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Home My WebLink AboutSW8040619_COMPLIANCE_20040907STORMWATER DIVISION CODING SHEET POST -CONSTRUCTION PERMITS PERMIT NO. SW��1Q`� DOC TYPE ❑ CURRENT PERMIT ❑ APPROVED PLANS ❑ HISTORICAL FILE COMPLIANCE EVALUATION INSPECTION DOC DATE YYYYMMDD Q�y STORMWATER DIVISION CODING SHEET PERMIT NO. DOC TYPE ❑ FINAL PERMIT ❑ MONITORING REPORTS ❑ APPLICATION ❑ COMPLIANCE ❑ OTHER DOC DATE ❑ YYYYM M DD Burger King Camp Lejeune 917l2004 (REVISED) Storm Drainage System Calculations vement "C" I Turf C. Roof "C" 0.95 1 0.3 1 Design Storm: 10-Year n" Value 0.012 Inlet Tributery Areas acres Total Area Cumulative Total Area Composite ..C. Factor Flow Time (min) Total (min) Intensity " I. inlhr j'Ruoff ace s Runoff Roof cfs Runoff Total cisC19 Slope % Velocity (fps) Pipe Size in From To Paved Turf Roof Calc. Selected G18 0.01 0 0 0.01 0.01 0.95 - 5.00 7.03 7 0 0.07 0.50 3.47 2.98 12,00 C18 C11 0.01 0 0 0.01 0.02 0.95 0.10 5.10 7.02 3 0 0.13 0.50 3.47 3.87 12.00 C11 C12 0.5 0.04 0 0.54 1 0.56 0.90 0.24 1 5.34 7.00 3.54 1 0 3.54 1 0,50 4.03 13.22 15,00 C12 FES 1 0.05 0 0 0.05 0.61 0.91 0.08 5.42 1 6.91 3.83 0 3.83 2.50 9.00 10.06 15.00 C12 FES 2 0.61 0.91 0.08 5.42 6.91 3.83 0 3.83 1.00 5.69 11.95 15,00 C13 C14 0.18 0 0 0.18 0.18 0,95 - 5.00 7.03 1.20 0 1.20 0.50 3.47 8.82 12.00 C14 C15 0.04 0.005 0 0.045 0.23 0.94 0.28 5.28 6.95 1.46 0 1.46 0.50 3.47 9.49 12.00 C15 C16 0.05 0 0 0.05 0.28 0.94 0.28 5.57 6.87 1.77 0 1.77 0.50 3.47 10.20 12.00 CI 6 SDMH 2 O.07 0.02 0 0.09 0.37 0.91 0.19 5.76 6.82 2.25 0 2.25 0.50 3.47 11.16 12.00 0.23 5.99 FES 3 SDMH 1 0.32 0.09 0 0.41 0.41 0.81 - 5.00 7.03 2.33 0 2.33 1.00 4.91 9.92 12.00 SDMH 1 SDMH 2 0 0 0 0 0.41 0.81 0,06 5.06 7.01 2.32 0 1 2.32 0.16 2.28 13.97 15.00 0.39 5.45 CI 7 SDMH 2 O.09 0.005 0 0.095 0.10 0.92 - 5.00 7.03 0.61 0 0.61 1.00 4.91 6.01 12.00 SDMH 2 C8 1 0 0 0.05 0.05 0.92 0.87 0.41 5.99 6.75 5.39 0 5.39 0.50 4,55 15.48 18.00 CB 4 CB 3 0.1 0.24 0.065 0.405 0,41 0.57 - 5.00 7,03 1.63 0 1.63 0.70 4.11 9.28 12.00 CB 3 CB 2 0.04 0.04 0.03 0.11 0.52 0.61 0.19 5.19 6.98 2.18 0 2.18 0.70 4.11 10.34 12.00 CO 2 CB 1 0.05 0.04 0.03 0.12 0.64 0.63 0.23 5.43 6,91 2.77 0 2.77 0.70 4.11 11.33 12.00 C13 1 FES 4 0.33 0.38 0.065 0.775 2.33 0.73 0.69 6.68 6.57 1 11.12 0 11.12 0.75 6.17 18.82 21.00 C6 1 FES 5 2.33 0.73 0.69 6.68 6.57 11.12 0 11.12 0.50 5,04 20.31 21,00 0.57 0.04 0 1.27. 0.82 0.24 Burger King Camp Lejeune 9/7/2004 (REVISED Storm Drainage System Calcuiatior Design Storm: Inlet Length (ft) Grate Elevation Elevation Depth Comments From To influent effluent M Ci 9 CI 8 20.00 35.00 - 32.56 2.44 C18 Ci 1 51.00 35.00 32,46 32.36 2.64 Cl1 Cl2 20.00 1 35.00 32.11 32.01 1 3.00 CI 2 FES 1 25.50 35.00 31.91 31.71 3.30 To Retention Pond NO,1 31.07 FES NO. 1 INV. Cl 2 FES 2 50,25 35.00 34.00 33.50 3.30 Pond Bypass to FES NO.2, Weir Wall 34.00 33.00 FES NO.2 INV. C13 C14 59.00 36.30 - 33.30 3.00 C14 CI5 59.00 37.70 33.01 32.91 4M CI 5 CI6 39.25 37.90 32.61 32.51 5.39 CI 6 SDMH 2 48,00 37.20 32.31 32.21 4.99 31.97 Into SOMH 2 FES 3 SDMH 1 16.75 34.50 - 34,50 0.00 SDMH 1 SDMH 2 53.25 37.65 34.33 33.79 3.86 Existing 15" RCP 33.70 Into SDMH 2(using existing 15" RCP Culvert CI 7 SDMH 2 120.00 36,83 - 33.83 3,00 SDMH 2 CB 1 189.00 37.75 32.63 31.87 5.88 Influents from CI 6, CI 7, and CB 1 CG 4 CB 3 48.00 34.50 - 31.29 3.21 CB 3 CB 2 57.00 33.90 30.95 30.85 3.05 CB 2 CB 1 110.00 33.90 30.46 30,36 3.55 CB 1 FES 4 62.00 33.90 30.93 4.42 Inv. In from SDMH 2 29.59 29.49 Inv, In from CB 2 - Inv. Out To Retention Pond NO. 2 29.02 FES NOA INV. CB 1 FES 5 34.00 33.90 32.00 31.50 2.40 Pond Bypass to FES NOA, Weir Wall @ 32,00 31.33 FES NO.5 INV. Project: Burger King Camp LeJeune Marine Corps Base Jacksonville, NC Date: 9/7/2004 (REVISED) Storm Water Retention Infiltration Basin Basin #1 Drainage Area (ac) Impervious Area (ac) Percent Impervious Pond Depth (ft) Use 3' deep pond, 85% TSS Removal From Chart, SA/DA = Minimum Required Surface Area (sf) SA/DA x DA x 43,560 = Minimum Required Volume (cf) Rv = 0.05 + 0.009 x I, where I = % impervious Vol. = 1" x Rv x DA x 43560 Storage Provided: Total Storage (CF) Surface Area Provided (sf) Volume Provided (cf) Soil Characteristics Average Infiltration Rate Water Table Depth 3.05 1.485 48.7% 3 4.18% r 5554 0.4883 5407 Contour Area Storage/ft. 29 960 1650 30 2340 3119.5 31 3899 4756.5 32 5614 9526 5614 9526 8.4 in.lhr Refer to Attached S&ME Report None encountered during test at min. depth of boring 11'. Anticipated High Water Table at 5' below grade. Maximum anticipated elevation is 5' below average basin site elevation of 32, or 27'. t`I- t rl y 1 Project: Burger King Camp LeJeune Marine Corps Base Jacksonville, NC Date:9/7/2004 REVISED Storm Water Retention Infiltration Basin Basin #2 Drainage Area (ac) Impervious Area (ac) Percent Impervious Pond Depth (ft) Use 3' deep pond, 85% TSS Removal From Chart, SA/DA = Minimum Required Surface Area (sf) SA/DA x DA x 43,560 = Minimum Required Volume (cf) Rv = 0.05 + 0.009 x I, where I = % impervious Vol. = 1" x Rv x DA x 43560 Storage Provided: Total Storage (CF) Surface Area Provided (sf) Volume Provided (cf) Soil Characteristics Average Infiltration Rate Water Table Depth 0 0.77 0.57 74 % 3 6.26% 2100 0.716 2002 Contour Area Storage/ft. 31 228 511.5 32 795 1121.5 33 1448 1811 34 2174 3444 2174 3444 i 5 ,3 1 o-a1--"L-4 ,.21rin./hr ' Refer to Attached S&ME Report Encountered during test at min. depth of boring 4,67' Pocket of ground water encountered due to a perched water condition as a result of the cemented sands in the upper 3' of the basin area. Anticipated High Water Table at 5' below grade. Maximum anticipated elevation is 5' below average basin site elevation of 34.5, or 30.5'.