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HomeMy WebLinkAboutSDP 2019-0014; CARLSBAD OAKS NORTH LOT 2; PRIORITY DEVELOPMENT PROJECT (PDP) STORM WATER QUALITY MANAGEMENT PLAN (SWQMP); 2020-06-01SCALE 1'40' 0 40 80 120 160 CARLSBAD OAKS NORTH LOT 2 DMA EXHIBIT 8/0-BASIN SUMMARY TABLE BOX RISER / SURFACE Al AJ 9 01'ERFL OH' ORIFICES DIAMETER BASIN DMA DRAINS OF M FOOTPRINT A2 (INC/I) C (INCH) D (INCH) STRUCTURE SIZE /4/PERMEABLE LINER? (SOFT) (INCH) (IN)Y) (IN)V UPPER LOH'ER / (INC//ESJ (INc4') (INCH) MA-1 BMP-A BIOFIL TRA liON 8734.98 6 120 60 - 21.0 24 48/48 - 2 YES DMA-2 84/P-B BIO/7L TRA liON 1354.12 6 - 120 60 - 21.0 24 36/36 - 1 YES DMA-3 N/A SELF-MI17CA17NC - - - - - - - - - - - DMA-4 N/A SELF-M/TiCA 17NC I - - - - - - - - - - TO 1W,4 T011 I -I VISTWOE FROM TOF f APRON FOR ENEROY URS 011T AON - N - ) ANOLEOFINFLUENE S kFRIZ OW 0 STRU07URF -10P OF 9A SIN JfADMAINTEACESS 1__"_ZM MOY TOP OF CREASE IN ZINER 7cLEAN OUT L ORA LAYER - H 30 CH\( Al FLEVA liON )ZAN L/ARAN 8 PLACED F: ACA91AW711 URS N A/VOLE OF //VFLUENCE— R,4 IE LINE FROM TOP OF r6 OF PEA / ANCLE OF INFLUENCE CPA WZ LAYER L NE FROM TOP OF AA/T/C/PA TED AND POTENT/AL POLL UTANTS GENERA TED BY LAND USE TYPE PER MODEL BIWP DES/ON MANUAL 0'UNE 2015 PRIORITY PROJECT SEDIMENT NUTRIENTS TRASH OXYOEN DEMAND/NC 01Z BACTERL4 PESX/DES 'ATEOORIES METALS CVMPOUNDS DEBRIS SUBSTANCES PARK/NC LOTS P(i) P(i) X A' P(i) K P(l) A' = AN/iC/PA TED P = P0 TEN//AL A POTEN17AL POLLUTANT IF LANDSCAP//VC EXISTS ONS/TE A POTEN17AL POLLUTANT IF THE PROJECT INCLUDES UNCOVERED PARK/NC AREAS A P07MJAL POLLUTANT IF LAND USE /NVOL YES FOOD OR ANIMAL H'ASTE PRODUCTS /NCLUD/NC PETROLEUM HYDROCARBONS /NCLUD/NO SOL VENTS ALL LC114ZI,) / ( I LO/ER 0 1 T - - Zt 1. O ORA YEL kE4 P iID1 _ ____ OADS SHALL - - / F 070 r - - - PER ZINflo) NOT APPROXIMATE DEPTH T V I / BM 0 SCALE ME CROUNDIVATER /5 CREATER THAN 20' P-A / CALCULATJO/VSPERWORKSHEETB5-1//V HVJ"OFMULCH FOR S/ZINC OIL OROUP FOR / - / - BMPMANUAL / / L .. .... . . / 10 kr MAP Excel Engineering Figure 0.1-1: 85th Percentile 24-hour I sopluvtal Map ATTACHMENT 2 BACKUP FOR POP HYDROMODIFICATION CONTROL MEASURES [This is the cover sheet for Attachment 2.] Indicate which Items are Included behind this cover sheet: Attachment Contents Checklist Sequence Attachment 2a Hydromodification Management i ' Included Exhibit (Required) See Hydromodification Management Exhibit Checklist on the back of this Attachment cover sheet. Attachment 2b Management of Critical Coarse .1 Exhibit showing project Sediment Yield Areas (WMAA Exhibit drainage boundaries marked on is required, additional analyses are WMAACritical Coarse Sediment optional) Yield Area Map (Required) See Section 6.2 of the BMP Design Optional analyses for Critical Coarse Manual. Sediment Yield Area Determination ] 6.2.1 Verification of Geomorphic Landscape Units Onsite i 6.2.2 Downstream Systems Sensitivity to Coarse Sediment J 6.2.3 Optional Additional Analysis of Potential Critical Coarse Sediment Yield Areas Onsite Attachment 2c Geomorphic Assessment of Receiving .1V Not performed Channels (Optional) j Included See Section 6.3.4 of the BMP Design Manual. Attachment 2d Flow Control Facility Design and j V Included Structural BMP Drawdown Calculations (Required) See Chapter 6 and Appendix G of the BMP Design Manual SCALE 1'=40' - 0 40 90 120 160 8/0-8,45//V SUMAI,4RY 7ASLE BOX RISER / SURFACE Al AJ OVER/ZO/%' ORIFICES DIAMETER DMA Tr f- DRAINS TO T)'E OF BMP FOOTPRINT A2 (INCH) C () D (INCH) STRUCTURE SIZE IMPERMEABLE LINER? (SQFT) (INCh) (INCH) UPPER UPPER LOH'ER (INCHES) (INCH) DMA-i gyp-A BIOFIL iRA liON 8734.98 6 120 60 - 21.0 24 48X48 - 2 YES DMA-2 BMP-B BIOFIL iRA liON 135412 6 120 60 - 21.0 24 36X36 - 1 YES 1oMA-3 N/A SELF-MIllCAliNC - - - - - - - - - - - DMA-I N/A SELF-M/l7CAiiNC - - - - - - - - - - - NO LIVE LIVE ,—A0/770NAL MEDIA LOADIN6 LOADINC / TO MA TCH /-I DISTANCE FROM TOE — I WERE MEETS OF SLOPE TO LINER IN - 4'v -6" DROP FROM I NA liVE SOIL CRA VLZ LAYER APRON FOR ENERCY- CURB CUT TO APRON PROPOSED- I • I14 JER QUALITY ENDS AT Al DIMENSION DISSIPATER ) 'NCLE OF INFZUENCE SURFACE -OVERFLOW STRUCTURE .—TOP OF BASIN /'LINE FROM TOP OF TT-4' *1 ANDMAINTENANEACESS EAN PZR /r l\ L /RAVEZ LAYER 7~9 ___ [PER -J, 1 11 ILA YER / xApf V A/ ELEVATION PLAN - /L/NE FLACR CAN BE \ N ED UNDER N, V 7 Z- YC014 TlkW 5-,.. / CURB V INFLUENCE iRA ftON ANCLE OF 47 LINE FROM TOP OF CRA ANOLEOF INFLUENCE ANT/C/PA TED AND POTENT/AL POLL 1/TANTS CENERA TED BY LAND USE TYPE PER MODEL BMP DES/ON MANUAL IJUNE 20/5 PRIORITY PROJECT SEDIMENT NUTRIENTS TRASH COMPOUNDS DEMAND/NC 0XY6'EN OIL& BAC1ERZ4 & PESll'/DES 4TE0OR/ES METALS DEBRIS SUBSTANCES PARK/NC LOTS P(i) P(l) K K P(l) K P(l) K = ANTIC/PA ltD P = POTENTIAL (1) A POTENTIAL POZZUTANT/F LANDSCAPINC EXISTS ONS/TE (2),4 POTENTIAL POLLUTANT IF THE PROJECT INCLUDES UNCOVERED PARK/NC AREAS (3) A POTENTIAL POLLUTANT IF LAND USE IN VOL VES FOOD OR ANIMAL WASTE PRODUCTS (1) /NCLUL7INC PETROLEUM H)DROCARBONS (5) INCLUDINC SOL VENTS 'T'IIIE CRAVELLAYEP __ __ 70 RA All Z0,405 S11,4ZZ A.4511TO NO 57 STOME Al 307 OW Of 145IN b x 4 NOT WE Z150? Rs OAZ HIORIGM-f -T 9 5-1 IN 711f CARZ NOTE 0-30 MIt D BMP MAN CA T011 BASIN DETAIL PERFORATED PIPE SOIL 41 XX AK /' zF/ / UAL BMt loxll NDARY GE ND - — 21 ", ~,,500v-~ — — — — — — — HOROZ 0610AZ 501Z GROUP DMA BOU APPROWYA 7F 00PM TO NW Nh el 141 MA OL El Q ao I -v F 0 V 7 - 10 I \ / [ DMA — * =MUM to N77 7-1 / -V -V ATTACHMENT 2b I FN/E IJT CRITICAL COARSE SEDIMAENT YIELD AREAS *. •.t' '$ I nd :. • # Potential Critical Coarse Sediment Proposed Site Plan - Lot 2 it ' zF • - S Or• ri I