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HomeMy WebLinkAbout; Olivenhain Rd & Rancho Santa Fe RD SWMP; Olivenhain Rd & Rancho Santa Fe RD SWMP; 2006-02-01STORM WATER MANAGEMENT PLAN - WIDENING OF OLIVENHAIN ROAD & RANCHO SANTA FE ROAD Olivenhain Municipal Water District Boyle Engineering Corporation Project Manager Michael R. Crull, PE Boyle Staff Barbara Bartholomae SD-O01-O21-02 February 2006 7807 Convoy Court, Suite 200 San Diego, CA 92111 Olivenhain Municipal Water District Olivenhain Road/Rancho Santa Fe Road Widening Storm Water Management Plan - February 2006 Table of Contents Introduction 2 1.0 Project Description 2 1.1 Hydrologic Unit Contribution 2 1.2 Beneficial Uses 3 1.2.1 Coastal Waters 4 1.2.2 Groundwater 4 2.0 CHARACTERIZATION OF PROJECT RUNOFF 4 2.1 Post-Construction Expected Discharges 4 2.2 Soil Characteristics 5 3.0 MmOATION MEASURES TO PROTECT WATER QUALITY 5 3.1 Construction BMPs 5 3.2 Post Construction BMPs 5 4.0 Operation and Maintenance Program 6 5.0 Fiscal Resources 6 Attachment A - Location Map Attachment B - Project Plans Attachment C - Inlet Filter Basket Attachment D - Drainage Report Attachment E - Storm Water Requirements Applicability Checklist I ^ , - • Olivenhain Municipal Water District I n t rO CI U ct l O n aivenhaln Road/Rancho Santa Fe Road Widening Storm Water Management Plan - February 2006 A Storm water Management Plan (SWMP) for the OHvenhain Municipal Water District project to widen both Olivenhain Road and Rancho Santa Fe Road is required under the Califomia Regional Water Quality Control Board, San Diego Region, Order No. 2001-01. The purpose of this SWMP is to address "* water quality impacts from the proposed road improvement project. Best Management Practices (BMPs) will be utilized to provide a long-term solution to water quality concerns. This SWMP is also intended to ** ensure the effectiveness of the BMPs through proper maintenance that is based on long-term fiscal *" planning. The SWMP also satisfies City of Carlsbad Water Quality Technical Report requirements per ^ the City's Urban Water Management Plan and is subject to revisions as needed. m 1.0 Project Description *" This project will widen Olivenhain Road and Rancho Santa Fe Road in the cities of Carlsbad and Encinitas (see Attachment A - Location Map). The project will widen Olivenhain Road in the City of Encinitas for 333 feet along the road's southerly eastbound half to provide a pavement width of 46 feet for three eastboimd lanes. Where GHvenhain Road continues in the City of Carisbad, 1,082 feet ofthe roadway widening will continue and 474 feet when the road becomes Rancho Santa Fe Road. Where Rancho Santa Fe Road turns to the south, improvements will include 505 feet of roadway widening. Other associated improvements include storm drains, signing, and striping on both Olivenhain Road and ^ Rancho Santa Fe Road. *• Construction of these roadways will require some grading, the removal of existing improvements, ^ asphalt concrete (a.c.) pavement, a.c. berms, curb, gutter and sidewalk. *• The medians along Olivenhain Road and Rancho Santa Fe Road within the City of Carlsbad will be enhanced with a combination of special paving and landscaping per City of Carlsbad Street Median Standards. An 8' by 20' planter area will be introduced into the median wherever the median width is 12 feet wide or greater. The planter areas will repeat at seventy feet on center for as long as the median remains wide enough. Each planter area will contain one 24" box tree, 24 one-gallon shrubs and a 2" layer of bark mulch throughout. A root barrier will be utilized at the perimeter of" the planter. An automatic irrigation system will provide water to the plant material. " 1.1 IHydrologic Unit Contribution ** The Project is located in the Encinitas Creek watershed which drains to Batiquitos Lagoon, and is * Regional Water Quality Control Board, San Diego Region Hydrologic Unit No. 904.51. The project drains southerly towards Encinitas Creek which then flows westerly under El Camino Real that is located approximately 0.8 miles west ofthe project. Encinitas Creek then turns northerly and crosses La Costa Avenue and flows into Batiquitos Lagoon which is approximately 1.5 miles from the site. ^ Batiquitos Lagoon then flows westerly and discharges into the Pacific Ocean, approximately 2.5 miles west of Encinitas Creek. m The proposed project will not significantly afler drainage patterns on the site. The storm water discharge points will not divert runoff from existing conditions. Furthermore, there will not be a substantial <m m Olivenhain Munic^l Water District Olivenhain Road/Rancho Santa Fe Road Widening Storm Water Management Ran - February 2006 increase to the amount of impervious area. Approximately 1.4 acres of open ground will be converted to road or sidewalk improvements, representing a change of 0.22% to the impervious area. 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. BIOL - Preservation of Biological Habitats of Special Significance: Includes uses of water that * support designated areas or habitats, such as established refuges, parks, sanctuaries, ecological reserves, or Areas of Special Biological Significance (ASBS), where the preservation or enhancement of natural resources requires special protection. EST - Estuarine Habitat: Includes uses of water that support estuarine ecosystems including, but not _ limited to, preservation or enhancement of estuarine habitats, vegetation, fish, shellfish, or wildlife (e.g., estuarine mammals, waterfowl, shorebirds). ^ The following area is designated Ecological Reserve by the Fish and Game Commission (Califomia Code of Regulations, Title 14, Section 630). A legal description ofthe boundaries of the ecological reserve is on file at the Califomia Department of Fish and Game headquarters, 1416 Ninth Street, « Sacramento: • Batiquitos Lagoon Ecological Reserve, San Diego County •wm MAR - Marine Habitat: Includes uses of water that support 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). MIGR - Migration of Aquatic Organisms: Includes uses of water that support habitats necessary for migration, acclimatization between fresh and salt water, or other temporary activities by aquatic — organisms, such as anadromous fish. ^ RARE - Rare, Threatened, or Endangered Species: Includes uses of water ttiat support habitats necessary, at least in part, for the survival and successful maintenance of, plant ox animal species established under state or federal law as rare, threatened or endangered. ^ RECl - Contact Recreation: Includes uses of water for recreational activities involving body contact with water, where ingestion of water is reasonably possible. These uses include, fcut are not limited to, swimming, wading, water-skiing, skin and SCUBA diving, surfing, white water activities, fishing, or use 4 of natural hot springs, KEC2 - Non-Contact Recreation: Includes the uses of water for recreational inA'olving 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. 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. Olivenhain Municipal Water District Olivenhain Road/Rancho Santa Fe Road Widening Storm Water Management Plan - February 2006 ^ 1.2.1 Coastal Waters Coastal Surface waters have the following beneficial uses as shown on Table 1.1 1141 Fable 1.1 Beneficial Uses or Coasta Waters 'm m '•m Hydrologic Unit Number RECl REC2 BIOL EST WILD RARE MAR MIGR m 904.51 X X X X X X x x 1.2.2 Groundwater No beneficial uses for groundwater are hsted for the project area, HSA 904.51, which drains to Encinitas Creek. 2.0 CHARACTERIZATION OF PROJECT RUNOFF According to the Califomia 2002 303d list published by the San Diego Regional Water Quality Control Board, there are no impaired water bodies that are associated with this project. • The project location and watersheds have been compared to the current published 303d fist of impaired water bodies and the nearest impaired water body is the Pacific Ocean Shoreline at Moonlight State Beach, impaired by bacteria. • This water body is impaired and is located approximately 2.9 miles south of the outlet of Batiquitos Lagoon. 2.1 Post-Construction Expected Discharges There is no sampling data available for the existing site condition. In addition, the project is not expected to generate significant amounts of non-visible pollutants. However, the following constituents are commonly found on similar developments and could affect water quality: • Sediments • Nutrients • Heavy Metals • Organic Compounds (including petroleum hydrocarbons) • Trash & Debris • Oxygen Demanding Substances • Oil & Grease While these pollutants are typical from roadways, it is important to note that this is a roadway widening project. The majority (88%) ofthe roadway is existing, so the additional pollutaii_t loading is minimal. Olivenhain Municipal Water District Olivenhain Road/Rancho Santa Fe Road Widening Storm Water Management Plan - February 2006 » 2.2 Soil Characteristics The project area consists of soil group D which normally has an infiltration rates less than 0.5 inches per '"I hour. m 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 A detailed description ofthe construction BMPs have been included on the Project's Erosion Control w Plans that are part of the Project's construction documents and are included in Attachment B. These ^ temporary BMPs include the following: • Fiber Rolls • Gravel Bag Berms «• • Street Sweeping and Vacuuming • Storm Drain Inlet Protection ^ • Material Delivery and Storage • Stockpile Management ^ • Spill Prevention and Control • Solid Waste Management ^ • Concrete Waste Management • Stabilized Construction Entrance/Exit m • Water Conservation Practices • Paving and Grinding Operations ™ • Vehicle and Equipment Maintenance • Riprap Energy Dissipation Devices Construction BMPs for this project will be selected, constructed, and maintained to comply with all applicable ordinances and guidance documents. •mm ^ 3.2 Post Construction BMPs Storm water runoff conveyed through the City of Carlsbad is directed through a vegetated channel that empties into an existing vegetated detention basin, located within the City of Carlsbad. The channel and detention basin act as the treatment control BMP for the minor amoimt of increased runoff generated by the road widening project in the City of Carlsbad. In addition, revegetation of landscaped slopes is ^ included in the project, where possible. Riprap will be placed at storm drain outfalls to reduce velocities and inlets will include storm drain markers. m Storm water mnoff conveyed through the City of Encinitas enters a creek system downstream ofthe City of Carlsbad's detention basin. Therefore, post constmction treatment control BMPs within the City * of Encinitas include equipping the new storm drain inlets with Inlet Filter Baskets (Attachment C). All ^ flow entering the inlets shall be diverted into the baskets. These baskets are designed to capture high levels of trash and litter, grass and foliage, sediments, hydrocarbons, grease and oil. M m m Olivenhain Munic^l Water District Olivenhain Road/Rancho Santa Fe Road Widening Storm Water Management Plan - Febnjary 2006 Concrete stamping or stenciling will be provided on all storm water conveyance system inlets and catch basins within the project area with prohibitive language satisfactory to the City Engineer. 4.0 Operation and Maintenance Program The operation and maintenance requirements for the Inlet Filter Baskets are included in Attachment C. They shall be maintained in accordance with the manufacturer's recommendations. 5.0 Fiscal Resources The City of Encinitas will maintain the Inlet Filter Baskets. Olivenhain Municipal Water District Olivenhain Road/Rancho Santa Fe Road Widening Storm Water Management Plan - February 2006 Attachment A - Location Map m m Olivenhain Municipal Water District aivenhaln Road/Rancho Santa Fe Road Widening Storm Water Management Ran - Febmary 2006 LOCATION MAP NIS Olivenhain Municipal Water District Olivenhain Road/Rancho Santa Fe Road Widening Storm Water Management Plan - February 2006 Attachment B - Project Plans -I- O CENTERLINE DATA LOS PINGS QRCLE NO. A OR BEARING RADMS LENGTH REMARKS LOS PINGS QRCLE 1 N 8T79'55" E -633.83" -1 •5 sr"-- \ ''-^ E)t R/* n- -----1 •5 sr"-- \ ''-^ E)t R/* n-• CURB DATA 1 •5 sr"-- \ ''-^ E)t R/* n-NO. A OR BEARING RADIUS LENGTH REMARKS 1 •5 sr"-- \ ''-^ E)t R/* n- 1 N 89-»"55" E 292.80 6- TYPE 'G' C 4 C • OUVENHAtN ROAD 34+00 2 , — 1 — -1 OUVENHAtN ROAD 34+00 2 , • IF CROSS SLOPE OF ROAD IS GREATER THAN O.QX SLOPE OF GUTTER SHALL MATCH CROSS SLOPE OF ROAD {SEE PLANS FOR LOCATION OF GUTTER SLOPE TRANSITION), DISPOSITION NOTES: PROTECT IN PLACE /$\ ADJUST TO GRAM BY OTHERS /}\ RELOCATE BY OTHERS ^ ADJUST TO GRADE A\ TO BE ROIOffD ^RELOCATE EX R/W mnmnmmvna ewutmnrmi 7807 CONVOY COURT, SUITE 200 SAN DIEGO, CA 92111 (858)268-8080 . _ DWALL . DISSIPATDR TYPE 1 L -l?, W =10" ROCK CLASSIFICATION ROCK THICKNESS - 32' FILTER THCKNESS: USE 1'-0* SAND ft ROCK WTH lj" PROCESSED MISC. BASE +4% +2% ; o; ^133- -137- TCRT -133- FIELD VERIFY EXISTING SERVICE LATERALS ft RECONNECT AS REQUIRED HQT£ SEE SHEET 16 FOR STORM ORAM PROFILES SEE SHEET 13 FOR DWY IMPROVEMENTS anr OF ENQNITAS IMPROVEMENTS WITHIN QTY OF ENQNITAS APPROVED BY: OTl' EHCWEER F»ETER COM-ROBLES "AS BUILT' ENGINEER Cf WORK REVISION DESCRIPTION OTHER APPROVM. •rr APPROVAL SHEET 4 CITY OF CARLSBAD ENGINEERING DEPARTMENT SHEETS 57 ROADWAY IMPROVEMENT PLAN AND PROFILE FOR THE: WIDENING OF OLIVENHAIN ROAD & RANCHO SANTA FE ROAD STA 36+79.25 to 40+10,06 APPROVED WLUAM E. PLUMMER PE: 2B176 EKP: Q3/3I/Q6 DEPUTY CITV ENGINEER DATE DWN BY' CHKD BV: RVWD BY: PROJECT NO 3860-1 DRAMNG NO 399-1 OWG H.\OOI\iim«ilwp\021-00\CaJ\PlanMt\5hl 04 - olvi. rd p * pd«g USEFf rIecluM (WTI Hor 01, 3006 I048(im KREFS baslroad Olivenhoiir Rood SE OLVN Profitas Curti *: CL OL"* Proliles Curb 4 a Mjllofs border twrrtei.logo Encinitus Sig Prolile grid ioaoo; 50.06" -0.42X 150.00' VC PVI STA - 42+50 PVIi EL£V j_ AM a RQTAft>lj-|:QtlvAHlliM-feua ': j. CQjiD 70.42g . 150.M)'"VC ; PVI STA - 42+50 fW. El£V-r- 134.B&- I -T -•; : T I PRORLE SCALES HOBZ: T - 4ff VERT: r - 4' itt> NEW R/W DEDCATEO TO THE QTY OF CARLSBAD PER SLURRY SEAL BETIHEEN LEFT MEDIAN CURB ft NLY GUTTER CAUTION - 45 HIGH PRESSURE GAS SDGE STANDBY REQ'D CALL 1-800-227-2600 48 HRS BEFORE EXCAVATING 49 • -jr-_zt- - LMTS V^^R^WG. OUVENHAIN ROAD rccnramnDn 7807 CONVOY COURT, SUITE 200 SAN DIEGO, CA 92111 (358)268-3080 NOTE: SEE SHEET 16 FDR STORM DRAIN PROFILES- EX R/W TO' BE REUNOUISHED , -JQWDOSTlHrTENCE (BY OTHESS) O CENTERLINE DATA HO. A OR BEARING RAOtUS LENGTH REMARKS 1 N 8r29'55" E -79.45' - 2 a - 3ff4I'M" 1200.00' 81049" - ----- • CURB DATA NO OR BEARING RADIUS LENGTH REMARKS 1 A = 33*49'24' 1246.00' 734.45 6" TYPE "G" C ft G • 2 S 52"36"10" W -5.09' 6"" TYPE "G"" C ft G • 3 A - 04"34'45-1460.00' 118.29" 6"" TYPE "G"" C ft G • DISPOSITION NOTES: * ^RETAINING WALL NO. 3 ' V SEE SHEET 20 IF CROSS SLOPE OF aiVENHAIN ROAD IS GREATER THAN O.OX SLOPE OF GUTTER TO MATCH CROSS SLOPE Of OUVENHAIN ROAD. (SEE PLANS FOR LOCATION OF GUTTER SLOPE TRANSITION). /\ PROTECT IN PLACE /2\ ADJUST TO GRADE BY OTHERS /\ RELOCATE BY OTHERS A, ADJUST TO GRADE ^ TO BE REMOra RELOCATE 40 20 0 40 60 120 "AS BUILf REVIEWED BY: REVISION DESCRIPTION OTHER flPPROVSL OTY APPROVAL CITY OF CARLSBAD ENGINEERING DEPARTMENT SHEETS 57 ROADWAY IMPROVEMENT PLAN AND PROFILE FOR THE: WIDENING OF OLIVENHAIN ROAD & RANCHO SANTA FE ROAD STA 40+10.06 lo 49+50 00 APPROVED. MLUAU E. PLUMMER PE: 2SI76 EXP. 05/31/06 DEPUTY CITy ENGINEER DATE PROJECT NO 3860-1 DRAWING NO 399-1 DWG H-\OO1\om.(l«p\021-0O\CadSPlans»t\sht 05 - olvn rd p * p.il«g USER: rieduM [»TE Mor 01, 2006 lO.Mom KHEFS: baslraod Olnenhaio Road SE OLW Profiles Cjrb ii CL OL»l Profilfs Curt * a T 1 + 2 • • in « u -120-^ .170.00' VC -f- •: PMiSTA ^ 6+6a90-- PMiQiV >._i20l64:— -^3.40% ! G2 ^-118^ 5+00 •i- 4t-; ELJEVI- S 241.13i NORTHEAST CURB RETURN HORIZ: 1' - 4 CURB)S) 12 m • _ n 2! . t I I j-1 _EVi STA -: iiri-w 6+00 7+00 NORTHEAST CURB RETURN (INSIDE CURB) Q> HORIZ: ^•-W VERT: r - 4' : 60.06" VC 12+50 116.00" ^S-1^6t- IITCIU I -112- I i—]— [3-- G^TTiy^^AilSI ^ sixjtHWSTlCSRe' RETURN {jj^l I'-' _gV1 STA =: 11+^" -PM -ELEV »417-.-35 60.00'^ ^WE;^; 1Z+50: ••HI 5.-72- it lilt n et 0± in _r112- O CENTERLINE DATA HO A OR SEARING RADIUS LENGTH REMARKS 1 A" 0*1tOS' 300,00" 23.31" -2 N 5r36'52" W -23.61" -3 A- si-si'tr 675.00" 375,26" -4 N t9'44'35" W -313.82" - lb ih PROFILE SCALES HOBZ: r - «• «RT: r - 04130 iSOU 1^ lb 1^ ife dt22- -123" • CURB DATA NO A OR BEARING RADIUS LENGTH REMARKS 1 A > 9B-1d'05' 45.00" 75.65" 6" rffE "G" C ft G 2 A - 20-20"28-641.00" 22757" 6' TYPE "G- C 4 G 3 N l9-44"35' W -5274" 6' TYPE "G" C 4 G 4 A - t0714"28" 35,M' 65,51' 6" TYPE "G" C ft G 5 A - 72-45"32" 35.00 44.45' 6" TYPE -G" C ft G 6 N 19'09'25'' W -52,24' 6'" TYPE 'G' C ft G 7 A " 02'24"3I" 800.M' 3183' 6'" TYPE 'G' C ft G 8 N 2r33'56" W -219,32' 6* TYPE 'G' C ft G 9 N 2r42'5r * -7270" 6* TYPE -G- C ft G 10 A = 6I'05'59' 203,00" 216.48 6* TYPE -G" C ft G 11 A = 11-03'15* 667.00" ~l2a69" MX MEDIAN CURB W/GUTTER 12 A = 83-30'30-25.00" 36.44" MX MEDIAN CURB W/GUTTER 13 A = 32-49'53" 221.00" 126.64" MEDIAN CURB 14 AN22-42"5TW -625S' MEDIAN CURB 15 A - 168'38"43' 4.00" 11.77" MEDIAN CURB 16 A » 15r43'55' 4.00' 1054" MEDIAN CURB CAUTION - SLURRY SEAL BETHCEN SAHKUT UNE ft LEn GUTTER -.UMIT5-OF-W0RK 4" HIGH PRESSURE GAS SOGE STANOeY REOD CALL 1-800-227-2600 48 HRS BEFORE EXCAVATING 7807 CONVOY COURT, SUITE 200 SAN DIEGO, CA 921 1 1 (358)268-8080 NOTE: SEE SHEET 16 FOR STORM DRAIN PROFILES. 14+87.19 END aURRY SEAL - BET>IEEN SAWCUT LINE ft LEFT GUTTER 1 --- •-:z&3M FE ROAD 16t00 i SANTA -o -14+87.19 15+00 2'' ^'^ UNE / WORK OUTSIDE THE ' R' Rl R/* AliOHED BY TGHT OF ENTRY FORM NEW R/W DEDICATED TO THE CITY OF CARLSBAD PER DOC REC . TRAFFIC SIGNAL MAINTENANCE EASEMENT DEDICATED TO THE CITY CF CARLSBAD PER DOC REC DISPOSITION NOTES: AK PROTECT IN PUCE A\ ADJUST TO GRADE BY OTHERS RELOCATE BY OTHERS /\ ADJUST TO GRADE A\ TO BE REMOVED /S\ RELOCATE :CYCI£D WATER PIPELINE TaBE jCONSTRUCTED PER^WD PROJECT NOTE: FOR CURB RETURNS 5 ft 6 SEE SHEET 10 40 20 0 40 SO ENGINEER <X WRU REVISION DESCRIPTION OTHER APPROVAL an APPROvdj. CITY OF CARLSBAD ENGINEERING DEPARTMENT SHEETS 57 ROADWAY IMPROVEMENT PLAN AND PROFILE FOR THE: WIDENING OF OLIVENHAIN ROAD & RANCHO SANTA FE ROAD STA 9-f65.3I to 14-1-87 17 APPROVED. MLUAM E. PLUMMER PE: 23176 EXP: 03/31/06 DEPUTy CITY ENGINEER OATE DWJ BY: M'« CHKD BY: MJW RVWD BY: - PROJECT NO 3860-1 DRAWING NO 399-1 DWG: H\OOl\oni-d.p\021-00\Cad\Planset\5hl 0' - ret nl p 4 ptt.^ USER. FIKIUM DATE. Ugr 01, 20O6 lOSDam KfiEFS boslrood RSF Pfol^es Cgrb * CL South P5F Profiles Curb & CL South RSF Profiles Curt * CL SouUi OLVH Cwb Retum Profiles RSr Profiles Curt Return South RSF Pfofiles Curb Return South OIVN Curb Return Profiles border 4 RECYCLED HWTER LEGEND DESCRIPTION nBER ROLL GRAVEL BAG CHECK DAM GRAVEL BAG INLET PROTECTION (5UUP) GRAVEL BAG INLET PROTECTION (GRADE) INLET PROTECTION SEE SHEET 22 MATCH UNE 11+00 RSFD 7807 CONVOY COURT, SUITE 200 SAN DIEGO, CA 92111 (858)268-8080 40 20 40 80 120 CITY OF ENCINITAS IMPROVEMENTS WTHIN QTY OF ENONITAS APPROX BY: OTY ENGINEER "AS BUILT' REVIEWED BY: ENGINEER OF W3RK REVISION DESCRIPTION OTWER APPROVAL CITY APPROVAL SHEET 23 CITY OF CARLSBAD ENGINEERING DEPARTMENT SHEETS 57 EROSION CONTROL PLANS FOR THE WIDENING OF OLIVENHAIN ROAD & RANCHO SANTA FE ROAD STA 36+ 79.25 to 53+50.00 APPROVED MLUAM E. PLUMMER PE: 26176 EXP. 05/31/06 DEPUTY CITV ENGINEER DATE DWN BV- msEi CHKD BY: MJW.. RVWD BY: ^ PROJECT NO 3860-1 ORAMNG NO 399-1 DWG tl.\001\oni.d»fi\0Zi-0O\Ca(f\Plon5flt\shl 23 - "PC 01 il"g USES riecluse DAIE- Uur 01, 2006 10.57m XREFS baslrood bosllopo baslroad boaltopo border_logo border Encinito? Sig sS5 7807 CONVOY COURT, SUITE 200 5AN DIEGO, CA 921 1 1 (858)268-8080 LEGEND DESCRIPTION FIBER ROLL GRAVEL BAG CHECK DAM GRAVEL SAG INLET PROTECTION (SUMP) GRAVEL BAG INLET PROTECTION (GRADE) INLET PROTECTION RIPRAP SYMBOL 16+00 40 20 "AS BUILf EU SNEER OF WORK REVISION DESCRIPTION DWG H \001\on1-dwp\02l-00\Cod\Plan!et\aht 24 - «pc 02 d.g MTE Mor 0'. 20O6 10S7dm IREF5 boslrood tosltopo OmER APPROVAL SHEET 24 CITY OF CARLSBAD ENGINEERING DEPARTMENT SHEETS 57 EROSION CONTROL PLANS FOR THE" WIDENING OF OLIVENHAIN ROAD & RANCHO SANTA FE ROAD STA 53+50 DO to 58+39.50 APPROVED, WiaiAM E. PLUMMER PE: 2B176EXP. 03/31/06 DEPUTY CITl'ENGINEER DATE DWN BV- M?;R CHKD BY: MJW RVWD BV: - PROJECT NO 3860-1 DRAWING NO 399-1 tionier bo'^r_loqo EROSION CONTROL NOTES 1. (N CASE EMERGENCY WORK IS REOUIRED.C(MTACT XXXXXXXXXX AT (XXX) XXX-XXXX (PHONE NUMBER) 2. E0UIPMENTANDWORKERSFORCUERGENCYWORKSHAU.BE MADE AVAILABLE AT ALL TIMES DURING THE RAINY SEASON. ALL NECESSARY MAmRIALS SHALL BE STOCKPILED ON SITE AT CONVENIENT LOCAVONS TO FAOLITATE RAPID CONSTRUCVON OF TEMPORARY DEVICES MIEN RAIN IS EMINENT J. DEVICES SHOWN ON PLANS SHALL NOT BE MOVED OR MODIHED WITHOUT THE APPROVAL OF THE ENGINEERING INSPECTOR. 4. THE CONTRACTOR SHALL RESTORE ALL EROSION CONTROL DEVICES TO WORKING ORDER TO THE SAVSFACTION OF THE CITY ENQNEER AFTER EACH RUN-OFF PRCOUONG RAINFALL. 5. THE CONTRACTOR SHALL INSTALL ADDITIONAL EROSION CONTROL MEASURES AS MAY BE REQUIRED BY THE OTY ENGINEER DUE TO UNCOMPLETED GRADING OPERAVONS OR UNFORESEEN CIRCUMSTANCES HHJCH MAY ARISE. '.^f^»"ur,» 6- THE CONTRACTOR SHALL BE RESPONSIBLE AND SHALL TAKE NECESSARY PRCCAUVONS TO PREVENT PUBUC TRESPASS ONTO AREAS mERE IMPOUNDED WATERS CREATE A HAZARDOUS CONDIVON. 7. AU. EROSION CONTROL MEASURES PROVIDED PER THE APPROVED GRADING PLAN SHALL BE INCORPWATED HEREON. 8. GRADED AREAS AROUND THE PROJECT PERIMETER MUST DRAIN AWAY FROM THE FACE OF SLOPE AT THE CONO-USION OF EACH WORKING DAY. 9. ALL REMOVABLE PROTECTIVE DEVICES SHOm SHALL BE IN PLACE AT THE END OF EACH WORKING DAY WHEN THE FIVEJS) DAY RAIN PROBABILITY FORECAST EXCEEDS FWTr PERCENT (40X). SILT AND OTHER DEBRIS SHALL BE REMOVED AFTER EACH RAINFALL. 10. ALL GRAVEL BAGS SHALL BE BURLAP TYPE WITH 3/4 INCH MINIMUM AGCREGRATE. n. SHOULD GERMINATION OF HYDROSEEDED SLOPES FAIL TO PROVIDE EFFECTIVE COVERAGE OF GRADED SLOPES (90X COVERAGE) PRIOR TO NOVEMBER 15, THE SLOPES SHALL BE SMS/UZED SY PUNtH STRAW INSTALLED IN ACCORDANCE WITH SECTION 35.023 OF THE EROS/OW AND SEDIMENT CONTROL HANDBOOK OF THE DEPARTMENT OF CONSERVAVON STATE OF CALIFORNIA. TEMPORARY EROSION CONTROI PLANTING AND IRRICAVnH ML PERMANENT AND TEMPORARY EROSION CONTROL PLANTING AND IRRIGAVON SHALL BE INSTALLED AND MAINTAINED AS REQUIRED IN SECTION 212 OF THE STANDARD SFEanCAVONS AND THE FOLLOWING: A. HYDROSEEDING SHALL BE APPUED TO: I. ALL SLOPES THAT ARE GRADED 6:1 (HORIZONTAL TO VERTICAL) OR STEEPER MiEN THEY ARE: °- ™§§^ 0" WORE IN HEIGHT AND ADJACENT TO A PUBUC WALL OR b. ALL SLOPES 4 FEET OR MORE IN HEIGHT 2. -^^^S GRADED FLATTER THAN 6:1 mEN ANY OF THE FOLLOWING CONDITIONS a. NOT SCHEDULED FOR IMPR0VEMENTS(C0NSTRUCT10N OR GENERAL LANDSCAPING) WITHIN 60 DAYS OF ROUGH GRADING. b. IDENTIFIED BY THE PARKS AND RECREAUOW DIRECTOR AS HIGHLY VISIBLE TO THE PUBUC. c. HAVE ANY SPEQAL CONDIVON IDENVFIED BY THE CITY ENGINEER THAT WARRANTS IMMEDIATE TREATMENT ft HYDROSEEDED AREAS SHALL SE IRRIGATED IN ACCORDANCE WITH THE FOLLOWING CR/IERIA; I. ALL SLOPES THAT ARE GRADED 6:1 OR STEEPER AND THAT ARE: a. THREE TO EIGHT FEET IN HBGHT SHALL BE IRRIGATED BY HAND WATERING FROM QUICK COUPLERS/HOSE BIBS OR A CONVENTIONAL SYSTEM OF LOW PREQPITATION SPRINKLER HEADS PROVIDING 100X COVERAGE. b. GREATER THAN S FEET IN HEIGHT SHALL BE WATERED BY A CONVENVON-AL SYSTEM OF LOW PREOPITAVON SPRINKLER HEADS PROVIDING lOOX COVERAGE. 2. AREAS SLOPED LESS THAN 6:1 SHALL BE IRRIGATED AS APPROVED BY THE CITY ENGINEER. PRIOR TO HYDROSEEaNG. THE DEVELOPER SHALL SUBMIT A PROPOSED SCHEME TO PROVIDE IRRIGATION TO THE OTY ENGINEER. THE PROPOSAL SHALL BE SPEOFIC REGARDING THE NUUBERS.TYPES AND COSTS OF THE ELEMENTS OF THE PROPOSED SYSTEM. 3. IRRIGAVON SHAU MAtNTAIN THE MOISTURE LEVEL OF THE SOIL AT THE OPTIMUM LEVEL FOR THE GROWTH OF THE HYDROSEEDED GROWTH. C- HYDROSEEDING MIX SHALL CONSIST OF ALL OF THE FOLLOWING: 1. SEED MIX SHALL CONSIST OF NO LESS THAN: a. 20 lbs. PER ACRE OF ROSE CLOVER b. 20 Iba. PER ACRE OF 20RR0 FESCUE c. 3 Iba. PER ACRE OF E SCHOOL OA CAUFORNICA d. 4 Iba. PER ACRE OF ACHILLEA MILl£FOUA e. J Iba. PER ACRE OF ALYSSUM (CARPET OF SNOW) f. 1/2 lb. PER ACRE OF DfMORPHOLECA g- ITEMS c.d.e. AND f OF THIS SUBSECTION MAY BE OMITTED ON r,i£I^".°^!?,o'?!iPl^^ AREA BpNG HW3R0SEEDED IS NOT VISIBLE FROM EITHER A PUBLIC STREET OR RESIDENTIM. STRUCTURES h. ITEM a OF THIS SUBSECVON MUST BE INOCULATED WITH A NITROGEN nXING BACTERIA AND APPUED DRY EITHER BY DRILUNG OR BROADCASTING BEFORE HYDROSEEDING. AU. SEED MATERIALS SHAU BE TRANSPORTED TO THE JOBSITE IN UNOPENED CONTAfNERS M7H THE CALIFORNIA DEPARTMENT OF FOOD AND AGRICULTURE CERVFICAVON TAG ATTACHED TO. OR PRINTED ON SAIO CONTAINERS / NON-PHYTO-TOXIC HCmNG AGENTS MAY SE ADDED TO THE HIUROSEED SLURRY AT THE DISCRETION OF THE CONTRACTOR 2. TYPE 1 MULCH APPUED AT THE RATE OF NO LESS THAN 2000 lbs PER ACRE TYPE 6 MULCH (STRAW) MAY BE SUBSTITUTED. AU OR PART. FOR HYDRAULICALLY APPUED FIBER MATERIA.. WHEN STRAW IS USED IT MUST BE ANCHORED TO THE SLOPE BY MECHANICALLY PUNCHING NO LESS THAN 50* OF THE STRAW INTO THE SOIL. J, FERTILIZER CONSISTING OF AMMONIUM PHOSPHATE SULFATE. 16-20-0. WITH 15X SULPHUR APPUED AT THE RATE OF 500 lbs. PER ACRE. AREAS TO BE HYDROSEEDED SHAU BE PREPARED PRIOR TO HYDROSEEDING BY I. ROUGHENING THE SURFACE TO BE PLANTED BY ANY OR A COMBINATION OF- a TRACK WAITING SLOPES STEEPER THAN 6:1 b. HARROWING AREAS 6:1 OR FLATTER THAT ARE SUFHCIENTLY FRIABLE c RIPPING AREAS THAT WIU NOT BREAK UP USING ITEMS a OR b ABOVE. 2. CONDITIONING THE SOILS SO THAT IT IS SUITABLE FOR PLANTING SY: a ADJUSTING THE SURFACE SOIL MOISTURE TO PROVIDE A DAMP BUT NOT SATURATED SEED 8ED-b. THE ADDITION OF SOIL AMENDMENTS, PH ADJUSTMENT. LEACHING OR COVERING SALINE SOILS TO PROVIDED MABLE CONDITIONS FOR GROWTH- HYDROSEEDED AREAS SHAU BE MAINTAINED TO PROVIDE A VIGOROUS GROWTH UNTIL THE PROJECT IS PERMANENTLY LANDSCAPED OR. FOR AREAS WHERE HYDROSEEDING IS THE PERMANENT LANDSCAPING. UNTIL THE PROJECT IS COMPLETED AND AU BONDS RELEASED. GRAVEL BAGS GEO FABRIC INLET PROTECTION I. SET POSTS AND EXCAWTE A 4 BY 4 IN (10 BY 10 CM) TRENCH UPSLOPE FROM AND ALONG THE LINE OF POSTS 2 STAPLE HrRf FENONG TO THE POSTS. 3. ATTACH THE FILTBl FABRIC TO THE MiE FENCE AND EXTEND IT INTO THE TRENCH. 4 IN (10 CM) 4 BACKFILL AND COMPACT THE EXCAVATED SOIL SILT FENCE GRAVEL BAGS /-(^^ GRAVEL SAGS GRAVEL BAG CHECK DAM UP OF GUTTER SPILLWAY, 1-BAG HIGH GRAVEL BAGS 2-BAGS HIGH GRAVEL BAG PROTECTION FOR INLET ON SUMP UP OF GUTTER SPILLWAY, t-BAG HIGH GRAVEL BAGS GRAVEL BAG PROTECTION'~'^'^' FOR INLET ON GRADE INSTAU HBER ROIL ALONG L CONTOUR. TOe OF SLOPE INSTALL nBER ROLL NEAR TOE OF SLOPE TYPICAL FIBER ROLL INSTALLATION FIBER ROLL aO' UIN 3/4" X 3/4- WOOD STAKES MAX 4.0" SPAOMG ENTRENCHMENT DETAII 7807 CONVOY COURT, SUITE 200 SAN DIEGO, CA 921 1 1 (858)268-8030 40 20 "AS BUILf ENGINEER Of WOftK REVISION DESCRIPTION DATE INITU OTHER APPROVAL SHEET 25 CITY OF CARLSBAD ENGINEERING DEPARTMENT SHEETS 57 EROSION CONTROL PLANS FOR THE: WIDENING OF OLIVENHAIN ROAD & RANCHO SANTA FE ROAD DETAILS AND NOTCS APPROVED. WILUAM E. RUMMER PE: 26176 EXP' 03/31/OS DEPUTY CITY ENGINEER DATE DWN BY- MSR CHKD BV: MJW RVWD BY: - PROJECT NO 3860-1 DRAWNG NO 399-1 owe. H\001\orawdwp\02l-!)t^Cod\Pliirs8t\iht 35 - mc 03-dtlsd»a WTE' Mor 01, 2006 I0-57om IREPS:'toilh. bord«_lci90 Olivenhain Municipal Water District Olivenhain Road/Ftencho Santa Fe Road Widening Storm Water Management F*lan - Febmary 2006 Attachment C - Inlet Filter Basket [ CALIFORNIA CURB SHELF BASKET WATER CLEANSING SYSTEM SAN DIEGO REGIONAL STANDARD CURB INLET m WIDTH OF INLET WIU VARY CATCH 8ASM NS4U SHOT ORfVS PM FIGURE 1 DETAIL OF PARTS REUOVABU BASKET CATCHES EVERYTHING AND AiAY BE REMOVED THROUGH MANHOLE WTTHOi/T ENTRY. 47 TO 51 FIGURE 2 DETAIL OF INSTALLATION FLOW RATES per J FT. Basket 0'S0*Ct/*A^2*g*h Crf- VSj''' -07 SO A(ft^) h (ft) Coarse Screen .62 .84 0.146 1.06 Med Screen .56 1.36 0.75 J.5J Fine Screen .68 1.02 1.167 4.01 TOTAL 86 HGURE 3 DETAIL OF PROCESS BOX MANUFACTURED FROM MARINE GRADE FIBERGLASS & GEL COATED FOR UV PROTECTION 5 YEAR MANUFACTURERS WARRANTY PATENTED ALL FILTER SCREENS ARE STAINLESS STEEL The above flow rates are based on unobstructed screens. NOTES: 1.SHELF SYSTEM PROVIDES FOR ENTIRE COVERAGE OF INLET OPENING SO TO DIVERT AIL FLOW TO BASKET. 2.SHELF SYSTEM UMUFACTURO) FTtOM MAROiE GRADE nBERGLASS.Ga COATED FOR UV PROTECTION. J.SHELF SYSTEM ATTACHED TO THE CATCH BASIN WITH NON-CORROSIVE HARDWARE. 4. nLTRATI0N BASKET STRUCTURE MANUFACTURED OF MARINE GRADE nB£RGLASS,GEL COATED FOR UV PROTECTION. 5. nLTRATI0N BASKET FINE SCREEN AND COARSE CONTAINMENT SCREZN MANUFACTURED FROM STAINLESS STEEL 6. nLTRAT10N BASKET HOLDS BOOM OF ABSORBENT MEDIA TO CAPTURE HYDROCARBONS. BOOM IS EASILY REPLACED WTfHOUT REMOVING MOUNTING HARDWA/^ 7. FILTRAT10N BASKET LOCATION IS DIRECTLY UNDER MANHOLE FOR EASY MAINTENANCE. EXCI-USI^E CALirOF^NIA DISTKIBUTOH: BIO CLEAN EhJ^yiRONMENTAL SETRV/CET R.O. BOX 800. OCEANSIDE. CA, OSO^O TEL. 7GO—^SS—7e^O rAX:760—<S3~3 7 7C Emofl: lr>fG&bl^dmanmrt\^lronmmntol.nmt suNm <mm pfmKTs/« BuiT Fw CAST aemG MO ARE PCSaa TO BE POmm INFJmWCTVRE AK SHOULD mST FOR XCAKS. 79B CLEARLAKE RD. SUITE 02 COCOA FL. TEL. 331—e37~7SS2 FAX 6 J7— 7SS-4 CURB INLET BASKET SYSTEM DATE,- 0^/-\ Z/OA- DRArTER: N.R.B. SCAUEiSr — T s UNITS '^INCHES i!im iidM SPECIRCATtONS Curb Inlet Basket I. Specifications Coverage- The curb inlet basket provides full coverage of inlets such that all catch basin influent, at rated flow^s, is conveyed to the filter. The filter will retain all windblown and swept debris entering the drain. 1^ Shelf System- The filter basket is located in the catch basin directly beneath a manhole opening for direct service/access from the manhole. The filter provides a shelf system made of UV protected marine grade fiberglass to direct water flow from the curb inlet to the filter, which is located directly under the manhole. Non-Corrosive Materials: All components of the filter system, including mounting hardware, fasteners, support * brackets filtration material, and support frame are constructed of non-corrosive materials (316 stainless steel, and UV/marine grade fiberglass). Fasteners are stainless steel. Primary filter mesh is 316 stainless steel welded ^ screens Filtration basket screens for coarse, medium and fine filtration is x 1 ^-expanded. 10x10 mesh, and m 35 X 35 mesh, respectively. No polypropylene, monofilament netting or fabrics shall be used in the products. » Durability Filter (excluding oil absorbent media) and support structures are of proven durability, with an expected i sen/ice life of 10 to 15 years. The filter and mounting structures are of sufficient strength to support water, P sediment, and debris loads when the filter is full, with no slippage, breaking, or tearing. All filters are warranted for a minimum of five (5) years. r r r r Oil Absorbent Media: The Filter is fitted with an absorbent media for removal of petroleum hydrocarbons from influent and so placed in the fitter assembly to treat influent at rated flow. Absorbent media is easily replaceable in the filter, without the necessity of removing fixed mounting brackets or mounting hardware. Overflow Protection: The drain filter is designed so that it does not inhibit storm flows entering the curb inlet, or obstruct flow through the catch basin during peak stomn flows. Filter Bypass: Water will not bypass the filter at low flows, nor bypass through attachment and inlet contact surfaces at low flows. Pollutant Removal Efficiency: The filter is designed to capture high levels of trash and litter, grass and foliage, sediments, hydrocarbons, grease and oil. POLLUTANT Curb Inlet Basket Trash & Litter 90 to 95% nil & Grease 54' to 96%* Sediments/TSS 73Mo91%* Orqanics 79.3%' Total Nitroqen 65 to 96%* Total Phosphorus 71 to 96%= m Non-Scouring: During heavy stonn flows or other flows that bypass the filter, the filter screen design prevents " washout of debris and floatables in the filter basket. Filter Removal: The filter basket is readily removable from the mounting/support frame for maintenance or replacement. Removal and replacement of filter screens is accomplished without the necessity of removing mounting bolts, support frames, etc., but by lift out through the manhole. II. Installation Installation- The filter will be securely installed in the catch basin or curb inlet opening, with contact surfaces f" sufficiently joined together so that no filter bypass can occur at low flow. All anchoring devices and fasteners are installed within the interior ofthe drain inlet. The filter basket is located in the catch basin directly beneath a r manhole opening for direct service/access from the manhole. The filter system provides a shelf system to direct * water flow from the Inlet to the filter, which is located under the manhole. m Installation Notes: ' * 1. Bio clean environmental services, inc. Inlet filter inserts shall be installed pursuant to the manufacturer's ,j- recommendations and the details on this sheet. ^, ^ ^- ^ 2. Inlet filter Insert shall provide coverage of entire inlet opening, including inlet wing(s) where applicable, to direct ,_ all fiow to basket(s). 3 Attachments to inlet walls shall be made of non-corrosive hardware. !• 4 Filtration basket structure shall be manufactured of marine grade fiberglass, gel coated for ultraviolet protection. 5 Filtration basket fine screen and coarse containment screen shall be manufactured of stainless steel. m G. For inlet filter inserts that Include the shelf system, shelf system shall be manufactured of marine grade fiberglass, gel coated for ultraviolet protection. 111. Maintenance Maintenance: The filter is designed to allow for the use of vacuum removal of captured materials in the filter basket serviceable by centrifugal compressor vacuum units without causing damage to the filter or any part of the mounting and attachment hardware during normal cleaning and maintenance. Fitters can be cleaned and vacuumed from the manhole-opening and not from the curb opening. All filters not accessible from the manhole will be rejected. Maintenance Notes: 1 Bio clean environmental services, inc. Recommends cleaning and debris removal maintenance a minimum of four times per year, and replacement of hydrocartjon booms a minimum of twice per year. 2 Following maintenance and/or inspection, the maintenance operator shall prepare a maintenance/inspection record. The record shall include any maintenance activities performed, amount and description of debris collected, and condition of filter. ^ * , 3 The owner shall retain the maintenance/inspection record for a minimum of five years from the date of maintenance. These records shall be made available to the governing municipality for inspection upon request at any time. . . -J 4. Any person performing maintenance activities must have completed a minimum of OSHA 24-hour hazardous waste wortter (hazwoper) training. 5 For grate inlet units: remove grate to gain access to inlet fitter insert. Where possible the maintenance should be performed from the ground surface. Note: entry into an underground stormwater vault such as an inlet vault requires certification in confined space training. 6 For curb inlet units: remove manhole lid to gain access to inlet filter insert. Where possible the maintenance should be perfomied from the ground surface. Note: entry into an underground stormwater vault such as an inlet vault requires certification in confined space training. 7 Remove all trash, debris, organics, and sediments collected by the inlet filter insert. 8 Evaluation of the hydrocarbon boom shall be performed at each cleaning. If the boom is filled with hydrocarbons and oils it should be replaced. Attach new boom to basket wilh plastic ties through pre-drilled holes in basket. ,. ^ ..u. . ^ 9. Transport all debris, trash, organics and sediments to approved facility for disposal in accordance with local and state requirements. _ . , ^ . . 10 The hydrocarbon boom is classified as hazardous material and will have to be picked up and disposed of as hazardous waste. Hazardous material can only be handled by a certified hazardous waste trained person (minimum 24-hour hazwoper). BIO CLEAN A ENVIRONMENTAL SERVICES, INC.^^^ P O Box 869, Oceanside, CA 92049 (760 433-7640 Fax (760) 433-3176 v»ww. b ioclea nenvi ron mental. net Olivenhain Municipal Water District aivenhain Road/F?ancho Santa Fe Road Widening Storm Water Management Plan - February 2006 Attachment D - Drainage Report l- |- WIDENING OF OLIVENHAIN ^ ROAD & RANCHO SANTA FE f ROAD I* DRAINAGE BACKUP CALCULATIONS r CITY OF CARLSBAD ^ Boyle Engineering Corporation Project Manager MICHAEL CRULL ^ Project Engineer RYAN CHANCE SD-O01-021-00 February 2005 •m TABLE OF CONTENTS C^l CALCULATIONS 1 INLET ANALYSIS 2 h •m h h \- I HYDRAULIC ANALYSIS 1 D YEAR & 1 •• YEAR PLAN SHEETS 4 PRDFIUE SHEETS 5 HYDROLDEY MANUA.L FIGURES DRAINAGE BASIN MAP BACKUP CALCULATIONS m P Sag Inlet Analysis I* f mm Sag inlets were sized based on the City of Carlsbad design criteria for Sag Inlets. 2cfs per linear foot of curb opening On Grade Inlet Analysis On Grade Inlets were analyzed using Flowmaster, a hydraulic analysis program. The results of this analysis are presented in this section. BEST ORIGINAL Worksheet for Inlet 01 |ng Discharge: Slope: Gutter Width: Gutter Cross Slope: Road Cross Slope: rylanning Coefficient: Curb Opening Length: Local Depression: Local Depression Width: Efficiency; Intercepted Flow: Bypass Flow: Spread: Depth: Flow Area: Gutter Depression: Total Depression: Velocity: Equivalent Cross Slope: Length Factor: Total Interception Length: 96.58 4.78 0.17 7.41 0.36 I. 14 0.07 0.40 4.33 0.17793 0.85 II. 81 % fl'/S ff/s ft ft ft' ft ft ft/s ft/ft Worksheet for Inlet 03 Discharge: Slope: Gutter Width: Gutter Cross Slope: Road Cross Slope: Manning Coefficient: Curb Opening Length: Local Depression: Local Depression Width •RMI^ Efficiency: Intercepted Flow: Bypass Flow: Spread: Depth: Flow Area: Gutter Depression: Total Depression: Velocity: Equivalent Cross Slope: Length Factor: Total Interception Length: 100.00 1.88 0.00 9.09 0.27 0.89 0.09 0.43 2.12 0.16241 1.41 6.40 % ftVs ff/s ft ft ft> ft ft ft/s m Worksheet for Inlet 04 Flow Element: Solve For: Discharge: Slope: Gutter Width: Gutter Cross Slope: Road Cross Slope: Manning Coefficient: Curb Opening Length: Local Depression: Local Depression Width: Efficiency: Intercepted Flow; Bypass Flow: Spread: Depth: Flow Area: Gutter Depression: Total Depression: Velocity: Equivalent Cross Slope: Length Factor; Total Interception Length: Curb Inlet On Grade Efficiency 0.51 0.00420 1.17 0.01 0.01 0.012 5.00 4.00 1.33 99.11 0.51 0.00 9.12 0.09 0.42 0.00 0.33 1.23 0.08682 0.93 5.39 ft'/s ftm ft ft/ft ft/ft ft in ft % fP/s ft'/s ft ft ft' ft ft ft/s ft/ft Worksheet for Inlet 05 Solve For: Discharge: Slope: Gutter Width: Gutter Cross Slope: Road Cross Slope: Manning Coefficient: Curb Opening Lengtti; Local Depression: Local Depression Width: Curb Inlet On Grade Efficiency 6.02 0.01500 1.33 0.09 0.02 0.012 13.00 4.00 1.33 fP/s ft/ft ft ft/ft ft/ft ft in ft Efficiency: Intercepted Flow: Bypass Flow: Spread: Depth: Flow Area: Gutter Depression: Total Depression: Velocity: Equivalent Cross Slope: Length Factor: Total Interception Length: 92.29 5.56 0.46 11.31 0.32 1.34 0.09 0.43 4.49 0.13453 0.76 17.12 % ft*/s ftVs ft ft ft^ ft ft ft/s ft/ft Worksheet for inlet 06 Discharge: Slope: Gutter Width: Gutter Cross Slope: Road Cross Slope: Manning Coefficient; Curb Opening Length: Local Depression: Local Depression Width: Efficiency: Intercepted Flow: Bypass Flow; Spread: Depth: Flow Area: Gutter Depression: Total Depression; Velocity; Equivalent Cross Slope: Length Factor: Total Interception Length: 100.00 3.59 0.00 10.10 0.20 1.02 0.00 0.33 3.52 0.33098 1.07 7.51 % ft'/s ft'/s ft ft ft' ft ft ft/s ft/ft Worksheet for Inlet 07 Discharge: Slope: Gutter Width; Gutter Cross Slope: Road Cross Slope; Manning Coefficient: Curb Opening Lengtti: Local Depression: Local Depression Width Efficiency: Intercepted Flow: Bypass Flow: Spread: Depth: Flow Area: Gutter Depression: Total Depression: Velocity: Equivalent Cross Slope; Length Factor: Total Interception Length: 100.00 0.58 0.00 6.24 0.18 0.26 0.12 0.45 2.20 0.28649 1.11 3.61 % ft'/s ft*/s ft ft ft' ft ft ft/s ft/ft Worksheet for Inlet 10 Flow Element: Solve For: Discharge; Slope: Gutter Width; Gutter Cross Slope; Road Cross Slope: Manning Coefficient: Curb Opening Length; Local Depression: Local Depression Width: Efficiency: Intercepted Flow: Bypass Flow: Spread: Depth: Flow Area: Gutter Depression: Total Depression: Velocity: Equivalent Cross Slope: Length Factor: Total Interception Length: Curb Inlet On Grade Efficiency 0.51 0.05000 1.17 0.11 0.03 0.012 4.00 4.00 1.17 97.57 0.50 0.01 1.58 0.14 0.09 0.09 0.43 5.53 0.39289 0.87 4.58 ft'/s ft/ft ft ft/ft ft/ft ft in ft % ft'/s ft'/s ft ft ft' ft ft ft/s m Worksheet for Inlet 12 Discharge: Slope: Gutter Width: Gutter Cross Slope: Road Cross Slope: Manning Coefficient: Curb Opening Length; Local Depression: Local Depression Width: \esuj Efficiency: Intercepted Flow: Bypass Flow: Spread: Depth: Flow Area: Gutter Depression; Total Depression: Velocity: Equivalent Cross Slope: Length Factor: Total Interception Length: 88.00 6.57 0.90 13.99 0.37 2.02 0.09 0.43 3.70 0.11192 0.69 17.34 % ft'/s ft'/s ft ft ft' ft ft ft/s m. Worksheet for Inlet 13 Flow Element: Solve For: ^^^^ Discharge: Slope: Gutter Width; Gutter Cross Slope: Road Cross Slope; Manning Coefficient: Curb Opening Length: Local Depression: Local Depression Width: Efficiency: Intercepted Flow: Bypass Flow: Spread: Depth: Flow Area: Gutter Depression: Total Depression: Velocity: Equivalent Cross Slope; Length Factor. Total Interception Length: Curb Inlet On Grade Efficiency 2.51 0.00800 1.33 0.09 0.02 0.012 5.00 4.00 1.33 78.49 1.97 0.64 8.96 0.27 0.86 0.09 0.43 2.90 0.16436 0.57 8.71 ft'/s ft/ft ft ft/ft ft/ft ft in ft % ft'/s ft'/s ft ft ft' ft ft ft/s ft/ft Worksheet for Inlet 14 Discharge: Slope: Gutter Width: Gutter Cross Slope: Road Cross Slope: Manning Coefficient: Curb Opening Length: Local Depression: Local Depression Width Efficiency: Intercepted Flow: Bypass Flow: Spread: Depth: Flow Area: Gutter Depression: Total Depression: Velocity: Equivalent Cross Slope: Length Factor: Total Interception Length: 100.00 0.58 0.00 3.89 0.17 0.21 0.09 0.43 2.72 0.28966 1.06 3.78 % ft'/s ft'/s ft ft ft' ft ft ft/s ft/ft GENERAL DATA: HYDROLOGIC PARAMETERS: 1 ' 2 3 4 1 mam o 0 n OK 0.86 n 0 0.50 nyllljl paved areas v.oO comm./resident cut/fill slopes undeveloped 0.86 0.55 20.0 Determined from Figure 3-5 & 3-6 inches inches 2,91 inches/hour RATIONAL METHOD CALCULATION 0.92 ft^/s T| 1.38 ft^/s GENERAL DATA: HYDROLOGIC PARAMETERS: 1 2 3 A d. 0.98 0 0 0 0.90 0.85 0.55 0.50 paved areas comm./residenl cut/fill slopes undeveloped trnmAaiimmmmmmik 2.70 4.04 inches/hour inches/hour RATIONAL METHOD CALCULATION 2.38 ft^/s 3.57 ft^/s GENERAL DATA: HYDROLOGIC PARAMETERS: 1 f 2 3 4 3 •B 1-10 0 0 0 H 0.90 0.85 0.55 0.50 HHII psved areas comm./resident cut/fill slopes undeveloped 1.10 Determined from Figure 3-5 & 3-6 inches inches 2.70| inches/hour inches/hour RATIONAL METHOD CALCULATION 2.67 ft^/s 4.00 ft^/s GENERAL DATA: HYDROLOGIC PARAMETERS: ho6^rE}imsmomtim^ 1 2 3 4 4 0 0 0.27 0 0.90 0.85 0.55 0.50 paved areas comm./resident cut/fill slopes undeveloped 0.27 0.55 20.0 1.8 2.7 Determined from Figure 3-5 & 3-6 inches inches l=7.44'P6'TC''t-0.645) inches/hour 2.91 inches/hour RATIONAL METHOD CALCULATION 0.29 ft^/E 0.44 ft^/s 3 GENERAL DATA: HYDROLOGIC PARAMETERS: 0.30 0.90 Detemiined from Figure 3-5 inches inches 5.25 inches/hour 1 1 2 3 4 1 ^ n 0 0 H 0.30 1 0.90 u 0.85 0.55 0.50 ^ paved areas comm./resident. cuffill slopes undeveloped RATIONAL METHOD CALCULATION GENERAL DATA: HYDROLOGIC PARAMETERS: 1 2 3 4 6 0.33 0 0 0 0.90 0.85 0.55 0.50 paved areas comm./residenL cut/fill slopes undeveloped 0.33 0.90 fl.O Determined from Figure 3-5 T^i] inches inches 2.7 |=7.44'P6'TC^('0.645) 3.50 inches/hour 5.25 inches/hour RATIONAL METHOD CALCULATION 1.04 ft^/s 1.56 ft^/s • • GENERAL DATA: HYDROLOGIC PARAMETERS: 1 2 3 4 7 0.08 0 0 0 0.90 0.65 0.55 0.50 paved areas comm./resident. cut/fill slopes undeveloped Determined from Figure 3-5 inches inches 7.11 inches/hour RATIONAL METHOD CALCULATION 0.34 nvs 0.51 ft^/s GENERAL DATA: HYDROLOGIC PARAMETERS: 1 2 3 4 8 1 nPi 0 i 0 i 0.90 u 0.85 0.55 0.50 1 paved areas comm./resident cut/fill slopes undeveloped Detennined from Figure 3-5 & 3-6 inches inches 1.49 inches/hour 2.24 inches/hour RATIONAL METHOD CALCULATION 0.67 ft^/s n| ~ 1.31 ft'/s ll GENERAL DATA: \BMSWimMBM HYDROLOGIC PARAMETERS: 1 1 2 3 4 MM 1.43 0 0 0 ismriFFmoEFFJeiENMMM WM 0.90 0.85 0.55 0.50 P^$mim0jM0tiKmmm paved areas comm./resident cut/fill slopes undeveloped Determined from Figure 3-5 & 3-6 inches 3.66 inches/hour RATIONAL METHOD CALCULATION 3.14 fi-'ls 1 4.71 ft^/s 1 GENERAL DATA: HYDROLOGIC PARAMETERS: 1 10 2 3 4 1.09 0.90 0 0.85 0 0.55 0 0.50 paved areas comm./residenL cut/fill slopes undeveloped Determined from Figure 3-5 & 3-6 inches 2.44| inches/hour 3.66 inches/hour RATIONAL METHOD CALCULATION 2.39 ft^/s 1 ^^r^^TrnmsmmG^ 3.59 ftVs 1 GENERAL DATA: HYDROLOGIC PARAMETERS: 0.55 cuffill slopes 0.50 undeveloped Determined from Figure 3-6 & 3-6 inches inches 2.241 inches/hour RATIONAL METHOD CALCULATION 2.82 ft^/s 4.23 ft^/s • GENERAL DATA: HYDROLOGIC PARAMETERS: \:immBlmQPMm^ inches/hour 4.04 inches/hour RATIONAL METHOD CALCULATION 2.16 ft^/s 3.24 ft7s • •1 GENERAL DATA: 14 HYDROLOGIC PARAMETERS: 1 2 3 4 1 14 I 0.53 0 0 0 1 0.90 0.65 0.55 0.50 1 paved areas comm./resident. cut/fill slopes undeveloped Determined from Figure 3-5 inches 5.25 inches/hour RATIONAL METHOD CALCULATION GENERAL DATA: 15 HYDROLOGIC PARAMETERS: Determined from Figure 3-5 inches inches l=7.44-P6-TC'^(-0.645) 4.74 i inches/hour 7.11 [inches/hour 1 1 2 3 4 msBM^^r^Ff^KIKIfl^^ •i 0.08 0 0 0 Mi 0.90 0.85 0.55 0.50 paved areas comm./restdenl cut/fill slopes undeveloped RATIONAL METHOD CALCULATION 0.34 if is 1 0.51 ft^/s 1 GENERAL DATA: HYDROLOGIC PARAMETERS: 0.09 0.90 • 4.74 • 7.11! Determined from Figure 3-5 inches inches inches/hour 1 1 2 3 4 i 16 1 0 0 0 i 0.90 0,85 0.55 0.50 P paved areas comm./resident cut/fill slopes undeveloped RATIONAL METHOD CALCULATION 0.38 ft^/s 1 0.58 ft^/s 1 GENERAL DATA: HYDROLOGIC PARAMETERS: 1 2 3 4 17 0 0 0 0.14 0.90 0.85 0.55 0.50 paved areas comm./resident cuffill slopes undeveloped 4.74 7.11 5^ Detennined from Figure 3-5 inches inches (-0.645 inches/hour RATIONAL METHOD CALCULATION 0.33 ft^/s 0.50 ft^/s GENERAL DATA: HYDROLOGIC PARAMETERS: 1 2 3 4 18 0 0 0.57 0 1 0.90 0.85 0.55 0.50 P paved areas comm./resident cut/fill slopes undeveloped Determined from Figure 3-5 & 3-6 inches inches 2.91 inches/hour RATIONAL METHOD CALCULATION 0.61 nvs 0.91 ff/s 3 3 GENERAL DATA: 19 HYDROLOGIC PARAMETERS: 1 1 2 3 4 PH 19 gafi£itf!MgE JJIBWWIHIlWIg Si 0.78 0 0 0 RilNOFISEOEBFiCtEtS&ISKM H 0.90 0.85 0.55 0.50 mn paved areas comm./resident cut^ill slopes undeveloped Determined from Figure 3-5 inches inches 3.50 inches/hour 5.25 inches/hour RATIONAL METHOD CALCULATION: 2.46 ft^/s 3.69 ft-*/s 1 GENERAL DATA: HYDROLOGIC PARAMETERS: 1 1 2 3 4 m 20 H 0 0 0 P 0.90 0.85 0.55 0.50 in paved areas comm./reEident cut/fill slopes undeveloped 0.24 0.90 10.0 1.8 2.7 Detennined from Figure 3-5 inches inches l=7.44'P6'TC''(-0.645) mmEj^mmciuMm^^iMML^ 3.03 4.55 inches/hour RATIONAL METHOD CALCULATION 0.66 ft^/s 0.96 ft^/s GENERAL DATA: HYDROLOGIC PARAMETERS: [ 1 2 3 4 'A^Ej^mBEXMimiMMvmM WM 21 mi3Em^0BEmmmKisKm llH 0.37 0 0 0 nWj3i^BEmmmmBM 0.90 0.85 0.55 0.50 paved areas comm./resident cut/fill slopes undeveloped Determined from Figure 3-5 inches/hour 5.25 inches/hour RATIONAL METHOD CALCULATION 1.17 ft=/s 1 1.75 ft^/s 1 GENERAL DATA: HYDROLOGIC PARAMETERS: 1 f 2 3 4 H 22 mnmmimEsmmmmm 9 0.59 0 0 0 mNGm^^EmmiENmmm HI 0.90 0.85 0.55 0.50 jHH paved areas comm./restdenl cut/fill slopes undeveloped fl.O [Determined from Figure 3-5 inches inches l=7.44-P6'TC'*{-0.645) 3.50| 5.25| RATIONAL METHOD CALCULATION 1.86 ftVs 1 mmmmmwm 2.79 ft"/s 1 GENERAL DATA: HYDROLOGIC PARAMETERS: 1 1 2 3 4 'yiR&^fi'OMPFf^^i^Ui^^ gft^BflEfl'EgE^Mliill^^ lli 0.09 0 0 0 • 0.90 0.85 0.55 0.50 HHI paved areas comm./resident cut/fill slopes undeveloped Determined from Figure 3-5 inches inches =7.44-P6-TC*(-0.645) inches/hour 7.11 inches/hour RATIONAL METHOD CALCULATION 0.38 ft^/s 0.58 ft^/s a 10 YEAR STORM ANALYSIS Pipe Report Label Upstream Downstream Total Upstream Downstream Length jonstructet Section \^anning£ Full Velocity Hydraulic Hydraulic Description Node Node System Invert Invert (ft) Slope Size n Capacity Out Grade Grade Flow Elevation Elevation (ft/ft) (cfs) (ft/s) Line In Line Out (cfs) (ft) (ft) (ft) (ft) P-1 PIPE COLLAR 1 OUTLET 72.01 110.55 109.00 52.00 0.029808 36 inch 0.013 115.15 14.44 113.23 110.99 P-10 INLET 4 INLET 3 (EXIST) 0.34 129.86 129.50 71.00 0.005070 18 Inch 0.013 7.48 0.19 130.95 130.95 P-9 (EXIST) INLET 3 (EXIST) EXIST JUNCTION 17.52 129.50 124.00 129.00 0.042636 18 Inch 0.013 21.69 9.91 130.95 125.51 P-8 EXIST JUNCTION JUNCTION 2 17.52 124.00 122.33 59.00 0.028305 24 inch 0.013 36.06 10.99 125.51 123.34 P-7 JUNCTION 2 JUNCTION 1 17.52 122.16 120.24 164.00 0.011707 24 inch 0.013 24.48 5.58 123.67 122.72 P-6 INLET 2 JUNCTION 1 3.71 126.95 126.79 8.00 0.020000 18 Inch 0.013 14.85 5.78 127.69 127.38 P-9 J-2 INLET 1 (EXIST) 0.00 0.00 0.00 319.00 0.000000 12 Inch 0.010 0.00 0.00 124.31 124.31 P-5 (EXIST) INLET 1 (EXIST) PIPE COLLAR 3 50.78 122.00 121.00 30.00 0.033333 30 inch 0.013 74.88 10.59 124,31 123.36 P-4 PIPE COLLARS JUNCTION 1 50.78 121.00 120.46 41.00 0.013171 30 Inch 0.013 47.07 10.72 123.36 122.77 P-3 JUNCTION 1 PIPE COLLAR 2 72.01 120.04 111.32 48.50 0.179794 36 Inch 0.013 282.80 24.89 122.72 112.61 P-2 PIPE COLLAR 2 PIPE COLLAR 1 72.01 111.32 110.55 25.80 0.029845 36 inch 0.013 115.22 13.37 114.00 112.69 Title: Olivenhain Road Widening h:\o01\omwdwp\021-00\calcs\drafnage\system l.stm BoyleEnglrwerlngCorporation 02/22/05 03 07-58 PM © Haestad Methods. Inc. 37 Brookside Road Waterbury, CT 06706 USA +1-203-755-1666 Project Engineer: Ryan Chance StormCAD v5.5 [5.5003] Page 1 of 1 I Scenario: Base 120.00 Eloallon II) TNM: OHvanhBlfi Road WMantng n:\CiO1VWTH*(At|)\O!1.0C:"ea1caV(raln*oe\ByM>rn t.alm M/K/DS 03:55:00 PM Boyt* btptnM'tnt CorporiHon CHiMtMl Mafhodi. Inc. 37 BrookaW* RMil Walwbufy, CT 0«7oe USA 11.303-755-1666 Profaet Englnsor: Ryan Chanca ShwmCAD v5.EIS,5003i Paga 1 of i Scenario: Base P o c ® S ^ 0 „^ ^°ncr4i.00 ft ^ t CM S O 9 Oj;;«cy CM'^^ N Elevation (ft) 0+00 'nch n« ^2-00 ft •^Oft/ft 105.00 1+00 2+00 Tms: Ollvanriain Road WManlng n:^o01VMnwdw()^031.0C^cMM^>»a•naoe^avs^ l.sfm 02/23/05 03:13:15 PM Station (fl) Boyt* EngliwarlnB CorporMlon eHa««KlM«<hods.1nc. 37 BrooksWa «oad WatwOo-y, CT 08706 USA *1-303-755-1686 Prolacl Eoglr>eer Ry"" Chanca StormCAD vS.S [S.5O03) Page t of 1 Scenario: Base p-9 INLET 1 (EXIST! „Q INLET 3 (EXIST) EXIST JUNCTION RPE CCSLLAR 3 JUNCTION 1 JUNCTION 2 RPE COLLAR 2 PIPE COLLAR 1 tXTTLET TBIB; OBvanhaPn fload WWenlng h:\D01\DmwdwrW31-OCncalc*draPoBB«\ay«tsm l.stm 02/22^5 03:04:33 PM Boyt* Englrwlna CorpvMton OMaaaladMelhodi.lfx:. 37 BmoWkfe RoKf WatartHi-y. CT 06708 USA +1-203-756.1888 Projad Entfnaar: nyanCfiance SlomCAD v6.5 [5,5003) Page 1 of 1 Pipe Report Label Upstream Node Downstream Node Total System Flow (cfs) Upstream Invert Elevation (ft) Downstream Invert Elevation (ft) Length (ft) jonstructec Slope (ftffl) Section Size Manning; n Full Capacity (CIS) Velocity Out (ft/s) Hydraulic Grade Line In (ft) Hydraulic Grade Line Out (ft) description P-2 (EXIST) INLET 12 (EXIST) JUNCTION (EXIST) 4.98 108.30 107.39 67.26 0.013530 24 inch 0.013 26.31 6.44 109.09 107.98 P-3 (EXIST) INLET 13 (EXIST) JUNCTION (EXIST) 1.67 108.22 107.89 41.01 0.008047 24 inch 0.013 20.29 3.90 108.67 108.28 P-1 (EXIST) JUNCTION (EXIST) EXIST OUTLET 10.14 106.89 106.00 147.64 0.006028 30 inch 0.013 31.84 5.76 107.95 106.97 P-11 INLET 6 PIPE COLLAR 2 2.39 118.50 117.17 106.63 0.012473 18 inch 0.013 11.73 5.21 119.08 117.63 P-10 PIPE COLLAR 2 INLET 14 2,39 117.17 115.00 78.74 0.027559 18 inch 0.013 17.44 1.67 117.75 116,13 P-9 INLET 14 INLET 10 2.77 115.00 112.50 68.90 0.036286 18 Inch 0.013 20.01 2.16 115.63 113.52 P-8 INLET 7 INLET 10 0.38 117.36 112.20 188.00 0.027447 18 Inch 0.013 17.40 0.23 117.59 113.52 P-7 INLET 10 PIPE COLLAR 1 3.49 112.21 112.00 9.84 0.021336 18 inch 0,013 15.34 5.93 112.92 112.55 P-12 PIPE COLLAR 1 JUNCTION (EXIST 3.49 112.00 106.89 385.50 0.013256 18 Inch 0.013 12.09 2.60 112.71 107.95 Title: Olivenhain Road Widening ^ , ^ , . ^ ,««r.n«H h:\o01\omwdwp\021-00\calcs\drainage\system 2.stm I "2 H^ ^^^^^^^ nfi70fl USA +1-203-755-1666 02/22/05 04-59-11 PM © Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA +1-203 75& ibbb Proiect Engineer: Ryan Chance StormCAD v5.5 [5.5003] Page 1 of 1 m H a> ,6 - c.: r-m m o O -A _ T) m O O 9-d m -a O.I i m I X '5 CO I O c -t f-m H m X TJ CO c -a o d o z m X !3 Profile Scenario: Base .06.63 „ - P-7 « S • 0,021336 lUII 3*00 aes.soii i.nch Con, P-1(£XISI( ,05.00 7toou7M(i aotncn Ci>-.e..i.'*°° • 3 - o.oa«o;8 luti TUe: OUvannaln Road WktorUng n:^o01Vlmwawp^O^I'OO^calcB^dr•lnaea^ayBU^l 2.sun 02/22A>5 04:57:37 PM Boyt* Cnglnaaf Ing CorporaUon O Haaatad M«IIKK1B, Inc. 37 BiooKsua Road Malert>uiy, CT 06706 USA +1-303-755-1666 Projact Eoglnaer: Rytui Chance SlurmCAO v5.51&.5003| Paga I ol 1 Profile Scenario: Base llfr.OO Elavilon iri) •M 00 (I ^ • S . n „ '-""er,, Z<00 • s. 0.01 J2SB rt/n p-1 leiciST) «.00MJ.64tl somen Concr.l^'""* • S • 0.00fi02B ll/M Suilon (IIJ Tnis: Okvannam Road WkMning h:\oOt ^jmwi>wpia21-OOU:alcsMialnaeaWyalam ;.Mm 02/e2A)5 04:66:14 PM O Haaalad Mainodt, Inc. Boyta Engliwlna CotporaUon 37 BiaoKuda Road WalwtMKy. CT 06706 USA »1-203-755-1666 Prolad Englneaii Ryan Chanca SlomiCAD v5.& 15.6003) Pags t ot 1 Scenario: Base P X uj TOO o £ CO -^iS>.ii coco CO (0 o® ?«>>>>.! I P-2 (EXIST) JA26ft 24 inch Concrete @ S = 0.013530 fVft P-1 (EXIST) ""+0^47.64 ft 30 Inch Concrete @ 3 = 0.006028 ft/ft Station (ft) _ o£:o ><iS>|^ 115.00 110.00 Elevation (ft) 105.00 3-1-00 Title: Olivenhain Road Widening « , - i „ i « h:\o01\omwdwp\021-00\calcs\drainage\system 2.stm 7 !/"= H wf^^^^ nfi708 USA +1-203-755-1666 02/22/05 04-56:39 PM ® Haestad Mettiods. Inc. 37 Brool<slde Road Waterbury. CT 06708 USA +l ^OJ i bDn Project Engineer: Ryan Ctiance StormCAD v5.5 [5.5003] Page 1 of 1 Pi... a Scenario: Base X $28 CM, CM CM 2CM . OCMCO H CD X UJ O) O) 0) o> CO 00 00 CD o ^ N CON O o CO Oizooo ^ 1- T- 1-H + 5;: QO c c CQ^ Q. •== 3 H 4= 4^ LU oi^o H^qo9 U*" CDOCO —' 05 o o xi5>|D 115.00 110.00 Elevation (ft) P-3 (EXIST) 41.01 ft 24 inch Concrete ^"^= 0.008047 ft/ft P-1 (EXIST) 105.00 1+00147.64 ft 30 inch Concrete^^^^ @ S = 0.006028 ft/ft Station (ft) Title: Olivenhain Road Widening h:\o01\omwdwp\021-00\calcs\drainage\system 2.stm Boyle Engirwering Corporation 02/22/05 04:58:58 PM © Haestad Methods. Inc. 37 Brookside Road Waterbury. CT 06708 USA +1-203-755-1666 Project Engineer; Ryan Chance StormCAD v5.5 15.5003] Page 1 of 1 100 YEAR STORM ANALYSIS jnai... Bas Pipe Report Label Upstream Downstream Total Upstream Downstream Length i^nstructet Section i^annlngs Full Velocity Hydraulic Hydraulic Description Node Node System invert Invert (ft) Slope Size n Capacity Out Grade Grade Flow Elevation Elevation (ft/ft) (cfs) (ft/s) Line In Line Out (cfs) (ft) (ft) (ft) (ft) P-1 PIPE COLLAR 1 OUTLET 76.31 110.55 109.00 52.00 0.02980B 36 Inch 0.013 115.15 14.70 113.28 111.07 P-10 INLET 4 INLET 3 (EXIST) 0.51 129.86 129.50 71.00 0.005070 18 inch 0.013 7.48 0.29 130.96 130.95 P-9 (EXIST) INLET 3 (EXIST) EXIST JUNCTION 18.32 129.50 124.00 129.00 0.042636 18 inch 0.013 21.69 10.37 130.95 125.54 P-8 EXIST JUNCTION JUNCTION 2 18.32 124.00 122.33 59.00 0,028305 24 Inch 0.013 38.06 11.09 125.54 123.37 P-7 JUNCTION 2 JUNCTION 1 18.32 122.16 120.24 164.00 0.011707 24 inch 0.013 24.48 5.83 123.70 122.77 P-6 INLET 2 JUNCTION 1 5.56 126.95 126.79 8.00 0.020000 18 inch 0.013 14.85 6.39 127.86 127.53 P-9 J-2 INLET 1 (EXIST) 0.00 0.00 0.00 319.00 0.000000 12 inch 0.010 0.00 0.00 124.33 124.33 P-5 (EXIST) INLET 1 (EXIST) PIPE COLLAR 3 52.43 122.00 121.00 30.00 0.033333 30 inch 0.013 74.88 10.68 124.33 123.51 P-4 PIPE COLLAR 3 JUNCTION 1 52.43 121.00 120.46 41.00 0.013171 30 inch 0.013 47.07 11.01 123.51 122.79 P-3 JUNCTION 1 PIPE COLLAR 2 76.31 120.04 111.32 48.50 0.179794 36 inch 0.013 282.80 25.13 122.77 112.65 P-2 PIPE COLLAR 2 PIPE COLLAR 1 76.31 111.32 110.55 25.80 0.029845 36 Inch 0.013 115.22 13.68 114.05 112.76 Title: Olivenhain Road Widening h:\...\calcs\drainage\system 1 - lOOyear.stm 02/23/05 08:47:06 AM Boyle Englneertng Corporation © Haestad Methods, Inc. 37 Brookside Road Waterbury, CT 06708 USA +1 -203-755-1666 Project Engineer: Ryan Chance StormCAD v5.5 [5.5003] Page 1 of 1 Scenario: Base INLET 1 (EXIST) PIPE COLLAR 3 JUNCTION 1 EXIST JUNCTION JUNCnON 2 g INLET3(EXIST1 fob *^e(v- H- RPE COLLAR 2 a I 1 RPE CXXLAR 1 TTUB: Olhjwihsin Ftoad Widening h:^o01^o^lw^Jwp^0^1-^M^^»ka\t»ak>S0B\sys1e^^ l.stm O2/Z3/0S 06:30:24 AM BoyW Ei»a'""f*n8 CorporiHon OHaBSladMem«ti.(nc. 37 BrooMl* Road WaKMtoury, CT OfiTOB USA .1-303-755-18 Pxjiaci EnQtnosr: RyanChBUCS StonnCAD vS.S |S.5003) Paga 1 ot t Pro Scenario: Base •^10 71.00 * ia bich Concrai • s. o.oosoTO t»n I^O.DD EW-alkin [•) ime: OHvanhaln noad W«»nhg h:V.,VMIcA>rBh>a9B\«¥»t«ni 1 - lOOyBSr.Btm 0V23ms m:43:30AM O Hasstad Me1t>odS. Inc. Boyla EnglnMflna CorportMon 37 Broolc*la no«) Wslertwry, CT 06706 USA * 1-203-755-1666 Project Enolneer: Ryan Chance SlotmCAO vS.S [5.S0031 Page 1 oil Scenario: Base Z ddtd \- +7.T".T:3"r. ^«>>>>.E| Office C-Ecm P o = a.m£SiZ(n 30.00 135.00 130.00 125.00 120.00 Elevation (ft) 115.00 110.00 S = 0+00 UOO Concrete 105.00 2+00 Title: OllvenriBin Road Widening h;\,..\cBlcMralnBge\>ysteni 1 - lOOyaar.atm ta/XSmS 06:44:41 AM Station (It) Boyl* EnglnMring Corperitlon OHaeslBd Methods. Inc. 37 BfoofcsMe Road Waterbury. CT 06706 USA .1-203-755-1666 Protect Engineer: Ryan CTiance StomiCAD vS.S 15.50031 Page 1 ol 1 KTOI Scenario: Base in ^ Ol— in -I (d >E§ (D Tt o) 9 " 3 4^ (M N-o Tt O § « > > > > E I P-6 - 8.00 ft IB inch Concrete S = 0.020000 ft/ft o +.. UJ°£0..c fi: ">>.iD 135.00 130.00 125.00 < -is: UJ? D. a 0.5} di: OO in ^ d 0> O O) UJ + - .. I- Q. 5js>.E| 120.00 Elevation (fl) 115.00 0+00 1+00 110.00 105.00 2+00 Tnie: OtIvenhBin Road WIdenlrtg h:V...AcalM^<)ralnageVayalain 1 - lOOyaar.sIm 02/33n» 08:45:16 AM Station (ft) Boyla Enfllnwfing CorporaUon ©MaeatBd Method., inc. 37 B-oot«We Road WetartMHy. CT 06708 USA .1.203-755-1666 Prt^ed Enghieer: Ryan Cnance SlormCAO vS.S 15.60031 Page 1 ol 1 Pipe Report Label Upstream Downstream Total Upstream Downstream Length ;;onstructec Section Manning* Full Velocity Hydraulif Hydraulic Description Label Node Node System Invert Invert (ft) Slope Size n Capacity Out Grade Grade Node Flow Elevation Elevation (ftm) (cfs) (ft/s) Line In Line Out (cfs) (ft) (ft) (ft) (ft) P-2 (EXIST) INLET 12 (EXIST) JUNCTION (EXIST) 7.47 108.30 107.39 67.26 0.013530 24 inch 0.013 26.31 7.15 109.27 108.12 P-3 (EXIST) INLET 13 (EXIST) JUNCTION (EXIST) 2.51 108.22 107.89 41.01 0.008047 24 inch 0.013 20.29 4.39 108.77 108.36 P-1 (EXIST) JUNCTION (EXIST) EXIST OUTLET 15.24 106.89 106.00 147.64 0.006028 30 inch 0.013 31.84 6.42 108.21 107.22 P-11 INLET 6 PIPE COLLAR 2 3.59 118.50 117.17 106.63 0.012473 18 inch 0.013 11.73 5.83 119.22 117.74 P-10 PIPE COLLAR 2 INLET 14 3.59 117.17 115.00 78.74 0.027559 18 inch 0.013 17.44 2.23 117.89 116.28 P-9 INLET 14 INLET 10 4.17 115.00 112.50 68.90 0.036286 18 inch 0.013 20.01 2.77 115.78 113.69 P-8 INLET 7 INLET 10 0.58 117.36 112.20 188.00 0.027447 18 inch 0.013 17.40 0.33 117.64 113.69 P-7 INLET 10 PIPE COLLAR 1 5.26 112.21 112.00 9.84 0.021336 18 inch 0.013 15.34 6.52 113.09 112.70 P-12 PIPE COLLAR 1 JUNCTION (EXIST 5.26 112.00 106.89 385.50 0.013256 18 inch 0.013 12.09 3,20 112.88 108.21 Title: Olivenhain Road Widening h:\...\calcs\drainage\system 2 - lOOyear.stm 02/22/05 04:52:45 PM Boyle Engineering Corporation ©Haestad Methods. Inc. 37 Brookside Road Waterbury, CT 06708 USA +1-203-755-1666 Project Engineer: Ryan Chance StormCAD v5.5 [5.5003] Page 1 of 1 o IS \^ If 5 lU in P-6 il Scenario: Base 59>£i I'll"' P-ri """fl IBheh • S . O.0ia*73tt/i| O.DO 1.00 2.00 p-1 (EXIST) 1OS.00 ^'00 147.84 fl 3av,eh Co-cr..';"" S - 0.008028 lUTt Smion (tl) Title: OHvenKsIn Road WIcfanIng ti;\...>cal(*ilra(na9e>Bvatem S - lOOyoar.Btm 0»2»T)S 04:47:50 PM BoylB Englnaerlng CorporaMon O Haestad MeltK)*. inc. 37 BiooMKJe Road Watertomy, CT 06708 US* .1-203-755-1666 Protect Englnaer: Hyen Chance SlormCAD vS.5 [5.5003] Page 1 ol 1 Scenario: Base Profile: Profile - 2 Scenario: Base tIS.OO E\»nnan (H) - P-7 B,a4 n 1« Inch Csneratt • S - 0.021 M« ivn 2.00 p-12 3IS,sa I, ,g fc,^^ Conr.,,, ,.00 p-1 (EXIST! S.OO 147.«4 ri 30 heh CoBcfllV" • s. o.oososxim TWa: OWenhaM Road WkMnlng h:\...Vc»leaV)rBloage\Byetem 2 - Jfxyfear.tim ramiOi 04:48:43 PM BoyI* Enfllnaaflnfl CorpofBtfcm CHae«ladMettKX)».lnc. 37 Brootalda Ro«l Waterbury. CT 06708 USA .1-M3-756-1666 Profoci Engineer: Ryan Chance StormCAD vS.5 [5.5003] Page 1 of 1 Scenario: Base P ^ 03 o r UJ *-a>o^ -J re > E § LU OJO>OJ®i^O) •—' COCO CO (D Q CO Z*^NCDN OO CD OfjooC-cvjo ^aj>>>>£§ 67.26 ft O-i-OO P-2 (EXIST) 24 inch Concrete S = 0.013530 fVft I- UJ Oo9 (D 0<D L. (D OCD XiS>|3 P-1 (EXIST) 1+00 147.64 ft 30 inch Concreti"^°° @ 8 = 0.006028 ft/ft 115.00 110.00 Elevation (ft) 105.00 3-t-OO Station (ft) Title: Olivenhain Road Widening h:\...\calcs\dralnage\system 2 - lOOyear.stm 02/22/05 04:49:19 PM Boyle Engineering Corporation ©Haestad Methods, inc. 37 Brookside Road Waterbury. CT 06708 USA -.1-203-755-1666 Project Engineer: Ryan Chance StormCAD v5.5 [5.5003] Page 1 of 1 Scenario: Base P ^ CO CM X ^ UJ.^C0C\J" " OCJOO co2 I- X LU '.^CO CO CO<D o °9 OHOOO OO c c c cn > > > a >.i§ =5 55££££a:w P-3 (EXIST) 41.01ft 24 inch Concrete @°S°=°0.008047 ft/ft Xi5>|3 11 5.00 110.00 Elevation (ft) P-1 (EXIST) 105 00 1+00147.64 ft 30 inch Concrete ""^^ @ S = 0.006028 ft/ft Station (ft) Title; Olivenhain Road Widening h:\...\calcs\drainage\system 2 - lOOyear.stm 02/22/05 04:49:42 PM Boyle Engineering Corporation © Haestad Methods. Inc. 37 Brookside Road Waterbury, CT 06708 USA +1-203-755-1666 Project Engineer; Ryan Chance StomiCAD v5.5 [5.5003] Page 1 of 1 15 20 30 40 50 1 Minutes DuraOon Directions for Application: (1) From precipitation maps determine 6 hr and 24 tir amounts for the selected frequency. These maps are included in the County Hydrology Manual (10,50. and 100 yr maps included in the Design and Procedure Manual). (2) Adjust 6 hr precipitation (if necessary) so that it is within the range of 45% to 65% of the 24 hr precipitation (not applicaple to Desert). (3) Plot 6 hr precipitation on the right side of the chart. (4) Draw a line through the point parallel to the plotted lines. (5) This line is the intensity-duration curve for the location being analyzed. Application Form: (a) Selected frequency year (b) Pe = in.. P24 p^^ = (c) Adjusted Pg'^' = in. (d) tj( = min. (e) I = in./hr. Note: This chart replaces the Intensity-Duration-Frequency curves used since 1965. P6 1 1.5 2 2.5 3 3.5 4 4.5 5 5.5 6 Duration 1 1 1 1 1 I r 1 1 1 1 s 2.B3 3.95 5.27 6.59 7.90 9.22 10.54 11.86 13.17 14.49 15.81 7 2.12 3.18 4.24 5.30 6.36 7.42 B.48 9.54 10.60 11.66 12.72 10 1.68 2.53 3.37 4.21 5.05 5.90 6.74 7.58 8.42 9.27 10.11 IS 1.30 1.95 2.59 3.24 3.89 4.54 5.19 5.84 6.49 7.13 7.7$ 20 i.oe 1.62 2.15 2.69 3.23 3.77 4.31 4.85 5.39 5.93 6.46 25 0.S3 1.40 t.87 2.33 ^80 3.27 3.73 4.20 4.67 5.13 5.60 30 40 0.B3 0.69 1.24 1.03 1.66 1.38 2.07 1.72 2.49 2.07 2.90 21411 3.32 3.73 4.15 4.58 4.98 30 40 0.B3 0.69 1.24 1.03 1.66 1.38 2.07 1.72 2.49 2.07 2.90 21411 2.76 3.10 3.45 3.79 4.13 50 0.60 0.90 1.19 1.49 1.79 2.09 2.39 2.69 2.96 3.26 3.56 60 0.S3 0.80 1.06 1.33 1.59 1.86 2.12 2.39 2.65 2.92 3.18 M 0.41 0.61 0.B2 1.02 1.23 1.43 1.83 1.84 2.04 2.25 2.45 120 0.34 0.51 0.68 0.B5 1.02 1.19 1.36 1.53 1.70 1.87 ZW 150 0.29 0.44 0.59 0.73 0.68 1.03 1.18 1.32 1.47 1.62 1.76 180 0.26 0.39 0.52 0.65 0.7B 0.91 1.04 1.1B 1.31 1.44 1.57 340 0.22 0.33 0.43 0.54 0.65 0.76 0.B7 0.96 1.08 1.19 1.30 300 0.19 0.28 0.38 0.47 0.56 0.66 0.75 0.85 0.94 1.03 1.13 960 0.17 nw 0.33 0.42 0.50 0.5a 0.67 0.75 0.84 0.92 1.00 F I G U R E Intensity-Duration Design Chart-Template HazMat/County Hydrogeology Manual/lnLDur D««Ign Cbart.FH8 •7 X u o o B c m O < B) 3 a -I 3 to o o 21 o 3 o tn u T3 3" w O c 71 a m •3 o WATERCOURSE DISTANCE IN FEET OVERIJU^D FLOW TIME IN MINUTES 2% Concrete Gutter RESIDENTIAI. STREET ONE SIDE ONLY 5 6 7 8 9 10 Discharge (C.F.S.) EXAMPLE: Given; Q > 10 S ^ 2.5% Chart gives: Depth ^ 0^, Velocity = 4.4 t.p^. SOURCE: San Diego County Department of Special District Services Design Manual FIGURE Gutter and Roadway Discharge - Velocity Chart HazMat/County Hydrogeokw Manual/Gutter Dischsrge.Velocity.FHS I- -I-1- [-^• -i-i-l-l-? r^-CT- 1-?-'-^ i-^-i-l -i-i-^-i-i-i-r- County of San Diego Hydrology Manual Rainfall Isopluvials 100 Yeir Rainfill Event - 6 Honrs Iflophivlal (Inches) &Ws smcis Vt'c Hit ,Sun niir^to Covered! m •mum rmrnu n- 3 0 3 Miles -i-|3fe-3[r'| I I I ' County of San Diego Hydrology Manual mnGinEERints coRPORRTian (PFN). D • r)IJsJFAJHAiAJ ROAO Description CAL.t.\JLAri^(r FLo^ ' THRO Ftar. F/f£^ Job No, By^L^Daie^lihl- Chk By. .Date. a 7V^ rrr 1^: OeO\7. t Trr JL'. Ik on I O'/. 12^ zs r 7T 2^3 Q I 1?^ 12 7. 172 O KC 7. 5C o3: 7 7<' 7/ fie 02. OLIVENHAIN ROAD WIDENING ON-SITE DRAINAGE BASINS BHin « Aral (BCFM) 1 DM I a.M i i.iA A o.n i 0.30 i O.N i l_ 0.0* 1 iM « i.« 1.09 11 12 O.M \t OSl ii OOB IB O.OO IT 0.1' it oi* ia O.Tg JA 0.14 il 0..1T & 0.19 23 0.09 N^TI; CP«I1»CE »flC» '3 K5 ??:i TO IWL aiirw*TiDv 0" n. ion .w c 330 XD SC> J: •• - 1W BOVLE 0L1\^^TN Municipal Tlntfr niBiri';! Olfvarhain Municipal Water District Olivenhain Road/Rancho Santa Fe Road Widening Storm Water Management Plan - February 2006 Attachment E - Storm Water Requirements Applicability Checklist storm Water Standards 4/03/03 VI. RESOURCES & REFERENCES APPENDIX A STORM WATER REQUIREMENTS APPLICABILITY CHECKLIST Complete Sections 1 and 2 of the following checklist to determine your project's permanent and construction storm water best management practices requirements. This form must be completed and submitted with your permit application. Section 1. Permanent Storm Water BMP Requirements: If any answers to Part A are answered "Yes," your project is subject to the "Priority Project Permanent Storm Water BMP Requirements," and "Standard Permanent Storm Water BMP Requirements" in Section III, "Permanent Storm Water BMP Selection Procedure" in the Storm Water Standards manual. If all answers to Part A are "No," and any answers to Part B are "Yes," your project is only subject to the "Standard Permanent Storm Water BMP Requirements". If every question in Part A and B is answered "No," your project is exempt from permanent storm water requirements. Part A: Determine Priority Project Permanent Storm Water BMP Requirements. Does the project meet the definition of one or more of the priority project categories?* Yes No 1 Detached residential development of 10 or more units X 2 Attached residential development of 10 or more units X 3 Commercial development greater than 100,000 square feet X 4. Automotive repair shop X 5. Restaurant X 6 Steep hillside development greater than 5,000 square feet X 7 Prelect discharging to receiving waters within Environmentally Sensitive Areas X 8. Parlting lots greater than or equal to 5,000 ft^ or with at least 15 parking spaces, and potentially exposed to urban runoff X 9. Streets, roads, highways, and freeways which would create a new paved surface that is 5.000 square feet or greater X * Refer to the definitions section in the Storm Water Standards for expanded definitions of the priority proiect categories. Limited Exclusion: Trenching and resurfacing work associated with utility projects are not considered priority projects. Parking lots, buildings and other structures associated with utility projects are priority projects If one or more of the criteria in Part A is met. If all answers to Part A are "No", continue to Part B. 30 storm Water Standards 4/03/03 Part B: Determine Standard Permanent Storm Water Requirements Does the project propose: Yes No 1. New Impervious areas, such as rooftops, roads, parking lots, driveways, paths and sidewalks? X 2. New pervious landscape areas and Irrigation systems? X 3 Permanent structures within 100 feet of any natural water body? X 4. Trash storage areas? X 5. Liquid or solid material loading and unloading areas? X 6. Vehicle or equipment fueling, washing, or maintenance areas? X 7. Require a General NPDES Permit for Storm Water Discharges Associated with Industrial Activities (Except construction)?* X 8. Commercial or industrial waste handling or storage, excluding typical office or household waste? X 9. Any grading or ground disturbance during construction? X 10. Anv new storm drains, or alteration to existing storm drains? X *To find out if your project is required to obtain an individual General NPDES Permit for Storm Water Discharges Associated with Industrial Activities, visit the State Water Resources Control Board web site at, www.swrcb.ca.gov/stormwtr/lndustrial.html Section 2. Construction Storm Water BMP Requirements: If the answer to question 1 of Part C is answered "Yes," your project is subject to Section IV, "Construction Storm Water BMP Performance Standards," and must prepare a Storm Water Pollution Prevention Plan (SWPPP). If the answer to question 1 is "No," but the answer to any of the remaining questions is "Yes," your project is subject to Section IV, "Construction Storm Water BMP Performance Standards," and must prepare a Water Pollution Control Plan (WPCP). If every question in Part C is answered "No," your project is exempt from any construction storm water BMP requirements. If any of the answers to the questions in Part C are "Yes," complete the construction site prioritization in Part D, below. Part C: Determine Construction Phase Storm Water Requirements. Would the project meet any of these criteria during construction? Yes No 1. Is the project subject to California's statewide General NPDES Permit for Storm Water Discharges Associated With Construction Activities? X 2 Does the project propose grading or soil disturbance? X 3. Would storm water or urban runoff have the potential to contact any portion of the construction area, Including washing and staging areas? X 4. Would the project use any construction materials that could negatively affect water quality if discharged from the site (such as, paints, solvents, concrete, and stucco)? X 31 storm Water Standards 4/03/03 Part D: Determine Construction Site Priority In accordance with the Municipal Permit, each construction site with construction storm water BMP requirements must be designated with a priority: high, medium or low. This prioritization must be completed with this form, noted on the plans, and included in the SWPPP or WPCP. Indicate the project's priority in one of the check boxes using the criteria below, and existing and surrounding conditions of the project, the type of activities necessary to complete the construction and any other extenuating circumstances that may pose a threat to water quality. The City reserves the right to adjust the priority of the projects both before and during construction. [Note: The construction priority does NOT change construction BMP requirements that apply to projects; alt construction BMP requirements must be identified on a case-by-case basis. The construction priority does affect the frequency of inspections that will be conducted by City staff. See Section IV. 1 for more details on construction BMP requirements.] a A) High Priority 1) Projects where the site is 50 acres or more and grading will occur during the rainy season 2) Projects 5 acres or more. 3) Projects 5 acres or more within or directly adjacent to or discharging directly to a coastal lagoon or other receiving water within an environmentally sensitive area Projects, active or inactive, adjacent or tributary to sensitive water bodies • B) Medium Priority 1) Capital Improvement Projects where grading occurs, however a Storm Water Pollution Prevention Plan (SWPPP) is not required under the State General Construction Permit (i.e., water and sewer replacement projects, intersection and street re-alignments, widening, comfort stations, etc.) 2) Permit projects in the public right-of-way where grading occurs, such as installation of sidewalk, substantial retaining walls, curb and gutter for an entire street frontage, etc., however SWPPPs are not required. 3) Permit projects on private property where grading permits are required, however. Notice Of Intents (NOIs) and SWPPPs are not required. • C) Low Priority 1) Capital Projects where minimal to no grading occurs, such as signal light and loop installations, street light installations, etc. 2) Permit projects in the public right-of-way where minimal to no grading occurs, such as pedestrian ramps, driveway additions, small retaining walls, etc. 3) Permit projects on private property where grading permits are not required, such as small retaining walls, single-family homes, small tenant improvements, etc. 32 storm Water Standards 4/03/03 VI . RESOURCES & REFERENCES APPENDIX A STORM WATER REQUIREMENTS APPLICABILITY CHECKLIST o A onH 9 nf the following checklist to determine your project's Complete Sections 1 and 2 of the Tonowiny ^ practices requirements. r=^S.rS= SeaS ^ ap5-on. Project Permanent Storm Water BMP R^.^^'^JT^^^^^sto^ Water BMP Selection Water BMP Requirements" in Section 111, PfJ'"^"^"* ^'"^"^ Procedure" in the Sform Water Standards manual. ,f all answers to Part A are "No" and |Qy ReVu^ements" 'PeveS Sot? "STtSS::^^'^^^^- is exeV permanent storm water requirements. •7"'^""-h--' >^--.H.nH.i HPvrioDment of 10 or more units i. ..T,tK.HrP.iH«ntial development o'i"nr more un.is 4. Automotive repair shop No project categories. aq^ociated with utility projects are not consiaerea continue to Part B. • ^ 30 storm Water Standards 4/03/03 Part B: nAtPrmine Standard Permanent Storm Water Requirements. Does the project propose: 1. New impervious areas, such as rooftops, roads, parking lots, driveways, paths and sidewalks? , — areas and irrigation systems? New pervious landscape Permanent structures within 100 feet of any natural water body? Trash storage areas? 5' Liquid or solid material loading and unloading areas? A. 7. Vehicle or equipment fueling, washing, or maintenance areas? _ Require a General NPDES Permit for Storm Water Discharges Associated with Industrial Activities (Except construction)?* 8. Commercial or industrial waste handling or storage, excluding typical onice or household waste? 9 Any grading or ground disturbance during construction? 10. Any new stomi drains, or alteration to existing stomn drains? Yes No JL Water ^o f^Zt Zpmiec s eq ^ed to General NPUbS Permit tor ^rm Discharged Asso^^^^^^^^^^ industrial Activities, visit the State Water Resources Control Board web site at. www.swrcb.ca.gov/stomnwtr/industrial.html Section 2. Construction Storm Water BIMP Requirements; If the answer to question 1 of Part C is answered "Yes," your project is subject to Sectbn IV 'Constmction Storm Water BMP Performance Standards," and mus prepare a s'o^m Water Pollution Prevention Plan (SWPPP). If the answer to question ,s No but the answer to any of the remaining questions is "Yes," your project is subject to Sec ion 'v "Conl°ructL Storm Water BMP Performance Standards "and must prepare a W^ter ^Dilution Control Plan (WPCP). If every question in Part C ,s answered No vorproiect is exempt from any construction storm water BMP requirements, f any of Te answers to the'questions' in Part C are "Yes," complete the construction site prioritization in Part D, below. ^artc: uetermme oonsuuui-i^jn • —•- Would the project meet any of these criteria during construction? Yes No 1 Is the project subject to Califomia-s statewide General NPDES Pemiit tor btomi vvaie. Discharges Associated With Constmction Activities? X y ? Does the oroiect propose grading or soil aisiurDc»n.b!f .. 3 Would storm water or urt)an runoff have the potential to contact any portion or tne ron^tnirtinn ama. including washing and staging areas? > 4 Would the project use any construction materials that could negatively attect water quality if discharged from the site (such as. paints, solvents, concrete, and stucco)? X 31 Storm Water Standards 4/03/03 Part D: Determine Construction Site Priority In accordance with the Municipal Permit, each construction site with construction storm water BMP requirements must be designated with a priority: high, medium or low. This prioritization must be completed with this form, noted on the plans, and included in the SWPPP or WPCP. Indicate the project's priority in one of the check boxes using the criteria below, and existing and surrounding conditions of the project, the type of activities necessary to complete the construction and any other extenuating circumstances that may pose a threat to water quality. The City reserves the right to adjust the priority of the projects both before and during construction. [Note: The construction priority does NOT change construction BMP requirements that apply to projects; all construction BMP requirements must be identified on a case-by-case basis. The construction priority does affect the frequency of inspections that will be conducted by City staff. See Section IV.1 for more details on construction BMP requirements.] A) High Priority 1) Projects where the site is 50 acres or more and grading will occur during the rainy season 2) Projects 5 acres or more. 3) Projects 5 acres or more within or directly adjacent to or discharging directly to a coastal lagoon or other receiving water within an environmentally sensitive area Projects, active or inactive, adjacent or tributary to sensitive water bodies • B) Medium Priority 1) Capital Improvement Projects where grading occurs, however a Storm Water Pollution Prevention Plan (SWPPP) is not required under the State General Construction Permit (i.e., water and sewer replacement projects, intersection and street re-alignments, widening, comfort stations, etc.) 2) Permit projects in the public right-of-way where grading occurs, such as installation of sidewalk, substantial retaining walls, curb and gutter for an entire street frontage, etc. , however SWPPPs are not required. 3) Permit projects on private property where grading permits are required, however, Notice Of Intents (NOIs) and SWPPPs are not required. • C) Low Priority 1) Capital Projects where minimal to no grading occurs, such as signal light and loop installations, street light installations, etc. 2) Permit projects in the public right-of-way where minimal to no grading occurs, such as pedestrian ramps, driveway additions, small retaining walls, etc. 3) Permit projects on private property where grading permits are not required, such as small retaining walls, single-family homes, small tenant improvements, etc. 32 storm Water Standards 4/03/03 APPENDIX C EXAMPLE PERMANENT STORM WATER BEST MANAGEMENT PRACTICES The foiiowing are a list of BMPs that may be used to minimize the introduction of pollutants of concern that may result in significant impacts to receiving waters. Other BMPs approved by the Development Services Division as being equal or more effective in pollutant reduction than comparable BMPs identified below are acceptable. All BMPs must comply with local zoning and building codes and other applicable regulations. Site Design BMPs Minimizing Impervious Areas Consistent With City Standards, Ordinances and Policies - Incorporate landscaped buffer areas between sidewalks and streets. - Design residential streets for the required pavement widths - Minimize the number of residential street cul-de-sacs and incorporate landscaped areas to reduce their impervious cover. - Use open space development that incorporates smaller lot sizes - Increase building density while decreasing the building footprint - Reduce overall lot imperviousness by promoting alternative driveway surfaces and shared driveways that connect two or more homes together - Reduce overall imperviousness associated with parking lots by providing compact car spaces, minimizing stall dimensions, incorporating efficient parking lanes, and using pervious materials in spillover parking areas Increase Rainfall Infiltration - Use permeable materials for private sidewalks, driveways, parking lots, and interior roadway surfaces (examples: hybrid lots, parking groves, permeable overflow parking, etc.) to the extent practicable consistent with City standards. - Direct rooftop runoff to pervious areas such as yards, open channels, or vegetated areas, and avoid routing rooftop runoff to the roadway or the urban runoff conveyance system to the extent practicable consistent with City standards. Maximize Rainfall Interception - Maximizing canopy interception and water conservation by preserving existing native trees and shrubs, and planting additional native or drought tolerant trees and large shrubs, to the extent practicable consistent with City Landscape Manual. 35 storm Water Standards 4/03/03 Minimize Directlv Connected Impervious Areas (DClAs) - Draining rooftops into adjacent landscaping prior to discharging to the storm water conveyance system to the extent practicable consistent with City standards - Draining parking lots into landscape areas co-designed as biofiltration areas to the extent practicable consistent with City standards - Draining roads, sidewalks, and impervious trails into adjacent landscaping to the extent practicable consistent with City standards Use of natural drainage systems to the maximum extent practicable Stabilized permanent channel crossings \i - Planting native or drought tolerant vegetation on slopes to the extent practicable consistent with City Landscape Manual. Maximize Rainfall Interception - Cisterns - Foundation planting Increase Rainfall Infiltration - Dry wells Source Control BMPs ^ - storm water conveyance system stenciling and signage - Outdoor material and trash storage area designed to reduce or control rainfall runoff - Efficient irrigation system Treatment Control BMPs Biof liters - Grass swale - Grass strip - Wetland vegetation swale - Bioretention Detention Basins Extended/dry detention basin with vegetated lining - Extended/dry detention basin with impervious lining 36 / storm Water Standards 4/03/03 Infiltration - Infiltration basin - Infiltration trench Pervious Paving - Porous asphalt - Porous concrete - Porous modular concrete block Wet Ponds and Wetlands - Wet pond (permanent pool) - Constructed wetland Drainage Inserts - Catch basin/storm drain inserts - Catch basin screens Filtration Svstems - Media filtration - Sand filtration Hydrodvnamic Separation Svstems - Swirl concentrator - Cyclone separator - Baffle boxes 37 Storm Water Standards 4/03/03 Table 1. Standard Development PToiect&Prio^^ streets. Higiiways & equivalent as identified in Appendix ^.^.gte applicants are encouraged to Incorporate treatment control (1) Refer to Section III.2.A. fijed to tSe requirements of all priori^ project categones that apply. storm Water Standards 4/03/03 III. PERMANENT BEST MANAGEMENT PRACTICES SELECTION PROCEDURE When referred to this Section, by Step 2 of Section 11, complete the analysis required for your project in the subsections of Section 111.1 below. 1. IDENTIFY POLLUTANTS & CONDITIONS OF CONCERN A. Identify Pollutants from the Project Area Using Table 1, Identify the project's anticipated pollutants. Pollutants associated ^A/ith any hazardous material sites that have been remediated or are not threatened by the proposed project are not considered a pollutant of concern. Projects rriee ing the dLfinmon of more than one project category shall Identify all general pollutant categones that apply. Table 2. Anticipated and Potential Pollutants Generated by Land Use Type- Genera/ Pollutant Categories Project Categories Sediments Nutrients Heavy Metals Organic Compounds Trdsh & Debris Oxygen Demanding Substances Oil& Grease Bacteria & Viruses Pesticides Detached Residential Development X X X X X X X Attactied Residential Development ' X X X pn) P(2) p(i) X Commercial Development >100,000 ft2 p(i) p(i) P(2) X P(51 X P(3) ps) Automotive Repair X X(*)(5} X X Restaurants X X X X Hillside Development >5,000 ft^ X X X X X X Parking Lots P(i) P(i) X X p(1) X pd) Streets, Highways & Freeways X p{1)X X X(4) X X X = antidpat P = potentia ed (1) A potential ponuxani ii iaiiusi.-a(jiiiy CAIOW U.. (2) A potential pollutant if the project indudes uncovered parking areas. (3) A potential pollutant if land use involves food or animal waste products. (4) Including petroleum hydrocarbons. (5) Induding solvents. ^ : 12