control The owner may contract with their landscape maintenance firms to provide this service during regularly scheduled maintenance, which should consist of litter patrol, emptying of trash receptacles in common areas, and noting trash disposal violations by tenants/homeowners or businesses and reporting the violations to the owner/POA for investigation. Keep site clean of litter. Weekly. Owner or contracted maintenance personnel Yes N12. Employee Training Owner or contracted maintenance personnel No N13. Housekeeping of Loading Docks Yes N14. Common Area Catch Basin Inspection The owner is required to have at least 80 percent of drainage facilities inspected, cleaned and maintained on an annual basis with 100 percent of the facilities included in a two year period. Cleaning should take place in the late summer/early fall prior to the start of the rainy season. Drainage facilities include catch basins (storm drain inlets), detention basins, retention basins, sediment basins, open drainage channels and lift stations. Records should be kept to document the annual maintenance. Inspect drain inlets and catch basins. Keep inlet covers clean. Weekly. Owner or contracted maintenance personnel No N15. Street Sweeping Private Streets and Parking Lots Structural Source Control BMPs Exhibit B, Operations and Maintenance Plan Page 3 of 7 BMP Applicable? Yes/No BMP Name and BMP Implementation, Maintenance and Inspection Procedures Implementation, Maintenance, and Inspection Frequency and Schedule Person or Entity with Operation & Maintenance Responsibility Yes S1. Provide Storm Drain System Stenciling and Signage Provide stenciling or labeling of all storm drain inlets and catch basins, constructed or modified, within the project area with prohibitive language and/or graphical icons, which discourage illegal dumping. Ensure that all catch basins are stencilled “No Dumping – Drains To Ocean.” Owner or contracted maintenance personnel No S2. Design Outdoor Hazardous Material Storage Areas to Reduce Pollutant Introduction Yes S3. Design Trash Enclosures to Reduce Pollutant Introduction Design trash storage areas to reduce pollutant introduction. All trash container areas shall be paved with an impervious surface, designed not to allow run-on, screened or walled to prevent off-site transport of trash, and be provided with a roof or awning to prevent direct precipitation. Keep trash storage areas clean and orderly. Weekly. Owner or contracted maintenance personnel Yes S4. Use Efficient Irrigation Systems and Landscape Design Projects shall design the timing and application methods of irrigation water to minimize the runoff of excessive irrigation water into the municipal storm drain system. Additionally, permittee shall: Employ rain shutoff devices, design irrigation systems to each landscape areas specific requirements, use flow reducers, group plants with similar water requirements together. Ensure that sprinklers are working properly and minimize unnecessary irrigation. Weekly. Owner or contracted maintenance personnel No S5. Protect Slopes and Channels No S6. Loading Dock Areas No S7. Maintenance Bays and Docks No S8. Vehicle Wash Areas No S9. Outdoor Processing Areas No S10. Equipment Wash Areas Exhibit B, Operations and Maintenance Plan Page 4 of 7 BMP Applicable? Yes/No BMP Name and BMP Implementation, Maintenance and Inspection Procedures Implementation, Maintenance, and Inspection Frequency and Schedule Person or Entity with Operation & Maintenance Responsibility No S11. Fueling Areas No S12. Site Design and Landscape Planning No S13. Wash Water Controls for Food Preparation Areas No S14. Community Car Wash Racks Exhibit B, Operations and Maintenance Plan Page 5 of 7 BMP Name and BMP Implementation, Maintenance and Inspection Procedures Implementation, Maintenance, and Inspection Frequency and Schedule Person or Entity with Operation & Maintenance Responsibility Low Impact Development BMPs Filter Insert. (TRT-2) •Filter insert Replacement/Rotation •Remove Sediment and Debris •Once a year. Refer to Manufacturer’sO&M plan on pages 36-38 for details. •Three times per year and after stormevents. Refer to Manufacturer’s O&M planon pages 36-38 for details. Owner via maintenance contractors Exhibit B, Operations and Maintenance Plan Attachments Required Permits This section must list any permits required for the implementation, operation, and maintenance of the BMPs. Possible examples are: •Permits for connection to sanitary sewer •Permits from California Department of Fish and Game •Encroachment permits If no permits are required, a statement to that effect should be made. Forms to Record BMP Implementation, Maintenance, and Inspection The form that will be used to record implementation, maintenance, and inspection of BMPs is attached. Recordkeeping All records must be maintained for at least five (5) years and must be made available for review upon request. RECORD OF BMP IMPLEMENTATION, MAINTENANCE, AND INSPECTION Today’s Date: Name of Person Performing Activity (Printed): Signature: BMP Name (As Shown in O&M Plan) Brief Description of Implementation, Maintenance, and Inspection Activity Performed ATTACHMENT D FILTER INSERT SPEC SHEETS Submittal Package FLOGARD® CATCH BASIN INSERT FILTER 1 - Features & BeneFits 2 - accessories 3 - Product sPeciFications table of contentS Features & BeneFits Section 1 Call us today (800) 579-8819 or visit our website for detailed product information, drawings and design tools at www.oldcastlestormwater.com FLOGARD® CATCH BASIN INSERT FILTER IN L E T F I L T R A T I O N Removes Pollutants from Runoff Prior to Entering Waterways Efficient System Catches pollutants where they are easiest to catch, at the inlet. Focused Treatment Removes petroleum hydro- carbons, trash and Total Suspended Solids (TSS). Variable Design Able to be retrofitted or used in new projects. Two-part stainless-steel insert to filter solids and oils/grease Easy to install, inspect and maintain, even on small and confined sites Treatment Train Can be incorporated as part of a “Treatment Train”. No Standing Water Helps to minimize bacteria and odor problems. Economical Earn a higher return on system investment. Maximum Flexibility Available in a variety of standard sizes to fit round and square inlets. Catch Basin Filter Test Results Summary UCLA U of Auckland Tonking & Taylor, Ltd. (for City of Auckland) U of Hawaii (for City of Honolulu) 80 78 to 95 80 70 to 80 Testing Agency % TSS Removal % Oil & Grease Removal 20 to 40 % PAH Removal By the Numbers*: Filter will remove up to 80% of Total Suspended Solids (TSS), at least 70% of oils and grease and 40% of Total Phosphorus (TP) associated with organic debris as well as Polycyclic Aromatic Hydrocarbons (PAH ) from oil leaks and spills. *Approx. for urban street application (800) 579-8819 oldcastlestormwater.com © 2017 Oldcastle Precast, Inc. OSS_FloGard CBIF Insert_032017_v4 Multi-Purpose Catch Basin Insert Retains Sediment, Debris, Trash and Oils/Grease FloGard® Catch Basin Insert Filters are recommended for areas subject to silt and debris as well as low-to-moderate levels of petroleum hydrocarbons (oils and grease). Examples of such areas include vehicle parking lots, aircraft ramps, truck and bus storage yards, business parks, residential and public streets. Catch Basin Filter Competitive Feature Comparison Evaluation of Catch Basin Filters Oldcastle Stormwater Other Insert Filter Types** (Based on flow-comparable units) (Scale 1-10) Flow Rate 10 7 Removal Efficiency* 80% 45% Capacity - Sludge & Oil 7 7 Service Life 10 3 Installation - Ease of Handling / Installation 8 6 Ease of Inspections & Maintenance 7 7 Value 10 2 *approximate, based on field sediment removal testing in urban street application **average Long-Term Value Comparison Oldcastle Stormwater Other Insert Filter Types (Based on flow-comparable units) (Scale 1-10) Unit Value - Initial ($/cfs treated) 10 4 Installation Value ($/cfs treated) 10 7 Absorbent Replacement (annual avg ($/cfs treated) 10 2 Materials Replacement Value (annual avg ($/cfs treated) 10 10 Maintenance Value (annual avg ($/cfs treated) 10 7 Total First Year ROI ($/cfs treated) 10 5 Total Annual Avg Value ($/cfs treated, avg over 20 yrs)* 10 5 Flat-Grated Inlet Circular Frame Catch BasinCaptured debris from FloGard Catch Basin Insert Filter in Dana Point, California Combination Inlet accessories Section 2 U.S. PATENT #6,551,023 & 6,872,029 Product sPeciFications Section 3 STANDARD DEPTH INLET ID Inside Dimension (inch x inch) GRADE OD Outside Dimension (inch x inch) TOTAL BYPASS CAPACITY (cu. ft. / sec.) SOLIDS STORAGE CAPACITY (cu. ft.) FILTERED FLOW (cu. ft. / sec.) SHALLOW DEPTH SOLIDS STORAGE CAPACITY (cu. ft.) FILTERED FLOW (cu. ft. / sec.) FGP-1633FGO 16 X 33 18 X 36 7.0 2.5 1.7 FGP-1633FGO8 1.4 1.1 FGP-1836FGO 18 X 36 18 X 40 6.9 2.3 1.6 FGP-1836FGO8 1.3 .9 FGP-2234FGO 22 X 34 24 X 36 8.1 3.6 2.1 FGP-2234FGO8 2.1 1.4 FGP-2436FGO 24 X 36 24 X 40 8.0 3.4 2.0 FGP-2436FGO8 1.95 1.15 STANDARD DEPTH INLET ID Inside Dimension (inch x inch) GRADE OD Outside Dimension (inch x inch) TOTAL BYPASS CAPACITY (cu. ft. / sec.) SOLIDS STORAGE CAPACITY (cu. ft.) FILTERED FLOW (cu. ft. / sec.) SHALLOW DEPTH SOLIDS STORAGE CAPACITY (cu. ft.) FILTERED FLOW (cu. ft. / sec.) FGP-12F 12 X 12 12 X 14 2.8 0.3 0.4 FGP-12F8 .15 .25 FGP-16F 16 X 16 16 X 19 4.7 0.8 0.7 FGP-16F8 .45 .4 FGP-18F 18 X 18 18 X 20 4.7 0.8 0.7 FGP-18F8 .45 .4 FGP-1836F 18 X 36 18 X 40 6.9 2.3 1.6 FGP-1836F8 1.3 .9 FGP-21F 22 X 22 22 X 24 6.1 2.2 1.5 FGP-21F8 1.25 .85 FGP-24F 24 X 24 24 X 27 6.1 2.2 1.5 FGP-24F8 1.25 .85 FGP-2436F 24 X 36 24 X 40 8.0 3.4 2.0 FGP-2436F8 1.95 1.15 FGP-2448F 24 X 48 24 X 48 9.3 4.4 2.4 FGP-2448F8 2.5 1.35 FGP-32F-TN 28 X 28 32 X 32 6.3 2.2 1.5 FGP-32F8-TN 1.25 .85 FGP-30F 30 X 30 30 X 34 8.1 3.6 2.0 FGP-30F8 2.05 1.15 FGP-36F 36 X 36 36 X 40 9.1 4.6 2.4 FGP-36F8 2.65 1.35 FGP-3648F 36 X 48 40 X 48 11.5 6.8 3.2 FGP-3648F8 3.9 1.85 FGP-48F 48 X 48 48 X 54 13.2 9.5 3.9 FGP-48F8 5.45 2.25 FGP-1633F 16 X 34 18 X 36 6.9 2.3 1.6 FGP-1633F8 1.3 .9 FGP-2234F 22 X 34 24 X 36 8.0 3.4 2.0 FGP-2234F8 1.95 1.15 STANDARD DEPTH -20 Inches- SHALLOW DEPTH -12 Inches- FloGard Combination Inlet SPECIFIER CHART STANDARD & SHALLOW DEPTH (Data in these columns is the same for both STANDARD & SHALLOW versions)MODEL NO.MODEL NO. FloGard Flat Grated Inlet SPECIFIER CHART STANDARD & SHALLOW DEPTH (Data in these columns is the same for both STANDARD & SHALLOW versions) STANDARD DEPTH -20 Inches- SHALLOW DEPTH -12 Inches- MODEL NO.MODEL NO. U.S. PATENT #6,551,023 & 6,872,029 * MANY OTHER STANDARD & CUSTOM SIZES AND DEPTHS AVAILABLE UPON REQUEST. INLET, FRAME & GRATE INFORMATION CONTACT INFORMATION CO N T A C T DE T A I L S Company: Job Name: Job Address: Contact Name: Email: TY P E Inlet Type (e.g. PA Type M): Frame Model #: Grate MFG/Model (e.g. Neenah R-2060): Grate Type (Check One): Cast Iron Steel PLEASE PROVIDE MEASUREMENTS WITHIN 1/8" TO GUARANTEE ACCURATE INSTALLATION* THE FOLLOWING MEASUREMENTS ARE REQUIRED TO PLACE AN ORDER Notes: If any obstructions or protrusions exist within the catch basin, please provide photos and accurate measurements to ensure proper installation. Submittal of this form represents that the customer acknowledges that all details provided are accurate, and that any issues resulting from inaccurate information herein are the responsibility of said customer. * Use second page for additional catch basins. CONTACT INFORMATION Grate Grate outside dimensionsA Grate outside dimensionsB Catch Basin Frame clear opening or wall to wall inside the catch basin, whichever is less C Frame clear opening or wall to wall inside the catch basin, whichever is less D Grate section Square belly Round belly Flat Section through Catch Basin Bottom of frame to top of outlet pipe E Bottom of frame to floor of catch basin F Grate type (pick one): Belly width Belly width Belly depth Belly depth G H I J City/State/Zip: Phone: Pipe inside diameterDo you have inlet pipes?If yes, bottom of grate to top of pipeYN Need to be filtered?Y N Inlet Pipes? Please email completed forms to contactstormwater@oldcastle.com www.oldcastlestormwater.com Phone: (800) 579-8819 Measurement Chart for FloGard Inserts(Square/Rectangular Flat Grated Inlets) PLEASE PROVIDE MEASUREMENTS WITHIN 1/8" TO GUARANTEE ACCURATE INSTALLATION A - Grate outside dimensions B - Grate outside dimensions C - Frame clear opening or wall to wall inside the catch basin, whichever is less D - Frame clear opening or wall to wall inside the catch basin, whichever is less E - Measure from bottom of frame to top of outlet pipe F - Bottom of frame to floor of catch basin * If grate has "belly" please include measurements for G & H or I & J, depending on belly style. Notes: If any obstructions or protrusions exist within the catch basin, please provide photos and accurate measurements to ensure proper installation. Submittal of this form represents that the customer acknowledges that all details provided are accurate, and that any issues resulting from inaccurate information herein are the responsibility of said customer. THE FOLLOWING MEASUREMENTS ARE REQUIRED TO PLACE AN ORDER Bottom of frame to top of pipeGrate outside dimensions Frame clear opening or wall towall inside the catch basin A B C D E F Bottom of frame to floor of catch basinQuantity/ Drain # Square bellywidth G H I J Square bellydepth Round bellywidth Round bellydepth Square belly grate Round belly grate Please email completed forms to contactstormwater@oldcastle.com www.oldcastlestormwater.com Phone: (800) 579-8819 Measurement Chart for FloGard Inserts(Square/Rectangular Flat Grated Inlets) NOTES: www.oldcastlestormwater.com 800-579-8819 BUILDING STRUCTURES OUR MARKETS TRANSPORTATION WATER ENERGYCOMMUNICATIONS FLOGARD® CATCH BASIN INSERT FILTER