The URL can be used to link to this page

Home My WebLink AboutCT 01-16; CASA LAGUNA; STORM WATER QUALITY; 2002-08-01FRASER ENGINEERING, INC, 2191 El Camino Real, Oceanside. 92054 . (760) 722-349S . FAX (760) 722-3490 . ^^^^^ Storm Water Management Plan FOR Casa Laguna Merit Group, Inc. 2171 El Camino Real Suite 202 Oceanside, CA. 92056 August, 2002 JOB NO. 088-03-24 Storm Water Management Plan For Casa Laguna Development Carlsbad, CA. General: Casa Laguna is a proposed single-family residential development within the City of Carlsbad on the northerly side of Laguna Drive at the intersection with Madison Street. The site is approximately 50,400 square feet (210' x 240'), or approximately1.16 acres of gently sloping ground (northeasterly to southwesterly). The site is currently undeveloped, but will consist of six (6) duplex units with an asphalt-paved drive and concrete sidewalks upon full deveiopment The paved driveway will convey runoff overland via curb and gutter to a proposed inlet at the southwest comer of the driveway at Laguna Drive. This inlet will convey the njnoff to the existing City of Carlsbad storm drain system via buried storni drain piping. The development also proposes small diameter (6") stomri drain pipe along the westeriy and easteriy boundaries to collect surface runoff from the lots and roof drains. These smaller drains will also convey runoff into the City of Carisbad stomn drain system near the above- mentioned inlet. Best Management Practices: The Best Management Practices for this project are separated into two (2) categories: Construction-Related BMP's, and Post-Construction BMP's. The constmction-related BMP's will be utilized throughout the constmction- related activities on the site and will be the responsibility of the general contractor for the site constmction. Mr. Bill Seward of Merit Group, Inc. will function as owner's representative. The post-construction BMP's will be utilized upon completion of construction. Responsibility for these BMP's will be through the Homeowners Association. The BMP's for the Construction-Related activities are shown on the attached "Storm Water Management Plan" and described as follows: • Constmction and maintenance of a rock constmction entrance at the entry to the site; • Installation and maintenance of a straw bale barrier along the perimeter of the site; • Installation and maintenance of hay bale silt barriers at all minor drain inlets (see plan for locations); • Installation and maintenance of block screen gravel silt basins at all major drain inlets (see plan for locations); • Installation and maintenance of graded swales along easteriy and westeriy property lines; • Installation and maintenance of gravel bag barriers in the graded swales mentioned above; • Installation and maintenance of gravel bag barriers on the graded private drive at the 1/3 points (approximately 60' on center); • Installation of hydroseed on "padded" lots where slope is less than 6%; • Good housekeeping including inspection and maintenance of BMP facilities before and after stonns and at regular intervals. The Post-Construction BMP's are described as follows: • Ongoing education of the Homeowners Association for awareness, inspection, and maintenance requirements; I • Roof drains remain as suri'ace flow to the existing inlets. No illicit connections from the roof drains to the stomn drain piping will be allowed; • Ongoing inspection and maintenance of BMP facilities; • Minimizing land disturbances; • Minimizing impervious areas such as additional concrete for patios, etc.; • Use of effective irrigation systems and practices; • Good Housekeeping practices. IBQaOBL . . a (mac VC acNKm ftx ocMENcr turn SHML ae UMX AVAtAmi AT nc mwr scAaon AU. MECESSMT UATIMALS *MLL K « Sre AT (XmCMEWT LOCUTIONS 70 FACUJAie KAPK ONSIWCTKN or TElMMtr OEMCES WCN «MW S EmtBIT. J. oevKCS SHOW » n>«s9iyi MOT BE MovcD OK iMOFB) wmo^ OF TIC fMNEBWe KSHtSIIX. «, TNE OOMTIMCnM 9MU. «S7CW Aa StaSKN OOMTIlaL OEVCES TD WMOMe OMXK TO 7>C SATBFACnOH OF IHE OTY ENSNESt VTBf £M» MN-OFF mODUCMe iMHT/Ul. & TIC carmAcnm SMU. MSMI /wonniMi. aHOKw oarmx. iKAauma AS HAY ar maumB) ar TIC crrr EMBNEZM cut to iMOOMFifiED OMOMS OPOMTMNS of WKNESON CNCUW5MMCES MKH MAr AMK «. nc OOHIKACWK SHAU. BE SSPONSOtf /VO SMUI 7ANE HECESSARY PHDW/TWNS TO ncwNT wue jmErAss am AXAS mtx MWMDED WTDB CREATE A HAZARDOUS OONOnMN. 7. ALL BWSMN OOMTML ICAaURES PnOVBED PEK TIC APPWUbtD OMOMe fUN SHALL BE NoanraMTZD WIKOM. a CRAOED AREAS AROUO TIC /WXCCr PBMCTBt MUST ORAM AWr HtOM TIC FACE OF SLOPE Ar TIC CDNOUSOM OF EACN HORKtM OAr. a ALL REMOVABLE PROTGCTT^C OEVKES SHOW SHAU BE N PLACE Ar THE EMI OF EACH •ORMNS ^DAY WHBI THE nVEJS; OAT RAW PnoaABUrr' FORECMST EXCCBS fmjY PDKENr (4<a» M.T AND Olldt DEBRB SHAU. BE NB«0«CD AFTER EACH tUMFtul ftt AU SRAVEL aMS 9MU BE BUVAP TYPE UTH 3/4 MCH tMNbH AeaREBUIC tl. amo atmmiATKm <r Hranaaam SUTES FAI. TO mowiE Emcmc aowmsE OF eRAOEO SUVES (fOI (XnERAtQ PRKR TO MOtEMBT Ml TIC SOPES SHALL BE STAaUZED BY PUMCH STRANT^TAUfD N AOXMOAMCE WIN SECTION jgLOU OF MJ^SV^^SSJ?"*^ CONTROL HAWBOCK OF TIC OB-AltmBIT OF OONSERmiXN STATE OF CALWRMIL TEUPORART KB08I0N CONTROL PT.AWTIWC AWn TPBTP^TrnTf AU PERMAMNT AM.' TSMRARr EMSMN OONTROL PLAWTMS AMI MRKMTMM SHAU BE BtSTAUED AM) MMNTAfCD AS REBURED W SBCIMN 212 OF THE SHMMRD SPEBFRATOS AM) TIC FOLOWtt A. MVONOaEEDMe 9MU BE APPUS Tft f. AUaaO TJMT ARE CRAOED ftl (MONOaNTAL TO WnKMU OR SIBKR a nsr OR MORE M WWr AMI AOMCENT TD A PIflUe MU OR AU SLOPES 4 FEET OR MORE N /BWT. 2, CR«» aATTER THM *f l«CN ANT OF TNE FCUOMW CCNDIMNS NOT SCNEDU9 FOR imOW>erT9rO0NSIRUCII0N OR BEWML I WIHM aO OATS OFAOUSN qMONft .I.?5£fa* ^ l**"^ «'«•«•'' MSBLE 70 THE PUBUC a HAte ANT SPEEML OOMVTXM OENinED SY UC OTY EMBMBt VMT WRRANIS IMEOMIE TRB«M9rr. WMgamW AREAS SHAU BE MRKMIED N ACONMNeE OTN IK nUOWW L AU SUPES THAT AREOtWED *« ORSIEZPSt AMI MArAREi a. nNKJO ElBNr nST M HEKHT SMU BE NMMTBI BV HAIO m-amtB mou cuat oauna£fHoaE BR OR A oamornoNM. mm OF LMT PRECnTAnON SpSSoS XAOS PROMDMB lOOK ODWIMK h. BROTEK THAN B fgT K MOff SM4U BE WTEHBI BT A OONWMlnN-AL SniBI OF LOW PHEOPmnOH SPMNOiX ICAOS PROMDNB MOK AREAS SLflPHI LESS THAN ftf SHAU BE HMMTES AS ... BKfBK, PRWR 70 mDROSEEDNa TIC OEVEUPBt 9MU SCHEME TO HWWE RRMMTMN 70 TNE OTY EN mamfLSMU BE SPECHC REtHRPWO THE M4MBS7>nSS TIC CLEICNTS OF TIC PROKSBI StSIEU. •r TIC cmr "A TIC AMI oosnoF » WRRjWTION SHAU MAIWAW THE MBBlUg t£» OF TIC SOE. AT TIC OPTMBf LEKL RM THE OmriH OF THE HKMOBaiCD OROWIK mMOSSEMB MX SHAU OONSBT OF AU OF TNE raUOatt 1. SEED MX SHAU OONSST OF Ml LESS INAM a 20 PER ACRE OF ROSE CLOtCR tk 20 PEK ACRE OF 2DRMI fESaC a 3 te PEK ACRE OF E SCWXX. CM CMLraiWSA d 4 te PR ACRE OF ACHU£A MLLERXM a, 3 te PEK ACRE OF ALWSUH fCARPET OF SMOIJ t _vSfc, pn ACRE OF OBRirnnurA f. naa ««« AMI r CF THB suasEcnoN MAY BE OMTTED ON LOMTKMS IWEKE THE AKEA BBM HYmuaULU) B HOT W9K£ ETTICK A PWUC STREET OR RESBENTIAL SIRUCTINESL ""-^ h. /TEM a OF TNB SUBSECTION MOT BE fMCUATED WTH A MmO«» nOMS BACTEKM AMI APPUED ORY EHW? BY 0RELW8 OR BR0MOCMS1MB BEFORE mOROSEBMa L AU SEED MATEKMIS 9MU BE TRAMyURIUI 79 7IC JOBSTTE W LNOPENED OONTAagRS »IW THE CAUFORMA JEPARTICNT OF FOOD AM) AOWULTIME CEKTRCAIMN TAS ATTAOCD TU OR PRNICD ON SAO CCNTAiCKa i M3N-PHYTD-7Q)SC IKTTMe AOENTS MAY BE AODED TO TIC mOKMEED SUMRY AT THE OSCRETXM OF TIC OONIRACTORL Z TYPE 1 UUUH APPLEP AT THE RATE OF HO LESS THAW 2000 te PER ACRE nPE • MJUH (STRAW MAY BE SUBSHIUIUt. AU OR PAffT. FOt mUKAUJCAUY APnjED nCK MATEIMl. wSf STRAIT (S USED TT MST BE AMMMED TO TIC SLOPE BY MEBHiMCAUY PUNCWW MO LESS 7HAN BOS OF THE STRAW WTO TNE sot. i FEKTUZEK O0N95TMe OF AMMNUI PHOSPHATE SUFA7E; I*-20-a WTH tar SbLPMJ? APPLED AT THE KATE OF BOO te PER ACRE AREMTD BE HKMOaEEDED SHAU BE PREPARED PRHR TD fflDROSEEDNB OK (. ROUBHEWM TIC SURFACE TO BE PLANTED BY AMY CR A OOMMATION OR TRAOrmLMNe SLOPES STEEPER THAN ftr h. HAnWOaaW AREAS OR fLATTa THAT ARE SUFFKBUIY Fmm£. a. AilMU AREAS THAT MU MOT MEAX UP USHO /TEMS a OR 6 ABOW 2. coHommto THE SOES SO THAT TT B SUTABLE FOR PLAMTMO art * ^S!S>fiL'»CSURFACES0EMaBTMC7OPW0V«)EAaA»*BUrNOr SATURATED SEU) BED. *• ^JSS""*' *• S""- AlOBMEIfTVPH AOyUSTMlri; UACHNB OR OONCRNO SMUC SOLS TD PROMCfil VMBU! OOMXnCNS FDR OROWTK fS^SSR {f^JUXL.^ MAWJWCD 70 PROWE A MOOROS OmTTH (WTI. "'''SCAPED OR. FDRAREHS WCIC HVOROSEESMe THE PgaMMNT LVOSCMPMA (WTI. IHE PROCCT IS OOWUTBI AMI AU BOMM •i\088\03\24\£PD2.DWG 3-12-02 1'4804 pn