The URL can be used to link to this page

Home My WebLink AboutCT 02-19; BRESSI RANCH PA 11; STORM WATER MANAGEMENT PLAN; 2004-01-08I I I I, I I I I I I I .,1 I .~ I I I, ' I I I RECEIVED JAN 1 2 2004 ENG\NEeR\NG DEPARTMENT STORM WATER MANAGEMENT PLAN City of Carlsbad Prepared By Partners Planning 'and Engineering 15938 Bernardo Center Drive San Diego, CA 92127 For Vigilucci's Seafood and Steakhouse 3878 Carlsbad Blvd. Carlsbad, CA 92008 January 8, 2004 · ! ,': I I I I I I I I I ,I I I I I I I TABLE OF CONTENTS INTRODUCTION 1. Project Description ........................................................................................... . 1.1. Hydrologic Unit Contribution .................................................................. . 1.2. Beneficial Use ............................................................................................. . 1.2.1. 1.2.2. Coastal Waters .............................................................................. . Groundwater ................................................................................. . 2. CHARACTERIZATION OF PROJECT RUNOFF ..................................... . 2.1. Expected Discharges .................................................................................. . 2.2. -Soil Characteristics .................................................................................... . 3. MITIGATION MEASURES TO PROTECT WATER QUALITY 3.1. Construction BMPs ................................................................................... . 3.2. Post-construction BMPs ............................................................................ . 3.2.1. Site Design BMPs ............................................................................ . 3.2.2. Source Control BMPs ..................................................................... . 3.2.3. Treatment Control .......................................................................... . 3.2.3.1 Fossil Filter TM Storm Water Filtration System ......•...•.•.... 3.2.4. Target Pollutants and Proposed BMPs ......................................... . . 4. OPERATION AND MAINTENANCE PROGRAM ..................................... . 4.1. Source Control BMPs ................................................................................. . 4.1.1 4.1.2 4.1.3 4.1.4 4.1.5 Hazardous Material Storage .......................................................... . Trash Storage .................................................................................. . Integrated Pest Management ......................................................... . Inlet / Catch Basin Tiles ................................ ~ ................................ . Good Housekeeping ...................................................... ~ ................. . 4.2. Treatment Control BMPs ......................................................................... . 4.2.1 Fossil Filter TM Storm Water Filtration System .............................. . 5. FISCAL RESOURCES ..................................................................................... . 6. CONCLUSIONS ................................................................................................. . I I I I I' I I I ,I , I I I I' I I :1 I I ATTACHMENTS A. Vicinity Map B. Project Map C. Drainage Study D. Appendix , ! " I I I I I I I' I I I I ,I I I ',I I I I INTRODUCTION The Stonn Water Management Plan (SWMP) requirement is required under the City ot Carlsbad's Stonn Water-Management and Discharge Control Ordinance and Standard Urban Stonn Water Mitigation Plan. The purpose of this SWMP is to address the water quality impacts from the proposed improvements for Vigilucci' s Seafood and Steakhouse and to propose best management practices (BMPs) to remove pollutants from the stonn water runoff. The proposed BMPs will be utilized to provide a long-tenn solution to water quality. This SWMP is also intended to ensure the effectiveness ofthe BMPs through proper maintenance that is based on long-tenn fiscal planning. The SWMP is subject to revisions as needed by the engineer. 1. PROJECT UESCRIPTION The drainage improvements proposed for Vigilucci' s Seafood and Steakhouse includes the addition of three (3) 12" x 12" grated catch basins fitted with the Fossil Filter™ Stonn Water Filtration System to replace two (2) existing grated catch basins. The project site is located on the comer of Tamarack Avenue and Carlsbad Blvd (PCH). Access to the site occurs, via Tamarack Avenue. See Attachment 'A' for vicinity map. 1.1 Hydrologic Unit Contribution Vigilucci's Seafood and Steakhouse is located in the Agua Hedionda Hydrologic Subarea (HSA 904.31) of the Carlsbad Hydrologic Unit. The project site is currently Vigilucci's , Seafood ,and Steakhouse with an existing structure, hardscape, landscaping and associated parking lot on a 0.32-acre parcel. Approximately 40% of the existing site drains to one of the two existing grated catch basins on site. The stor,m water intercepted by the catch b~ins is then conyeyed via an existing 3-inch PVC culvert to Carlsbad Blvd. Due to'the limiting nature of the 3-inch culvert, stonn water ponds in the temporarily on-site in the vicinity ~f the catch basins until all of the stonn water is conveyed off-site. The remainder of the site, including a portion of the parking lot and roof drainage, sheet flows to Carlsbad Blvd. There , is an existing Type 'B' curb inlet located approximately 20' downstream of the curb outlet that intercepts the stonn water from the westerly half of Carlsbad Blvd. The proposed proJect will not significantly alter drainage patterns on-site. The only difference will be that , all of the stonn water runoff generated within the parking lot will be intercepted by,one of three proposed grated catch basins fitted with Fossil Filter inserts to cleanse the stonn water runoff prior to exiting the site. The addition of the third catch basin will create some additional ponding on-site, but site constraints made this situation unavoidable. The third catch basin was added to ensure that all of the runoff from the parking lot would be cleansed prior to exiting the site. The remainder of the runoff patterns will remain unchanged. Both the existing and proposed sites generate 1.3 cfs during the 100-year stonn. Overall,the project area represents approximately 0.003 percent of the watershed. I I I I I I I I 'I I I ,I I ,~ I 'I I I I I 1.2 Beneficial Uses The beneficial uses for the hydrologic unit are included in Tables 1.1 and 1.2. These tables have been extracted from the Water Quality Control Plan for the San Diego Basin. MUN -Municipal and Domestic Supply: Includes uses of water for COlmnunity, military, or individual water supply systems including, but not limited to, drinking water supply. AGR -Agricultural Supply: Includes uses of water for farming, horticulture, or ranching including, but not limited to, irrigation, stock watering, or support of vegetation for range grazmg. IND -Industrial Service Supply: Includes uses of water for mdustrial activities ili:at do :hot depend primarily on water quality including, but not limited to mining, cooling water supply, hydraulic conveyance, gravel washing, fire protection, or oil well re-pressurization. RECl -c.ontact Recreation: Includes uses of water for recreational activities involving body contact 'with water, where ingestion of water is reasonably possiple. 'These uses include, but are not limited to, swimming, wading, water-skiing, skin and SCUBA diving, surfing, white water activities, fishing, or use of natural hot springs. ' REC2 -Non-Contact Recreation: Includes the uses of wat~r 'for recreation involving proximity to water, but not normally involving body contact with water, where ingestion of water is reasonably possible. These uses include, but are not limited to, picnicking, sunbathing, hiking, camping, boating, tide pool and marine life study, hunting, sightseeing, or aesthetic enjoyment in conjunction with the above activities. COMM -Commercial and Sport Fishing: Commercial or recreational collection of fish, shellfish, or other organisms including, but not limited to, uses involving organis~s intended for human consumption or bait purposes. AQUA -Aquaculture: Aquaculture or mariculture operations including, but not liIDited to, propagation, cultivation, maintenance, or harvesting of aquatic plants and animals for human consumption or bait purposes. EST -Estuarine Habitat: Estuarine ecosystems including, but not limited to, preservation or enhancement of estuarine habitats, vegetation, fish, shellfish, or wildlife (e.g., estuarine mammals, waterfowl, shorebirds). MAR -Marine Habitat: Marine ecosystems including, but not limited to, preservation or enhancement of marine habitats, vegetation such as kelp, fish, shellfish, or wildlife (e.g., marine mammals, shorebirds). ' , RARE -Rare, THreatened, or Endangered Species:' Habitats necessary, at least in part, for the survival and successful maintenance of plant and animal species established under state or federal law as rare, threatened, or endangered. ' MIGR -Migration of Aquatic Organisms: Habitats necessary for migration" ' acclimatization between fresh and salt water, or other temporary activities by aquatic organisms, such as anadromous fish. SPWN -Spawning, Reproduction, and/or Early Development: High quality habitats suitable for reproduction and early development of fish. This use is applicable only for the protection of anadromous fish. ' SHELL -Shellfish Harvesting: Habitats suitable for the collection of filter-feeding shellfish (e.g. clams, oysters, and mussels) forhuman consumption, commercial, or sport purposes. I I I I I I I ·1 I I '1 I .1 I I I I I I WILD -Wildlife Habitat: Includes uses of water that support terrestrial ecosystems including, but not limited to,.preservation and enhancement of terrestrial habitats; vegetation, wildlife, (e.g., mammals, birds, reptiles, amphibians, invertebrates), or wildlife water and food sources. 1.2.1 Coastal Waters Coastal waters have the following beneficial uses as shown on table' 1. 1 Table 1.1 Beneficial Uses for Coastal Waters I R R Hydrolo N E E gic Unit D C C Number 1 2 904.31 X X X * Excepted from Municipal X Existing Beneficial Use o Potential Beneficial Use 1.2.2 Groundwater C A E 0 Q s M U T M A X X X M R M S A A I P R R G W E R 'N X X X X S W H I E L L D L X X Ex,isting beneficial uses of groundwater in the Carlsbad Hydrologic Area (904.31) include municipal and domestic supply, agricultural supply and industrial service supply. None of these beneficial uses will be impaired or diminished due to the construction and operation of this project. Table 1.2 Beneficial Uses for Groundwater M .A I Hydrologic U G N Unit Number N R D 904.31 X X X , :I< Excepted from Municipal X Existing Beneficial Use o Potential Beneficial Use I . I I I I I I I I I I I I I I I 2. CHARACTERIZATION OF PROJECT RUNOFF Approximately 4.0% of the existing site drains to one of the two existing grated catch basins on site. The storm water intercepted by the catch basins is then conveyed via an existing 3- inch PVC culvert to Carlsbad Blvd. Due to the limiting nature of the 3-inch culvert, storm water ponds in the temporarily on-site in the vicinity of the catch basins until all of the storm water is conveyed off-site. The remainder of the site, including a portion of the parking lot and roof drainage, sheet flows to Carlsbad Blvd. There is an existing Type 'B' curb iniet located approximately 2.0' downstream of the curb outlet that intercepts the storm waterfrorp. the westerly half of Carlsbad Blvd. The proposed project will not significantly alter " drainage patterns on-site. The proposed improvements include replacing the two existing grated catch basins with three grated catch basins fitted with Fossil Filter Inserts for water quality purposes. Table 2.1 identifies the hydrologic/hydraulic characteristics for each basin. See Attacmnent 'B' for project BMP map (Drainage Improvements). See Attachment 'C' for calculations. Table 2:1 BASIN Total Tc Q100 QWQ* Area A .0 . .07 AC 5 . .0 Min .0.29 cfs .0 . .01 cfs B Q.Q6AC 5 . .0 Min .0.25 cfs 0 . .01 cfs C , .0.11 AC 5 . .0 Min .0.46 cfs .0 . .02 cfs D .0 • .03 AC 5 . .0 Min .0.13 cfs .0 . .01 cfs * Based on 85 % percentile storm with 1=.0.2 inIhr According to the California 2.0.02 3Q3d list published by the San Diego Regional Water Quality Control Board, the only currently listed impaired water bodies associated with th~ Carlsbad Hydrologic Unit 'is Agua"Hedionda Lagoon which is listed for Bacteria Indicators and Sedimentation / Siltation. This project drains to the Pacific Ocean which is currently not listed as an impaired water body within the limits of HSA 9.04.31. "' 2.1 Expected Discharges . There was no sampling data available for the existing site condition. The following c,onstituents are commonly found on similar developments and could affect water quality: • Sediment discharge due to construction activities. • Organic compounds from parked cars. • Trash and debris. • Nutrients from fertilizers. • Pesticides from landscaping. • Oil and grease from parked cars. • Heavy metals from parked cars. I I I I I I I I I I .1 I I I I' I I 2.2 Soil Characteristics The project area consists of soil group A with a minimum saturated infiltration rate of 6.3 inlhr. See Figure 2.1 for site location and soil type. I . I I I I I I I I 'I I I ,I I ~I I I I I I 3.0 MITIGATION MEASURES TO PROTECT WATER QUALITY To address water quality for the project, BMPs will be implemented during construction and post-construction. 3.1 Construction BMPs With the localization of the construction area to a minimized area around the proposed or replaced inlets, the chosen construction BMPs for the Drainage Improvement Plan will be good housekeeping. In addition to the BMP's listed on the Drainage Improvement Plans, the following BMP's may also be used as required to the satisfaction ofthe City Engineer. • Silt Fence • Fiber Rolls • Street Sweeping and Vacuuming • Storm Drain Inlet Protection • Stockpile Management • Solid Waste Management • Stabilized Construction EntrancelExit • Dewatering Operations • .v ehic1e and Equipment Maintenance • Desilting Basin • Gravel Bag Berm • ' Sandbag Barrier • Material Delivery and Storage • Spill Prevention,~d Control • Concrete Waste Management • Water Conservation Practices • Penrianent Revegetation of all disturbed uncov~red areas • Erosion Control Mats and Spray-on Applications Construction BMPs for this project will be selected, constructed, and maintained so as to comply with all applicable ordinances and guidance documents. 3.2 Post-construction B~Ps 3.2.1 Site Design BMPs The existing site consists of an existing structure, hardspape, landscaping and a,parking area I, ' on a 0.32-acre lot. All disturbed areas will be either paved or landscaped. There will be no areas left bare. Approximately 70% of the surface runoffwill be directed into 12" x 1~" grated catch basins fitted with Fossil Filter Ins~rts for water quality purposes: Landscaping at the site already exists and will not be, disturbed during any of the construction activities. the landscaping consists of both native and non-native plants. The irrigation system,for these landscaped areas will be monitored to reduce over'irrigation. I I I I I I I 'I I I ,I I I I I I I 3.2.2 Source Control BMPs All hazardous materials with'the potential to contaminate urban runoff shall be placed in an , enclosure such as, but not limited to, a cabinet, shed or similar structure that prevents contact with rain, runoff or spillage to the storm water conveyance system. In addition, the hazardous materials enclosure shall be protected by secondary containment structure such as berms, dikes. or curbs and have a roof or awning to minimize direct precipitation within the secondary containment area. " Trash storage areas shall be paved with an impervious surface, designed not to allow run-0n from adjoining areas and screened or walled to prevent off-site transport of trash; 'and contain attached lids on all trash containers that exclude rain. ' Vigilucci's Seafood and Steakhouse shall employ Integrated Pest Management (IPM) principles to eliminate andlor reduce the need for pesticide use in the project design by incorporating pest-resistant plants andlor native plants. Vigilucci's Seafood and Steakhouse shall distribute IPM educational material to all future site tenants. The IPM materials shall address the following topics: (1) Keeping pests, out of buildings and landscaping usip.g banners, screens and caulking; (2) Physical pest elimination techniques, such as weeding, trapping, washing, or pruning out pests; (3) Relying on natural enemies to eat pests; and (4) Proper use of pesticides as a last line of defense. All storm water boxes (catch basins, inlets, etc) shall be stamped or stenciled with prohibitive, language (e.g., ''No Dumping - I Live in the Pacific Ocean") satisfactory to the City . Engineer. Ifrequired, the stamping shall be in Spanish as well. The stamping or stenciling shall be maintained to remain legible. An additio~al Source Control BMP to be used on~site is good housekeeping. Good housekeeping practices that shall be utilized on site include keeping outdoor areas in a neat and ordetly condition, picking up garbage left within the pavement and landscape areas. The site shall be visually inspected on a weekly basis to remove all "foreign" items including, but not limited to, landscape debris and common trash. Routine maintenance procedures for good housekeeping include removing all freshly trimmed landscape items and natural deposited items such as annual leaves and dispose off- , ~,te per governing codes. In addition, during fertilizing, herbicide or pesticide applicati0fl, over spray to non-landscape areas shall not be permitted .. Application shall be limited to landscape area only. All fertilizer, herbicide or pesticide shall be applied in the amount and application as provided by the manufacturer. All empty containers shall be disPQ&ed of off- site per local codes. Finally, the paved areas shall be swept as necessary using dry methods (manual sweeping, street sweepers, etc) to remove dust and sediment buildUp. Sweeping schedule to be determined by Vigilucci's Seafood and Steakhouse or as directed by . governing officials. I I I I' I I. I I I I I I I' ~I I I I I I 3.2.3 Treatment Control BMPs In order to comply with stringent stonn water standards, the drainage improvements for Vigilucci's Seafood and Steakhouse will utilize structural BMPs to minimize the potential detrimental effects on water quality. The proposed 12"x12" grated catch basins will be fitted with a Fossil Filter™ Inserts. Per Manufacturer's specs, Fossil Filter™ Inserts can Cleanse runoff from a stonn generating 1.0 cfs without impeding flow (See Figure 3.1). All treatment control BMPs will be sized to cleanse the runoff generated by a stonn event with a rainfall intensity of 0.2 inch/hour. . 3.2.3.1 Fossil Filter™ Storm Water Filtration System The Fossil Filter TM Stonn Water Filtration System places a catch basin insert device that . contains a 'filtering medium (adsorbent) just under the grates of the stonnwater system's catch basins. The water runoff flows into the inlet, through the filter where the target contaminants are removed, and then into the drainage system. An example of Fossil Filter™ Stonn Water Filtration System is shown in Figure 3.1. The system effectively filters the first flush of stonnwater runoff from a stonn event and provides an overflow capability sufficient to. prevent the system from becoming clogged. The adsorbent medium is a nonleaching inert blend of minerals that contain non-hazardous ingredients, as defined by Federal EPA, .oSHA and WHO. 3.2.4 Target Pollutants and Proposed BMPs • . Nutrients from fertilizers will be treated primarily by practicing and maintaimng good housekeeping procedures .and by the Fossil Filter TM Stonn Water Filtration System as a secondary BMP. . • Trash and debris will be treated by practicing and maintaining good housekeeping procedures. . • Pesticides from landscaping will be treated by practicing and maintaining good . housekeeping procedures. • Oxygen demanding substances from landscaping will be treated by th,e proposed Fossil Filter™ Stonn Water Filtration Systein. , . • Oil and grease from parked cars will be treated by the proposed Fossil Filter TM Stonn Water Filtration System. . • Heavy metals from parked cars will be treated by the proposed Fos.sil Filter™ Stonn Water Filtration System. • Sediment discharge due to construction activities will be treated by the use of silt fence, stockpile management, stabilized construction entrance/exit, erosion control mats and spray-on applications and gravel bag barriers. I I I I I STAINLESS STEEL SUPPORT FRAME CORNER SUPPORT BRACKETS I NEOPRENE GASKET (TWO SIDES) DURABLE WOVEN I, MESH FILTER BODY REPLACEABLE ADSORBENT-FILLED I POUCHES I I 'I I ,I I I I I I I TOP VIEW SIL T AND DEBRIS CONTAINMENT AREAS REPLACEABLE ADSORBENT-FILLED POUCHES FIL TER BODY ATTACHMENT SNAPS MODULAR DESIGN FOR EASY REPLACEMENT OF FILTER COMPONENTS' NOTES: 1. Flo-Gorll' Filter body is prefobricated from polypropylene woven monofiloment geotextile. 2. All metol components sholl be stainless s'teel (Type 304). 3, Refer to applicotion chart' for catch basin and filter sizing. 4. Filter medium shallFbesil Rock". instolled ond mointoined in accordance with manufocturer recommendotions. 5. Refer to Manufocturer's recommendations for maintenonce program. 6. Flo-Corl'! inserts may be 'installed (without adsorbent pouches) during course of construction as a sedimentotion control device. After construction. remove sediment and install adsorbent pouches. FOR APPLICA T10N CHAR SEE SHEET 2 OF 2 * Flo-Go1d Filter inserts are designed to fit catch basins with approximate dimensions shown. FOSSIL FIL TERM FLO-GAR[jM, CATCH BASIN INSERT SECTION VIEW KriStar En terprises. Inc.. Santo Rosa. CA (800) 579-8,819 SCALE: NONE PATENT PENDING I I I I I INLET GRATE I, I FLO-GAR£)" INSERT (SEE APPLICATION CHART) I I I CATCH BASIN I I I (!l I ,j I SCALE: NONE I I I I NOTES: 1. Flo-Gorll Filter body is prefobricoted from pol}?roP:tiene woven monofiloment geotextile. ' 2. All metol components sholl be stoinless steel (T}?e 304). ' ;3. Refer to opplication chort for cotch bosi~ and filter sizing, 4. Filter medium sholl Fbesil Rocl!'. installed ~nd maintained in occordonce with monufocturer ·recommendotions. 5. Refer to Monufac,turer's recommendotions for mointenonc;e progrom. 5. Flo-Garl:( inserts moy be instolled without odsorbent pouches during course of construction os 0 sedimentotion control device. After construction. remove the sediment ond install the odsorbent pouches. APPLICATION CHART* ,,!ODEL Inlet 1.0. Grote 0.0. COMMENTS NO. FF-12D 12" x 12" 14" x 14" GRA TED INLET FF-V640 " 14" x 14" 16" x 16" GRATED !NLET FF-16D 16" x 15" 18" x'18" GRA TED INLET FF-1624D 16" x 24" 16" x 25" GRA TED INLET FF-18D 18" x 18" 20" x 20" GRA TED INLET FF-1836SD 18" x 36" 18" x 40" GRA TED INLET' FF-1836DGO 18" x 3'6" 18" x 40" COMBINA TION INLET FF-24D 24" x 24" 26" x 26" GRA TED INLET FF-2430D 24" x 30" 26" x 30" , GRATED INLET FF-RF24D 24" x 24" 25" dia CIRCULAR INLET FF-24DGO 24" x 24" 18" x 35" , COMBINA TION INLET ' FF-2436D 24" x 36" 24" x 40" COMBINA TION INLET FF-i436oGO 24" x 36" 24" x 40" GRA TED INLET FF-30D 30" x 3D" 30" x 34" GRA TED INLET FF -35D(2pc) 36" x 36" 36" x 40" GRATED INLE'T FF -24480(2pc 24" x 48" 25" x 48" GRATED INLET FF-48D 48" x 48" 48" x 52': G~ATED INLET * Flo-Gord F'Nter inserts ore designed to fit cotch basins with opproximote dimensions shown. FOSSI L Fl L TER FLO,.-GARD CA TCH 8ASIN INSERT INSTALLATION DETAIL KriStor Enterprises. Inc .• Sonto Roso, CA (800) 57'\)-8819 PA TENT PENDING I I I I I I I, 'I I I "I I I 'I I I I iVlaxiflJlJ.m Filtration ,:rC;: Rates ~-,i ~, i---A ' HYDRAULIC TESTING (Bypass Flow) Tests were conducted by consulting Civil Engineer and Hydrologist Mr. David Sandine of Sandine & Associates to determine maximum filtration rates and flow impediment during high flows using the Fossil FilterTM system. Installations and tests were conducted at the Petaluma Marina in Petaluma, California. INSTALLA1l0N 1 (FLAT GRATED DRAIN INLET): Single stage Fossil Filter™ Hydrocarbon system installed into a flat grated drain inlet with an inside dimension of 27" x 27". The installed square filter had' total filter length of approximately 96" (8 linear feet) and, after installation, left an open area high-flow bypass in the center of approximately 16" x 16". INSTALLA 1l0N 2 (CURB INLET): Dual stage Fossil FilterTM system installed in a City of Petaluma standard curb opening inlet with a curb opening width of 48" (4 linear feet). Two 48" (4 linear feet) straight filter rail sections were used, totaling 96" filter length (8 linear feet). TEST 1 The first tests were conducted using a 450 GPM (1 CFS) flow rate to determine ifthe Fossil Filter™ would reduce the drainage inlet's hydraulic capacity in _ either ofthe above outlined installations. Results: A 450 GPM (1 GFS) flow rate showed no apparent restriction in flow. EqUipment was not available to test assumed design hydraulic capacities greater than 1 CFS but it was apparent that the Fossil Filter™ could have handled a ,greater flow rate without overflow. TEST 2 The second set oftests were conducted on the dual stage curb opening installation (installation 2 above), using a metered fire hydrant to determine the flow rate at which overflow of both stages of the Fossil Filter™ would occur. The tests commenced with low velocity flows similar to those encountered at the beginning of a rain event and then increased 'until overflow of the upper and then the lower stages occurred. Results: The dual stage Fossil FilterTM installed in the curb opening inlet effectively filtered a flow rate up to 45 GPM before any bypass ofthe upper stage began at 92 GPM before bypass of the lower stage began. CONCLUSIONS These tests confirmed that the Fossil Filter™ system is an effective method of filtering stormwater runoff during initial and low flows. Further, because of the bypass area designed into the Fossil Alter™, it will not restrict inlet capacity under high rate of flow -even if the Fossil Filter™ itself becomes clogged. Note: Above testing performed on original Hydrocarbon style filters. Test information 'on Flo-Gard™, Perk FilterTM and other Fossil FilterTM products http://www.kristar.com/leve12/info/infoA3.html fiGuIC-e 3.1.3 7/3112002 I I I I I I -I I I -I I ,I I I I I I I 4.0 OPERATION AND MAINTENANCE PROGRAM The operation and maintenance requirements for each type ofBMP are as follows: 4.1 Source Control BMP 4.1.1 Hazardous Material Storage Hazardous materials with the potential to contaminate urban runoff shall be: • Placed in an enclosure such as, but not limited to a cabinet, shed, or similar structure that prevents contact with rain, runoff or spillage to the _ storm water conveyance - system. • Protected by secondary containment structures such as berm, dikes, or curbs. _ • The storage shall be paved and sufficiently impervious to contain leaks and spills. • The storage shall have a roof or awning to minimize direct precipitation within the secondary containment area. 4.1.2 Trash Storage The operational and maintenance needs of trash storage shall be: • The trash storage area shall be paved with an impervious surface, designed not to allow run-on from adjoining areas. • The trash storage area shall be screened or walled to prevent off-site transport of _ trash. • All trash containers shall contain lids that exclude rain. 4.1.3 Integrated Pest Management Integrated Pest Management (rPM) is an ecosystem-based pollution prevention strategy that focuses on long-term prevention of pests or their damage through a combination of techniques such as: • Biological control • Habitat ManipUlation • Modification of cultural practices • Use of resistant plant varieties Pesticides are used only after monitoring indicates they are needed according to established guidelines. Pest control materials are selected and applied in a manner that minimizes risks to human health, beneficial and non-target organisms, and the environment. The operational and maintenance needs of an integrated pest. management shall be: • Plant pest-resistant or well-adapted plant varieties such as native plants to eliminate and/or reduce the need for pesticide use in the project design. • Discourage pests by modifying the site and landscape design. : -! ! I I I I I I I I I I I ,I I ,41 I I I I I Preventive Maintenance Pollution prevention is the primary "first line of defense" because pollutants that are never used do not have to be controlled or treated. Educational materials shall be distributed to future site residents/tenants with the following topics: • Keeping pests out of building and landscaping using barriers, screens and caulking. • Physical pest elimination techniques such as weeding, squashing, trapping, washing, or pruning out pests. • Relying on natural predators to eat the pests • Proper use of pesticide as a last line of defense. , 4.1.4 Inlet / Catch Basin Tiles All concrete catch basins shall be adorned with tiles containing prohibitive language and/or icons to discourage illegal dumping. The legibility of the tiles 'Yill be· maintained and they will be placed flush with the top of the concrete to reduce tripping by pedestrians. All tiles shall be inspected at least once a month or as directed by the local governing agency. Should the legibility of the tile be in question, then the tile shall be repaired or replaced to restore fuil legibility. . 4.1.5. GOQd Housekeeping The operational and maintenance needs associated with good housekeeping are: • Keep outdoor areas in a neat and orderly condition. • Pick up garbage left within the pavement and landscape areas. • Periodic sweeping of the paved areas. • Removal of all freshly trimmed landscape items and natural deposited items such as annual leaves and disposal off-site per governing codes. • Apply all fertilizer, herbicide or pesticide in the amount and application as provided by the manufacturer. Inspection Frequency I The site will be inspected and inspection visits will be completely documented: • On a weekly basis or a directed by the local governing official Aesthetic and Functional Maintenance Both forms of maintenance will be combined into an overall Stormwater Management System Maintenance. Aesthetic Maintenance The following activities will be included in the aesthetic maintenance program: • Keep outdoor areas in a neat and orderly condition. I I I I I I II I I . 1 I I I I I I • Pick up garbage left within the pavement and landscape areas. • Periodic sweeping of the paved areas. . • Removal of all freshly trimmed landscape items and natural deposited items such as annual leaves and disposal off-site per governing codes. . • . Weed Control. Weeds will be removed through mechanical means. Herbicide will not be used because these chemicals may impact the water quality monitoring. Functional Maintenance Functional maintenance has two components: . Preventive maintenance Corrective maintenance Preventive Maintenance Preventive maintenance activities to be instituted with good housekeeping are: • Apply all fertilizer, herbicide or pesticide in the amount and application as. provided by the manufacturer. Corrective Maintenance Corrective maintenance is required on an emergency or non-routine basis. Corrective maintenance activities include: • General Facility Maintenance. General corrective maintenance will address the overall facility and its associated components. If corrective maintenance is being done to one component, other components will be inspected to see if maintenance is needed . Hazardous Waste Suspected hazardous wastes will be analyzed to determine disposal options. . Hazardous wastes generated onsite will be handled and disposed of according to applicable local, state, and federal regulations. A solid or liquid waste is considered a hazardous waste if it exceeds the criteria listed in the CCR, Title 22, Article 11. 4.2 Treatment Control BMPs The person responsible for maintenance of the BMPs is and he can be reached at . ,~ I I I I' I I I I I " I I I I I I I I I 4.2.1 Fossil Filter™ Storm Water Filtration System The operational and maintenance needs of a Fossil Filter™ Storm Water Filtration System are: • Removal of contaminants, sediments and debris from stormwater runoff. • Absorption of petroleum hydrocarbons and oil-based products from stormwater runoff Inspection Frequency The Fossil Filte/M Storm Water Filtration System will be inspected on a regular basis. The frequency of inspection would be based on pollutant loading, amount of debris, leaves, etc., and amount of runoff The manufacturer's recommendations include no less than three inspections .per year. Manufacturer guidelines for inspection frequency are: • For areas with a definite rainy season: Prior to and during the rainy season. • For areas subject to year-round rainfall: On a recurring (preferably scheduled) basis. • For areas with winter snow and summer rain: Prior to and just after the snow season and during the summer rain season. • ~or filters not subject to the elements (wash racks, parking garages, etc.): Inspections should be on a regular basis. Aesthetic Maintenance The parking lot will be swept on a regular basis. Sediment and debris (litter,.leaves, papers, cans, etc.) ,within the area and especially around the drainage inlet will be'collected and removed Preventive Maintenance Preventive mainten,ance for the Fossil Filter™ and Flo-Gard™ Storm Water ~iltration System will be: • After broom sweeping and removal of debris around the inlet, the catch basin grate will be removed and the condition of the screens will be checked. • For Hydrocarbon units with screens covering the adsorbent, the condition of the screen' will be checked and the adsorbent will be inspected through the screen. If excessive silt covers the top of the adsorbent or if the adsorbent granules are more than one,.half coated with a dark gray or black substance, the adsorbent will be replaced. • For' Flo-Gard™ units with adsorbent pouches, the condition of the pouches will be checked and a visual inspection made of the enclosed adsorbent. If the granules are covered, the pouches will be replaced. 1 1 1 I 1 I I -I I I 1 1 I ,I I I • For Flo_Gard™ :filters, which have a fabric :filter body, the serviceability of the fabric will be detennined and, if called for, replaced with a new one. Corrective Maintenance Corrective maintenance is required when the exposed adsorbent :filter medium needs 'to be replaced. To replace the :filter medium, the steps are: - • To avoid spilling the exposed adsorbent :filter medium into or onto the surrounding surface, the person replacing the adsorbent should move away from the inlet and work -over a large work cloth. • All exposed adsorbent and collected debris must be dumped into a D.G.T.-approved container for later disposal. The method of replacing the adsorbent depends on the type ~~ - • For :filters with removable :filter cartridges, the cartridges need to be removed from _ the filter,_ the end caps removed and ,the exposed material poured out. The new adsorbent will be poured into the adsorbent containment area to a level about l-Yz inches from the top screen when the filter cartridge or :filter is level. • For :filters with one-piece top screens, the entire filter needs to be removed to the work area, the top screen removed and the exposed material poured out. The .1.1ew adsorbent will be poured into the adsorbent containment area to a level about I-:Yz inches from the top screen when the :filter cartridge or filter is level. • For filters with adsorbent pouches, the pouches need to be removed and dispo~ed of. , The new adsorbent pouches are snapped into place. Disposal of Exposed Adsorbent, Depris and Trash -The exposed adsorbent, debris and trash that is generated, will be properly disposed of by Vigilucci's Seafood and Steakhouse. • The exposed adsorbent is non-biodegradable, non-leaching and non-carcinogenic so, with proper handling and documentation, it can be disposed of at a landfill. However, 1>ecause disposal regulations vary by area, Vigilucci' s Seafood and Steakhouse will contact their local regulatory agency and land:fill to ensure compliance with local and state environmental regulations. Hazardous Waste " Suspected hazardous wastes will be analyzed to determine disposal options. Hazardous wastes generated onsite will be handled and disposed of according to applicable local, state, and federal regulations. A solid or liquid waste is considered a hazardous waste if it exceeds the criteria listed in the CCR, Title 22, Article 11. I I I I I I, I I I I I I I I I I I 5.0 FISCAL RESOURCES Vigilucci's Seafood and Steakhouse is aware of its responsibility to maintain all construction and post-construction BMPs to ensure they are all in good working order. They understand that as part ofthe discretionary project review process, the City of Carlsbad will include maintenance conditions in the permit conditions and that security may be required. In addition, Vigilucci's Seafood and Steakhouse is aware that the City of Carlsbad may require Vigilucci's Seafood and Steakhouse to enter into a contract with the City obliging Vigilucci's Seafood an4 Steakhouse to maintain, repair and replace the storm water BMP as necessary into perpetuity and that security may be required. 6.0 CONCLUSIONS The proposed drainage improvement to Vigilucci' s Seafood and Steakhouse should not adversely impact the beneficial uses of the Agua Hedionda Hydrologic Subarea (HSA 904.31) of the Carlsbad Hydrologic Unit. In order to minimize water quality impacts associated with development, Vigilucci' s Seafood and Steakhouse will institute she design, source control and treatment control BMPs as identified in Section 3.2 of this report. The target pollutants generated by this site and the proposed BMPs to treat them are as follows: • Nutrients from fertilizers will be treated primarily by practicing and maintaining good , housekeeping procedures and by the Fossil Filter TM Storm Water Filtration System as , a seco;ndary BMP. • Trash and debris will be treated by practicing and maintaining good housekeeping procedures. • Pesticides from landscaping will be treated by practicing and maintaining good housekeeping procedures. , • Oxygen demanding substances from landscaping will be treated by the proposed Fossil Filter™ Storm Water Filtration System., • Oil and grease from parked cars will be treated by the proposed Fossil Filter™ Storm Water Filtration System. ' , • Heavy metals from parked 'cars will be treated b~ the proposed Fossil'Filter™ Storm Water Filtration System. • Sediment discharge due to construction, activities will be treated by the use of silt fence, stockpile management, stabilized construction entrance/exit~ erosion control mats and spray-on applications and gravel bag barriers. Although none of the BMPs chosen are rated as having a High Removal Efficiency, ' Vigilucci's Seafood and Steakhouse believes that it has addressed the water quality. issues to the maximum extent practicable considering the size of this site and the amount of runoff generated. I I I <I I I/B/o4 I Date I I I I I <I I I' I I I < I I I I I I I I I I I '.1 I ,I· I I 'I I I I i. POST-CONSTRUCTION STORM WATER MANAGMENT The SWMP shall describe the control practices to reduce pollutants in storm water discharges after all construction phases have been compieted at the site. These must be consistent with all local post-construction ~torm water management requirements, policies, and guidelines.' The discharger must consider site-specific and seasonal conditions when designing the control practices. Operation and maintenance of control practices after construction is completed shall be' addressed, including short-and long-term funding sources and the responsible' party. Post-construction stonn water control pra~tices.for Vigilucci's Seafood and Steakhouse will be the responsibility of Vigilucci's Seafood and Steakhouse; Good housekeeping practices will also be implemented for the project site. These practices include the controlled application of carefully selected fertilizers and pesticides, and a general on-site maintenance and disposal program to keep the site' free of litter and debris. All waste material generated will be properly disposed of at an approved disposal site. Trash should be separated by type of handling required, as described within this SWMP. Waste Management and Disposal All wastes (including equipment maintenance waste) disposed at the sit~ or removed from the site for disposal shall be disposed of in compliance with Federal, State, and local laws, regulations, and ordinance. ii. Maintenance, Inspection, and Repair The SWMP shall include maintenance, inspections, and repair procedures to ensure that all grade surfaces, walls, dams and structures, vegetation, erosion and sediment control measures, and other protective devices identified in the site plan are maintained in good and effective condition and are Pfpmptly repaired or restored. . I , The most important aspects of maintenance, inspection, and repair are re~ord keeping, tracking, and documentation practices. Inspection should occur prior to and after every rainfall event A contact person to be responsible for answering various maintenance questions regarding this project has been identified from the Field Maintenance Contact Person Fonn located in the Attachment D. It is preferred I I I I I I I I I I , , I I I ,~ I I I I I I that this person be the construction site manager, familiar with the site and charged with compliance and oversight of the SWMP. The project area will be regularly inspected to ensure that it is maintained in good and effective condition. Also included in the Attachment D is a table which describes the protective devices, what to look for, types of maintenance measures for sediment control, and example checklists to be used to check areas for sediment' and ,other potential pollutants and provide documentary evidence that inspection procedures are adhered to. These checklists include: • Visual inspection checklist • Good housekeeping practices checklist • Site assessment checklist iii. Treatment Controls iv. Treatment controls are measures applied to remove soil and other pollutants from storm water before they leave the site. The "first flush" (approximately the first % " of water falling on an area) often contains a high concentration of pollutants that have been accUmulating since the last rainfall. This site will utilize Fossil Filter™ Inserts to remove pollutants. Maintenance shall be the responsibility ofVigilucci's Seafood and Steakhouse. Training The SWMP shall include procedures to ensure that all inspections required in ' Attachment 'B J Receiving Waters Monitoring and Reporting Program for Ord~r No. 2001-01 are done by trained personnel. Inspection of the implementation of the SWMP must be done by trained personnel. In addition, training ,of contractors and sub-contractors can be an important BMP. To accomplish this Vigilucci's Seafood and Steakhouse shall hold a training seminar for designated owner representatives, contractors and sub-contractors. The seminar shall cover' the following topics: ' • Background of "pointless Pollution" videq on non-point source pollution • Information on potential fines, citizen lawsuits • Review of the SWMP section by section • Common problem areas in implementation I I I I I I I I I I I I 'I I I I v. vi. • Review of monitoring checklists • Construction details of protective measures The goal of the storm water management training program is to inform employees, contractors, and subcontractors of their levels of responsibility for components and goals of the SWMP. This training program is a preventative maintenance technique, because when properly informed, employees, contractors, and subcontractors have increased awareness and are more capable of preventing spills, responding safely and effectively to accidents, and recognizing situations that could lead to storm water contamination. Storm water management training should be provided regularly by Vigilucci' s Seafood and Steakhouse. One training session should ,be presented just prior to the start of the rainy season. Topics can include, but are not limited to: spill prevention and response, inspection records, annual reporting, locations and functions of sediment control devices, food housekeeping and material management practices. Attendance records should be kept for each training session. Inspection logs and checklists should be distributed to all personnel who will be performing the monitoring and reporting. List of Contractors/Subcontractors The SWMP shall include a list of all contractors (or subcontractors) responsible for implementing the SWMP. A list of contractors and subcontractors responsible for the implementation of the SWMP at the project site and their involvement shall be provided by the General Contractor. The list shall be as complete as possible at the il}itial date of preparation of the SWMP and will be amended periodically as ' additional contractors or subcontractors become involved. The contraCtors and subcontractors shall go through the training program, as outlined in the recommended training procedures of this SWMP. They shall also be informed of the recommended good housekeeping practices and control measures. I • Other Plans This SWMP may incorporate, by reference, the appropriate elements of other plans required by local, State, or Federal agencies. A copy of any requirements incorporated by reference shall be kept at the construction site. This SWMP references no other plans at this time. I I I I I I. I I ·1 I , . I I I I .j ·1 I I I I vii. Public Access The SWMP is considered a report that shall be available to the public under Section 308 (b) of the CWA. Upon request by members of the public, the discharger shall make available for review a copy of the SWMP either to the Regional Water Board or directly to the requestor. This SWMP will be made ava~lable for review by the RWQCB, City personnel or any requestor. viii., Monitoring and reporting. Records generated from all inspections, maintenance operations, compliance certification, and noncompliance reporting should be retained for a period of at least three years after the termination of coverage under the Permit. These " records do not have to be submitted with the exception of noncompliance reporting. The project records for monitoring arid reporting in accordance with the SWMP will be maintained at the construction site office. The compliance certification, which is located in the Attachment 'D', is to be compl~ted on July 1 of every year th:roughout construction. After construction, monitoring and inspection reports shall be the responsibility ofVigilucci's Seafood and Steakhouse. All project records for monitoring and reporting in accordance with the SWMP shall be the responsibility ofVigilucci's Seafood and Steakhouse. Vigilucci's Seafood and Steakhouse may decide to hire out the maintenance and inspections of the SWMP, however, the filing and reports of the monitoring and inspection shall be the responsibility ofVigilucci's Seafood and Steakhouse .. Inspections must be performed prior to anticipated storm events and after actual storm events. During extended storm events, a minimum of one inspection for each 24-hour period must be conducted. Periodic ~spections should occur weekly, and a review of the inspection be made'part of the permanent records. See Attachment 'D' for forms ix. Reporting Requirements Reports need to be filed to certify compliance annually, or when there is a noncompliance. I I I I I I I I -I I . 1 I I I- I I I x. Site in compliance:- A Compliance Certification must be filed annually; The report must certify that construction activities are in compliance with the requirements of the Pennit and the SWMP, based on the site inspections. Site in noncompliance: If an inspection finds noncompliance with the SWMP, then it noncompliance report must be filed with the Regional Water Board. Corrective measures should be implemented immediately following discovery that water quality standards were exceeded.. Use the fonn supplied in the appendix to detail the type of noncompliance, the actions necessary to achieve compliance, and a time schedule for achieving compliance. Noncompliance notifications must be submitted within 30 calendar days of identification of noncompliance. Reports should be mailed to: John Robertus Stonn Water Unit California Regional Water Quality Control Board San Diego Region 9771 Clairemont Mesa Blvd., Suite A San Diego, CA 92124-1324 Tel (858) 467 -2952 Fax (858) 571 -6972 Record Retention Records of all inspections, compliance certifications and noncompliance reporting must be retained for a period of at least five years . ·1 I I I' I .1 I I 'I I I I I ,j I I I· I 'I I ATTACHMENT A VICINITY MAP I I I I I \ \ I z' @ ~\ I, 'I ,0 ~ ,~ ~ 0 I ~ 0 ~ :::u < rrJ I' AVE. 'I I I .1 VICINITY MAP NOT TO SCALE I I , I I I I I I I I I- I I I I -I- -I I , I' I '1 I I I- I 'I I ATTACHMENT B PROJECT MAP (DRAINAGE IMPROVEMENT PLAN) " , , -,.-- , .... 362 , , 'f. ~-.-<-.. _,<_-,( ___ ,L . / EXIS!' HOUSE , . , -1 , , ·'1 , 1 \,( \/ \ . ! " " .. ,. i t. , --,',', '. '--'.-' -li- , ... -:-; .. DRAINAGE NOTE THE LOT DRAINAGE IS COLLECTED A T VARIOUS LOCA TlONS BY AREA DRAINS WITH APPROVED FOSSIL FlL TERS CONVEYING UNDER THE SIDEWALK TO THE CURB AND GUTTER BY EXISTING SIDEWALK UNDERDRAINS AND FLOW VIA GUTTER TO THE EXISnNG INLET BOX. Si'l/R. (.'!, M'iOur _,J <C I II EX DIRT TCH BASIN 103.67TG, 103.001£ ", -. -,.---.-.. --------w--~---'-----"--" EXIST. APARTMENT BUlWINGS PALJSADES. BLocK G MAP No" 'J747 NJ4'JJ'OO'W lJ9.66' - [X DiRT - - ~-.: ~J ~.,-; '-'-.1 , / (/ (' n0.<15 ~~~---,-,---- ~----~---,-W'------------~ ~ I! I I 1 I : . ,-__ 'I 1:] C· J L:::JCJ 0 C.J DO 0 C] C] LJ!:::J [::J[~"::' r::~J ClC} 0 C:: 1i P 1(}/42 I P 1()·;'.O~' 'lI.----_ ",_ ["l' '-,.' $ q-:: IJ, .~. -'~ P 1()3.9~; lJ----. ------.-~ ',;;rl·· .. ·,::c-"-:::c:. :._. ,i-.. ~, Iii ii 16LF ~ @ MIN. I.Vii, '-/ -8?i rr) I' --'";:,, . , <J • I {x:~, T PUFf ~':!?S i , ... '. y i·J I , ,~! 1--//' 'v ,. ,-----.. ---.,-----------:r I I EXIST HR. TiES G 104.87 .-- P 104.23 0---.. · , ' o I /r,'(!~~r pi_Af-nrRs-/ I .~ ~. ! [XiSr SW'r? MAIN' PfR 164-5 ----.-~--"--.. ~ p, .-:, I , I • I '" p •.... -":::::·I~ 1 : It) '10 ·K i,fU !!l') i I i !'l ~ . ~ CL 30' DWY ....... _l ...... _._.~..... ,'",._, _____ , __ . ___ ~ __ . __________ ~ ____ I I 1 TC 40 I ! .-_.---+.-.,-~:.~ .. -_ [l.,j , .~ 1;"~ i~i Q. I, 'i:; "" ,~ 1 __ ':: , 100.75 ,,~,--- 111 ~ Z ~ 111 > « VA -'-, o « C( « 'S -0:::., I • ,,.. .'J" I"VT>' ' .. \. ~ I' "', , ''''--'---l I t 1 , I I I CAUTION !! II EXISTING GAS MAIN! I r EXACT LOCA TlON UNKNOWM CONTRACTOR TO LOCA TE ~, '" PRIOR TO CONSTR~CTlON. I ...... -.-......... -0-.. ,-~.~ I '" -, .. ~-6-r·--t- . EXISJ. W!R, MAiN PER 764-5 _ --.. -~, --------.---~.----,,-----------.-~.-------------~" .. --,,~--w .. ---.--------,----.. --------~-------" --- --.------, ------,_.-----.----~-,-.,~-""---',,,," --.--~--~ ., . DRAINAGE IMPROVEMENT PLAN SCALE: 1'=10' . , " LEGEND . PROJECT BOUNDARY· EXlSnNG SPOT ELEVA nONS' EXlSnNG BUILDING UNE 43.5 EXISnNG SANITARY SEWER 4e MANHOLE· .----~~ ..... !) ............ , ........ .. EXlSnNG WA TER MAIN' EXlSnNG GAS I/AIN ' EXISnNG STORM DRAIN· -.----~-.--" <-----• --- _+~_. _____ , , ___ , _____ .. __ ._" <_._c, ___ _ ._---------,---------,--_ .. ----.. --------- EXlSnNG STORM DRAIN STRUCTURE' EXlSnNG WA TER LA TERAI: EXlSnNG STREET UGHT- '" PROPOSED AC PAVING· , , . ., . EXlSnNG J" PVC ' PROPOSED J" PVC, ... '---------_.-----'- PROPOSED 12" x 12" CA TCH BASIN • ---1!jJI--- STAINLESS STEEL SUPPORT FRAM CORNER SUPPORT BRACKE NEOPRENE GASKET (TWO SIDES DURABLE WOVE MESH FILTER BODY REPLACEABLE. ADSORBENT"-FILLc'IJ'\ POUCHES GRAPHICAL SCALE \ VICINfTY MAP NO SCALE FILTER BODY ATTACHMENT SNAPS T AND DEBRIS AREAS a J J I'-,.~ I REPLACEABLE ADSORBENT-FILLED POUCHES SECTION VIEW ': SCALE' NONE r-------~~ .. --------~ r-~----~~.'--------- HIGH FL BYPASS TOP lt1EW FOSSIL FlL TER FLO-GARD TM TM CA TCH BASIN INSERT MODEL' FF-12D (MODIFIED) 1 1 .. PARTNERS JO Planning and Engineering 15938 Bernardo Cetner Drive San Diego, CA. 92127. ' Ph. (85/$) 376-3444 . " . Fax: (858) 376-3555 REVISIONS BY -, ,~.:':\ -;t;. -.'- t,) ;"-0:;:; , , i"~ ':J 'T; t,'l:; 'n \~ Q;I ,,'1 ,0 "..~ '" 1\"1 ..;) o -'-.~ v; !"-.,.., ~ D .'-. ,\'J' , _-1--0' ·m ,~ .-,. '.f) ... : {;:;l ::> d W ofi ,,; ~') ff/ ",..-, ' \;,,: II: c· ~ ',; o , •• Z C <-,-~ :I ~: '.: ,~ .~ .~ ~ .~ ] a:! Q) If) z :s Q.. W ~ Z -~ C C w rn o Q.. o a: Q.. Dote: 8 JANUARY 04 Scale: AS NOTED Drawn: G/.R Approved: LD Job: 362.0 Sheet: C-1 Of She.t. I I ATTACHMENT C I DRAINAGE STUDY . I I , , I I· " ! . J ; 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 I I' I STORM DRAIN REPORT FOR _ VlGILUCCI'S SEAFOOD AND STEAKHOUSE- 3878 Carlsbad Blvd. Carlsbad, California 92008 January 8, 2004 CUP 02-19 Prepared By: PARTNERS Planning and Engineering , 15938 Bernardo Center Drive Andrew J. Kann P. ., Registration Expires San Diego, CA 92127 (858) 376-3444 ~I I I I I I I I I I I I I I I I,· I I I I SITE AND PROJECT DESCRIPTION METHODOLOGY EXISTING CONDITIONS DEVELOPED CONDITIONS EXISTING RUNOFF ANALYSIS DEVELOPED RUNOFF ANALYSIS CATCH BASIN DESIGN AND ANALYSIS CULVERT DESIGN AND ANALYSIS RESULTS AND CONCLUSIONS LIST OF FIGURES FIGURE 1: VICINITY MAP FIGURE 2A: EXISTING HYDROLOGY MAP FIGURE 2B: PROPOSED HYDROLOGY MAP LIST OF TABLES TABLE 1: HYDROLOGY/INLET SUMMARY TABLE 2: DEVELOPED HYDRAULIC CALCS LIST OF APPENDICES Appendix 1: Runoff Coefficients . Appendix 2: Intensity -Duration -Frequency Curves for County of San Diego Appendix 3: Urban Areas Overland Time of Flow Curves Appendix 4: Nomograph -Grate Inlet Capacity in Sump Conditions Appendix 5: Handbook of Hydraulics Table& 7-4 & 7-14 page 1 page 1 page 1 page 1 page 3 page 3 'page 3 page 3 page 3 page 2 attached attached 'page 4 page ,5 I I I I' I I I ,I I I I I I I I' I I I This storm drain report has been prepared as part of the CUP submittal requirements for the proposed improvements for Vigilucci's Seafood and Steakhouse: The proposed improvements include re-striping the parking lot for valet use and replacing the two existing grated catch basins with three 12" x 12" grated catch basins fitted with Fossil Filter Inserts for water quality purposes. The project site'is located on the northeast comer of Tamarack Avenue and Carlsbad Blvd (PCR). Access to the site occurs via Tamarack Avenue. See Figure No.1 for Vicinity Map. See Figure 2A and 2B attached at the end of this report for the existing ~d proposed drainage basin limits. METHODOLOGY This drainage report has been prepared in accordance with current City of Carlsbad regulations and procedures. The proposed 12" x 12" grated catch basins were designed to , i:ntercept the 100-year storm. The Modified Rational Method was used to compute the anticipated runoff. See Tables 1 and 2 for design calculations. The following references have been used in preparation of this report: ' (1) City of San Diego Drainage Design Manual, April 1984. (2) County of San Diego Hydrology Manual, Apri11993. (3) Handbook of Hydraulics, E.F. Brater & H.W. King, 6th Ed., 1976. EXISTING CONDITIONS: Approximately 40% of the existing site drains to one of the two existing grated catch basins on site. The storm water intercepted by the catch basins is then conveyed via an existing 3- inch PVC culvert to Carlsbad Blvd. Due to the limiting nature of the 3-inch culvert, storm water ponds in the temporarily on-site in the vicinity of the catch basins until all of the storm water is conveyed off-site. The ,remainder of the site, including a portion of the parking lot and roof drainage, sheet flows'to Carlsbad Blvd. There is an existing Type 'B' curb inlet located approximately 20' downstream of the curb outlet that intercepts the storm water from the westerly half of Carlsbad Blvd DEVELOPED CONDITIONS: The proposed improvements include re-striping the parking lot for valet use and'replacing the two existing grated catch basins with three 12" X 12" grated catch basins fitted ,with Fossil Filter Inserts for water quality purposes. The addition of the third ,catch basin will create some additional ponding on-site, but site constraints made this situation,unavoidable. The third catch basin was added to ensure that all of the runoff from the parking lot would be cleansed prior to exiting the site. The remainder of the runoffpattems will remain unchanged. , I I ·1·' 'I .J I' I I I I I I I I I I I I I I FIGURE 1, \ @ AVE. I VICINITY MAP NOT TO SCALE I, I I I' I I I I I I I I .1 I I I I I I EXISTING RUNOFF ANALYSIS: The existing site receives no offsite run on. There are two existing grate inlets located in the northwesterly portion of the parking area. Runoff from the parking area currently sheet flows from southeast to northwest to the existing inlets. The inlets are·connected by a.3" pvC storm drain system that also includes a direct connection from one of the roof drains. A runoff coefficient of 0.95 would be appropriate for the existing basin. See Table 1, Hydrology/Wet Summary for a breakdown for each basin. I DEVELOPED RUNOFF ANALYSIS: The proposed 12" x 12" grated catch basins were designed to intercept the IOO-year flow. The runoff coefficients for the site were based on soil group.D and the ultimate improvements for the proposed site. A coefficient of 0.95 was used for all1paved areas. See Table 1, Hydrologylfulet Summary for a breakdown for each basin .. CATCH BASIN DESIGN AND ANALYSIS: The catch basins were designed for orifice type flow, or flow through a grate under ponding conditions and at grade condition. See Appendix 4 for the nomograph used to size the grated catch basins. The allowable discharge for grated catch basin was calculated assumiilg a minimum 0.3' head sump condition and"SO% of the grate open area assumed clo~ged. CULVERT DESIGN AND ANALYSIS: The'circular storm drain culverts were sized using King's Handbook (Reference 2) Table 7- 14 to verify cap~city. For circular conduits: K' = QnI[dA(8/3)SA(l/2)] where K' = Discharge Factor " Q = RunoffDischarge'(cfs) n = Manning's Coefficient d = Diameter of Conduit (ft) s = Pipe Slope (ftlft) See Table 2, Hydrology and Hydraulic Calcs, for culvert sizing. RESULTS AND CONCLUSIONS The proposed improvements do not increase to the amount of storm water runoff generated versus the existing condition. Both the existing ~d proposed'conditions generate 1.3 cfs during the 100-year storm. The threel2" x 12" catch basins were strategically placed to intercept all ofthe storm water runoffwithin the parking lot. The storm water intercepted by the catch basins is then conveyed via an existing 3-inch PVC culvert to Carlsbad Blvd. Due' to the limiting nature of the 3-inch culvert, storm water ponds in the temporarily on-site in the vicinity of the catch basins until all of the storm water is conveyed off-site I, • t __ R~Yl_ET""M" ( __ ..... __ , ...... __ , ,_I .... Basin Area C L So Tc No. (ac) (ft) (ft\ft) (min) Existing XA 0.07 0.95 - -5.0 XB 0.06 0.95 . --5.0 XC 0.14 0.95 - -5.0 Xl:> 0.03 0.95 - -5.0 ------ XE 0.02 0.95 -5.0 --- Proposed ----_.- A 0.07 O.~~ --5.0 ----B 0.06 0.95 --5.0 C 0.11 0.95 --5.0 0 0.03 0.95 --5.0 E 0.03 0.95 1-. --5.0 -F 0.02 0.95 - -5.0 ---_. . 36~-sd I Q STRUCT. Inlet Gutter (in/hr) (cfs) Type Slope 4.40 0.29 Trench Drain - 4.40 0.25 Trench Drain - 4.40 0.59 Sheet Flow - 4.40 0.13 Sheet Flow - 4.40 0.08 Sheet Flow - 4.40 0.29 Catch Basin - 4.40 0.25 Catch Basin - 4.40 0.46 Catch Basin - 4.40 0.13 Roof Drain - 4.40 0.13 Sheet Flow - 4.40 0.08 Sheet Flow - Flow "A" Inlet Depth . Length (Open) --- - -- --- -- - --- --- --- --- --- - -- -- - Remarks lOO-yr event - - - - >' ~ ~ ~ - Page 1 _ "R~Y_·"·" '-___ - _ ,_ .. 1_ -'-!1/~4- HYDRAULIC CALCS Confl. Sub-AREA "C" CA Sum L(ft) S(%) Ti Tt Point Basin Ac. CA (Ovrlnd) (fg) (min) (min) -- XA 0.07 0.95 0.07 0.07 --5.0 0.0 XB 0.06 0.95 0.06 0.12 --5.0 0.0 XD 0.03 1 0.95 0.03 0.15 - -5.0 0.0 -- A 0.07 0.95 COm 0.07 --5.0 0.0 B 0.06 0.95 0.06 0.12 --5.0 0.0 -----D ----::-::-;:- 0.95 om 0.15 5.0 0.0 0 . .03 -- C 0.11 0.95 0.10 0.26 --5.0 0.0 ----- -- -- ------I- --I----I- I-- r-- ------ -- --- --I-- ------ - .. c .. 362-sd Tc I Q L (ft) S(%) Dia. min. inlhr cfs (Pipe) (Pipe) (in) 5.0 4.40 0.3 30.00 1.00 3 5.0 4.40 0.5 25.00 1.00 3 5.0 4.40 0.67 52.00 2.00 3 5.0 4.40 0.29 30.00 1.00 3 5.0 4.40 0.54 25.00 1.00 3 5.0 4.40 0.67 12.00 2.00 3 5.0 14:40 1.13 40.00 2.00 3 ---- K' D\d Ca 1.534 1.00 0.79 2.848 1.00 0.79 2.479 1.00 0.79 1.534 1.00 0.79 2.848 1.00 0.79 2.479 1.00 0.79 4.183 1.00 0.79 - - - ------- ·v (fps) 6.0 11.1 13.6 6.0 11.1 13.6 23.0 - - NOnS 100 -yr event 3" culvert under pressure 3" culvert under Eressure 3" culvert under pressure 3" culvert under pressure 3" culvert under pressure 3" culvert under pressure 3" culvert under pressure Page 2 ~ VI too ~ ~ I I' I I APPENDIX I' 00 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 I I I 'I I RUNOFF COEFFICIENTS (RATIONAL METHOD) DEVELOPED AREAS (URBAN) Land Use Residential: Single Family .40 Multi-Units .45 Mobile Homes .45 Rural (lots g'reaier'than 1/2 acre) .30 Commercial 121 80% Impervious .70 Industrial 121 90% Impervious .80 Coefficient. C Soil Group III .45 .50 .5'5 .50 .60 .70 .50 .55 .65 .35 .40 .75 .80 .85 .85 .90 .95 NOTES: III 121 Soil Group maps are available at the offices of the Department of Public Works. Where actual conditions deviate significantly from the tabwlated imperviousness values of 80% OT 90%, the values given fOT coefficient C, may be .revised by' multiplying 80% or 90% by, the ratio of actual imperviousness to the tabulated imperviousness. However, in no case shall the final coefficient be less than 0.50. For example: Consider commercial pro'perty on D soil group. Actual imperviousness = 50% Tabulated imperviousness :::: 80% Revised C = 50 x 0.85 = 0.53 ' 80 A-I IV-A-9 APPENDIX IX I' ..... ...J ........... ...J .., In..., ,- , I _ .. __ .. _____ ... ----................ r .. _ • ElEV, rACTOR . 0-'500 lOO ~00-3000 1.2' 3000-4000 t, -42 "OOO-SOOO .. 60 5000-(,000 1.70 DESERT 1.2~ To o~'oi" II;'OUect In'tn,Ur, multiply In''''111, on tho,t CP Vl ~,faclor for ... 1," ":t> \ ~ . \ '"'r \ \ "., tl,voilo". »' "U '1J f'l1 ·z 0' -. X n 0 C Z· -i n -< .... '.= o .:;0 o .... 1< " 1(11 en '(1) l> z 0 m Gl. 0 -Z -t fT1 ~ v;. ~ -< I O. c ;U l> ~ -0 z I .". ::0 n1 0 c rrl Z ,..,. ~ ~ z -n ~ r r DURATI.ON ·MINUTES HOURS. 10 .20' 30 4 0 ~ 0 , 2 3 "5 6 7 8. 9 ~.O~"H I!!TI,I!'IIII I ~ IUIII i!:'!I~lTi! f:l' " -11111: d 11:1!1Iit;: ~ 40 . s~II;··:·'.:-: ... ~-~l.::.:~:II.: ···-H-· f-O-rO-'''~. I! ·t~:I[u.:.: . -,' ~ ~ ~ I In -. .:., -., T r:Jid': ~ :!j :'.! I I " -r I: ~. ::::: IT.:· . ... ::; ~ ! .. F :.. . I-•. ::. Lj~ :.: I ". I:: flL~ii#:' . • ~. ,. 'I'---.~ ... -... "1' '. I' " ... --.. -. . 1,.1 .• to '. ~ • 0' : : ... ,. . .. : II ! ..;. : : I •. t •• ,. ! ___ : ~ 3 " ()-~ f:ii riO l!~"~i:=>:: .. ~ i:: ::.~~ ~; ~h! ~ ( "" _~ = "" ~ "; ~1:rI~ !"'"; ii! =:::'"_ o mJ ~ ... II .It~ . . . ··~I ... k ~ -.r? --.... 1.1, ~ •• {I . ..... -. r:::.:f:,-r-~. ~I 1-.. :tp::.:J !i -f-+-:..:. =-. . :t.~r:....: ':'.L .'.~ l:' :..:::--i= ::..: ! I: . .:: ..:..::.:::.:.:1::: gl . .::: ~~-: .... ,:.:.. ~.: U2 11.;f-__ (9 "-'tt' .-~ .. ~. -J-i. '1 t"';: ........... ) "·"'1 .. , -r-::--r: , .. ,., r.·tTt-·'l· l[·-·--w -1 -. :.;·1.. ,. .::.. . -$" ~...... .• . .,]:. ":;l':".!~ I'~' "~ ,... -". . .... _--•• -.... ~ . ,..". .. -'" ...,. ,-~ .... , ---+-- . J--.. .• ... -.1--. f-. _~ _ O "L-'rl~"~"'I' -...... r.,..... ... ,. I ..... '-1 ... , •. ,. ..... I.· ~ ... ~ ... ;"!--f-- 2 v-~---, ~. . t' --........ L.. 1-'~ . t ' ~'p. t"1-" ...... s . ..-.... " .... l--.,J+I·· "\....~. :.. -"--'--'t-II I···~L. t-il Z c= .... .• ,.1 K' _. ...... ... . ........... ,~ +---....... • -. • •. _ 1 __ _ --. j" E~:S !I:I ~' i'N! t?R~" ... ~ .-~. . . ,:..t .. ~·t· . j, '." ..••. ~r l"f--_ -......J .-..... t>1 •. -.~~ .... ~-..... ~. ·1 _.. ,-, -I· ... , .. 11 I-f--(f) 0 _ , .•. -~-I-i::> • 4 _, . , ,. . . _ _ -:z: "",1-.. _,. ~.I""'I::-f-. t">r-.~·t~l· ,", . ~ • I ' " I~r p ,,:',.., t· .----r=l .,. ,._.-, ... , .... 1-... '-" •• h;i .. ~ ..... ~ ,II. I. !ll~1 •. , ..... ~ '" ._~ , I' ,..... • • I ~ • • •• f .' , >-0: .., ... -.... , .... t:-. . -II _. '·1. It--·· I.." P , ......... , J 'ji,.~. _1_ -a. 1.0 ~ .~ I"!! T lli' ~': .... r; ~~ttl ; . 1 ~, "I~~;""L .~ •• hi , '''''' • " . [ • r ... ) ~ i'. I, ;. . "_ en 0.9 '1!lrt ~:;Il'-I-I---· _I. h~ I !. : '-:-~~~--.~ .' 1 4f Ii '!t-. z 0.8 .1 11~ Ii Iii: i .:.:: :'" -: . J+ ~ 'I ;"~' H~ tll. ~ -"F-i-=. ~l t I ~J!, ~. 1:1-=-W Cf) : I:: I: . : I ..... . 1 : 1 .. r--. .Kl.~ ., n.. .., . . . == :1=:= -= l-~O.1 ri·1 tf;E11~1~1!.;~:::"-~:· 1'~~ I I ~ ·rl;::. "I>,,,-.. i~ .. ~ +t~ fi ~ 1~·"~~fI '§:'-C:: Z .r! W' I' I'" " 11· I .. 1l::~1 ~t-fl. "1 "'1 _.. - ---lJ 06 ~ :: <11:.:.r.:.:'-:~·'i -: .-I~ i"\-b;-~f,~'~' r : :~. =t '=,.:::..: -z· r I'" I' .. -.. . I'" I~ 1--. ~p:I. 'I"'" . ~f,.." ,::-.-.' ;., :':.. • • : I ., ~~~ • : ': ... _ ~ o.~ ~ I:::t:! .:\: -:-1:-1-1--. ~ l-~ ! I ~. ~I---kt~ . .J. , Ii 11 ~ '=-'f--I- ' I" I. .,.... . . ,. , " j:. . ~ Il . " t'N: _. .-1- I 1''-'···· ... --+.. I I I' I I k~ ~ [11 .. ~ I' I ., .... -.. -'~h' 't-• •.. \', ,-' --. "'1 ~ . I" . ,K '. ! I~ It I u...:. . -1--,. fl' 1 r· , : I :r-.-I-I--. !---t-.:... - - . . I~ 1'1fT . ~!. __ ... 0." ': " . :1· : ". . . ,I . _._ ........ •. . .: t: .~ ._ -= . fl:!! I:" .=!:::t::"=. : :. . "I·:· I 1= -;:~:= -~ ~ ·f : II, Itm ': L ~f:,;;--" I I " . -.. -. . . t-.1 • I L: '03 11 tl!l; '1:!II':,,;,:·:r7~~·~·:·1 I II -·1 I =--1-.. :: .. ~-:i-~"f I··.t ;;"lli'r:;'~~ .I~ . " I' I .. -.. '" I' , .., . ·t I'} I ." 1----, . ... . .'. .. ,.... _. . ",'-.. .~ . . '11' ;',:. I III 1;'1 III j'l :. -_. '. :t IL 'liF'1!tti-:t"s:.:-•• -:-•• ·I-.... ~ -:.', 1-' -r · jt ,. . =I+! '. i" "'\'1"\'1 .' . 1ll'i; III!'I' I . ,U ':: U I;:~ '.I~r-.:;~ 02 H I I 'I ' [ . . ' 1+\ .I .J. 1 I--I-, if . . . I . I' .' .. '. ,. 1 I I I. . .. , • . . . . . -~ ~ ~ Inl I djJjf II~I !Ii III! I [1 Ii -u~,_"Jlj Jh Ih d' I ~ t'S~ :~ ~ r,o . 20 :"0 10 '5'0 I . ·2 !.. . ~ 6 7 8 ') 10 • t I _ • MINUTES. ~ HOURS DURATION: I I I I I I I. I I I I I I I I I I I URBAN AREAS TIME OF FLOW OVERLAND' CUR'VES ~ ... : ..... -----.--~ )r" .... . ." iJtv ~ . . 70 c I t; ... II. .* 60 ... u Z ~ '" 0 50 40 3b EXAt-/l ?LE.. : GiVE.N: LE.l\IGTrl OF FLo",", <::. 400 FT .. S 1-0PE:..::. 1.0 Cfo COE.Fflc.,.;E...NT oF-R.v~OFF c.. -= ~70 'R.~AD: OVE:.KLAND PLDWrlmE,.::. 15 M,NU,E.5 86 A~3 ... ." ... .... :::l Z. ~ ~ w ~ i= I· I, I I ·1 I I I I I I I I. .~ I I' I I I I I 1= .... I ow -= I .... I-~ 3C ... a ,I x t-... ... Q I I 0.15 IV-39 .0 e GflATE CffNI~~ BAI'Q 6 • P-/-1/S-04 o.e P-.·118 Q9 :s ~ P-'-1I8 0.6J -4 Rw.icu/j.,.c 0.8 • Curved voo. 0.3~ 30· lill -bor 0.304 :3 • Tulld O.B 1--:---I-I-t-tt--t--+-t--:-'"""'".7"71~~;JL::="'-I-+-t---l--1 O.6/-.-----:~:t..--t--t-t--b~~17~~~~~-L-..-L~~L.J--1 0.:1 t---~,~~--t---v--4~:,...?;A4~:::..."...~ CURB , 0.041-----T w 1 t-L--f. A = CLEAR 0Pffi1N<i AREA 'p = 2W + L .(WITH ~BJ .p "2{W+L) (WITHOUT CURB) 2 8 10 20 :30 040 ~O 60 '.. 60 100 CHART 11. Grate inlet capaCity in sump conditions. Figure IV-20. Grate inlet capacity in sump conditions (Reference IV-4, p. 71) 11-5-5 L(. mE AMP ffllV It 0 cfs 56 0ft) GR.ATe 8Lo£t.IlGE· GIlA TIi -sPAce b.S NAN 0 ~ . 11 .. I,' I I I I I I I I I I I I I I I I. I I I I-IANDBOOIC OF I-IYDRAULICS jor the Solution. oj IIytirouJic Engineering Problel12S T':lhJc! 7-1·1. \':du('$ of /{' for Cir('ular Challf)l'ls ill the ForniliJ:l. r' ("} _. \ .. 11.... , .. ~ -(,I,.'JS./'·~ 1l D = d&ptb of \\'utcr d = IJia"lI:ll~r or Ch3unel < ~ I 00 .01 .02 ,O~ .0-1 .05 .OG .07 .08 .09 tl . ---------------..:..----- .0 ,.00007 .• 0003 J .00074 .00138 .OO~~2 .00328,.00-1 ~5 oOO""TOO77 " • J "oo·'rU8.'oQ,,, .0167 .0195 .. 0225' .0257 .02!11 I .0327 .O:!foG .~ .().jOG .04·18 .OH12 .0537 .0585 .0634 .()i,SG· .0;38 .07!I:i· .OS·HI .3 .Q!107 JJ!lGG • ] 027 ,J089 .11S3-~J 218 :12S.J .1352 .1420 .1·l!IO A .1561 .lC.33 .]105 .177!> .1854 .1 !)!!!> .2005 .2082 .21 GO .2:!38 I . .5 .232 .239 .2H .!!55 .2G3 .271 .2i!1 :.!S7 .2f15 .:J()3 .Co ..3 J I .:U!) .327 .335 .:I·J3 .350 .:J58 .3liG .373 .:;30 .7 .31)8 .3t15 .-J II~ .·IO!) .·IUi •. J:!:? .·1 :!!I .·1:15 .·1·11 ..1·17 .S ."~3 .-158 .41;3 .·Hoa A73 .477 ,481 A85 .-J 88 .·HI} .!I A!H .-:I!,G ,497 A!J8 .·J!J8 ..J!>8 . .J!H.i .·m·} ..t~!1 ,483 " 1.0 041" .. 1 I Table 7-4. 'For Determining t.he Area. a of the Cross Section of a Circular Conduit Flowing P:lrl. Full'- Let. d('J>ll~_~~.~~~ = dE. and C .. = the tabulat.:d ,·alllc. Then a = Cull!. d;;J. meler or ch:ln ncl - D .0, .OS .00 -.00 .01 .02 .03 .04 .0.'5 .Of> J ' ~ ----------------- .0 .00001 .0013 .003; .OOt;!> .0105 .014; .019:?' .0:?·12 .O~!H .1)350 .1 .0409 .lH70 .053·1 .Ol;t)O , .O~.HS .(),30 .08111 • 0835 1 .tWol .103!l ., .1118 .1 J9!) .1281 .1:Jli5 .I'Htl . 15:J5 1'-')'j .1711 .] gOlJ .1801) .-• >-'1 .3 .1982 .2074 .21 ,>; .2260 .~35·')1 .24501 ·')r--lf .21}!1 • 27:3'J .:lS31i .-.) '\ .-l .2934 .3032 .3130 .3!!29 ·.3328 .3-125 .35:!-: .3G2-: .3,2, ,3S:!'; .5, .393 .~OJ .413 .423 .433 .443 A.53 ,41)2 ,4;2 .-182 .6 .492 .502 .512 .521 . .531 .~40 .550 .550 •• ')()9 .578 .1 .58, .596 .605 .614 .62.1 .632 .tHO .1>-10 .1~7 .,,(1) .8 .6,4 .681 .68!) .6!l7 .104 .712 .il!) .,2.5 .732 .i38 .9 I .745 .750 .756 .70l .766 .771 .775 .''j'O .782 .784 A-5 j., '.i s ~m rx c -0 00 0::1 -=Z ~" mJ: :t>-< 8~ 00 »r zO ~Q rrlm »x A:C :1:_ om ~=i m ",,'-4 '-' I,e,!, it "1"";' 110 ~ \ g',flII,. ;5,);". ,';" -' ~ ')'.1, ., ! " '1 :'/ , ,_ .. { '[ \ ~ 7":.0: ! 'f .. , ,:1 '''''': " • ft~' ~5.., 'I • "_,i '~!,.~ -. , !t . ) . " ~""::"""::'-'::""':::"-~~l " L .... ~~~~ ."--- -r AMARAC}< AVENUE L01' '-13 P ALJSADES, BJ.,OOK· G MAP NO, -1'1.41 k~ 1 , ----~-- i' ~i ... -l., ~ -~ .-• " .-. ----~ -•• !1J ,fXlST. 12'_W/R' AlA/II PBI. 1~f':5_ ----------------.----~I----. 382-HYDRO-EX,dwg 1-8-04 8:01:54 om EST t 1 .L.L'''UU~ I A .:oJ-. . • . ~~l '" .. :, !S:I £1lSl: HWiif -1 i:i r / / / ./ / I / t t jL-""'--4; / I / " "t t / / / / t I' t / t l / t ,r ,r ,,/i _h ____ • __ _ l P ALlSJ\DES, BLOCK G '.~,/ , \ijf _,_,.f _ " ~", •• _ MAP' NO. 1147' ,S·/ '1 0 '--: 0' . :[":,, , .. ; ~i . !I',;-.~' I, " " Ia43!ftJtI'rI 13iJxs' ., . J" : • ?> . 'If"., 1 r:; :Ji J~' ........ ___ ~ -____ I;:) ~QU"ft: i?;:rAfMH..Jl~ WtiJ ._~_·.,r:i 1 '0-all ~;! ~~ -- LEGEND." PROECT BOI/HOARY BASIN Na I. . BASIN lI11IT I 'I' FLOW IJIR£cTKiN . -! ' I I \ ;:. s't'c"c1 WA,; ., -~ v-~" ' . r V ,~-, --, ...... OCl~· ,-,OO=O=OCOCll:::;O= J i' ~: -.'~~!;~~~ L ~::'0t FEl~(L __ 0 ---L ~ .. ~~l -~~i ~ ~ " ~. ;; ~! ' . ~; ci S? :, 13,1 ~== 'I ~. /:: rtJ}";,1 k.' ~' ' .. ~ I· 'O? " (IJ ~ OJ'-, O"i' !,'f.)-ll'-. .... IO'r J-. ~Q oiE:z: -l'Q <i;'1i, m<i; ':::J2: <i; Ii, -, ", '" l:a ~. ~ 0. Q ~ P: : \ 1 L '( '8 · ...... -&5r Pi·.IIEJ/Er: ..... Q;06AC CE!,. MAf NO: 3713 PABCfL 1 l . I, .: '(;.l.a;, ~---- C 0.11 AC ~' )Ql; ,,~I c :'.'4,!! ~~----,.-,- 't ;.. U) ... f' l ..: ItiJ.S1 c -:1~ D, o.n~_A.~ -'.'. L ___ ------- ""N'~'8'J ,-, ?.1 ~ -. , .~. f -/",' ~"J. I F I I'" 'H :';" ? -"2 ~---l'--~ . . " --, ~, $". " ; , ~ , ) ,·~//~/////////Q,~/~.fl'/..LW~~> ~ :?& t , --2 ---" j ai i . ' Jt-jjis-.M --:: Z..: :::.:.,--:.:*::~ }s v ~--~;~~ F-~: I , ~'-""..::"'-.. ~~ ; ..... ~~ .. -' 11.1 t.-tJflo"""J-. . J •• i.57.J' t ~;~ ,\" ;,', -.,l •• ;p::~ .!.':.:. '5. <;-,--: ;:,t -;;:. ./" e' • __ ~ ~ .$ , " ~ " ~ .... ~.t,)-'7~~":.' -::,' .', 3J -? ......... ~ of,' ..:'~ " ·',7;;. ~ , < :?-~ _ ";.:. :.:s....x.' _.:x-~ . -r :--~ ~~ .. ' ~ . ~~-~ ;} PROPOSED HYDROLOGY EXHIBIT VIGILUCCI'S SEAFOOD AND STEAKHOUSE J '" '" :' .t ~:J~, :.;.~ ~ . . '8 ! . ll!! '1' jfi 1 ~ .11 ._~.=-£"S1!c· ">Ii , ' ;---.--_. r --_. u" L~ __ :I~~~'. ....-l--~. ~-" ~ ~ " => "' ... ,- .~ . . .:..-'_!...~..'t':;' /!~-<."':'--,, . ".~ : ''::' s ':. .~+_ .. _ .. F:/ __ .~~~~!~ __ _ U! ::) Z' m > « 'v" -.... o « IT: « "5: ~ « r CAUTION 11: stISIM: G:04S IIAN ~ ;,§ ~ ~ ~. ... .1. EXM:T LDCA1IOII ~ tDml.4CR:R 10 LDCA'IE ' I'fItJl 10 ctIISlIlUCJIaI. " ....... _-.. - ~---A ---- --0-6U~-e,-.. 2..P PARTNERS 'Planning and Engineering 15938 Bernardo Center Drive San Diego, CA. 92127 Ph.. (858) 376-3444 Fax: (858) 376-3555 Iii g ~ ,;; ., '" .. o ,J, .!. ~ i :J: ~ I I I ATTACHMENT D I APPENDIX 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 I I I I I I ANNUAL COMPLIANCE CERTIFICATION- Construction Certification for the Period of: --------------------------- Construction Project ______________________________________________ _ "Based upon the data received for the monitoring program outlined in the Stonn 'Water Management Plan (SWMP) and an evaluation of the operation of the control measures implemented on the project site, I certify that the construction activity is in compliance with Order No. 2001-01, National Pollutant Discharge Elimination System General Permit No. CA50108758, and the provisions of this SWMP. The field inspections indicate thatthe measures identifies in the SWMP implemented in accordance with the tenns ofthe penni!. I certify that the SWMP implemented for this construction project has been effective." " I certify under penalty of law that this document and all attachments were prepared under my direction or supervision in accordance with a system designed to assure that qualifies personnel properly gather and evaluate the infonnation submitted. Based on my inquiry of the pers~n or persons who manage the system or those persons directly responsible for gathering the infonnation, the infonnation submitted is, to the best of my knowledge and belief, true, accurate, and complete. I am aware that there are significant penalties for submitting false infonnation, including the possibility of fine and imprisonment for knowing : violations" Printed Name: ____________________________________________________ _ Signature: ______________________________________________________ __ Title: ----------------------------------------------------------- Company: __________________________________________________ ~ __ Dme: ________________________________________________________ ~_ ------------------- MONITORING RECORD RECOMMENDATIONS INSPECTION DATE OF OBSERVATIONS/ FORREPAIRI DATE OF DATE STORM INSPECTOR COMMENTS MAINTENANCE MAINTENANCE : -- - - - Signed By:---,'_-_____________ ~---Date: __________ ,-- I I I I I I I I I I I I I I I I. I I I All amendments made to this SWMP shall be documented in this'table. DATE: BY: , . DESCRIPTION , I ·1 I I I I I .1 I I I I I I I I I I I CONTACT PERSON PHONE NUMBER , , .. ALTERNATE A.LTERNATE PHONE CONTACT PHONE NUMBER PERSON NUMBER , I .. , ,