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Home My WebLink AboutSW8970241_COMPLIANCE_19971208STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW DaC TYPE ❑CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE COMPLIANCE EVALUATION INSPECTION DOC DATE `Qg YYYYMMDD INFILTRATION BASIN ANALYSIS PROJECT NAME: Boardwalk RV Park DRAINAGE BASIN: Bogue Sound SITE AREA: 513572 SF IMPERVIOUS AREA CALCULATION BUILDINGS PARKING/ASPHALT CONCRETE OTHER FILENAME: S:IWQSIINBASIN1970241.WK1 PROJECT #: 970241 DATE: CLASS: SA REVIEWER: art DRAINAGE AREA: 447779 SF 150 lots a 500 TOTAL % IMPERVIOUS= 35.7283392 % RV= ELEVATION OF SEASONAL HIGH WATER TABLE REPORTED HYDRAULIC CONDUCTIVITY SURFACE AREA OF BASIN BOTTOM SURFACE AREA AT STORAGE ELEVATION BOTTOM ELEVATION OF BASIN STORAGE ELEVATION VOLUME / DEPTH / DRAWDOWN CALCULATION TOTAL VOLUME TO INFILTRATE TOTAL VOLUME AVAILABLE DEPTH OF RUNOFF TIME TO DRAWDOWN 4686 SQUARE FEET 79222 SQUARE FEET 1076 SQUARE FEET 75000 SQUARE FEET 159984 SQUARE FEET .05 + .009 (1)= 0.37155505 8.33 FEET MSL 0.15 CF/HR/SF 17000 SQUARE FEET 21275 SQUARE FEET 10.5 FEET MSL 13 FEET MSL 45293 CF (106,656-61363) 47843.75 CUBIC FEET 2.366715 FEET 18.76225 HOURS MUST BE <120 COMMENTS Volume and drawdown are (not) within Design Requirements. 08-Dec-97 INFILTRATION BASIN ANALYSIS PROJECT NAME: Boardwalk RV Park DRAINAGE BASIN: Bogue Sound SITE AREA: 513572 SF IMPERVIOUS AREA CALCULATION 155 lots rr 500 sf per lot PARKING/ASPHALT Clubhouse % IMPERVIOUS= 35.1253632 % ELEVATION OF SEASONAL HIGH WATER TABLE REPORTED HYDRAULIC CONDUCTIVITY SURFACE AREA OF BASIN BOTTOM SURFACE AREA AT STORAGE ELEVATION BOTTOM ELEVATION OF 13ASIN STORAGE ELEVATION VOLUME / DEPTH / DRAWDOWN CALCULATION TOTAL VOLUME TO INFILTRATE TOTAL VOLUME AVAILABLE DEPTH OF RUNOFF TIME TO DRAWDOWN FILENAME: S:IWQSIINBASIN1970241.WK1 PROJECT #: 970241 DATE: CLASS: SA REVIEWER: ari DRAINAGE AREA: 447779 SF 77500 SQUARE FEET 74022 SQUARE FEET 5762 SQUARE FEET SQUARE FEET TOTAL 157294 SQUARE FEET RV= .05 + .009 (1)= 0.36612827 8.33 FEET MSL 0.15 CF/HR/SF 17000 SQUARE FEET 21275 SQUARE FEET 10.5 FEET MSL 13 FEET MS1, 43493 CF `(Mk5 �63k 47843.75 CUBIC FEET 2.272658 FEET 18.76225 HOURS MUST BE <120 COMMENTS Volume and drawdown are (not) within Design Requirements. 20-Aug-98