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E.S.D. BUS FACILITY <br /> DETENTION TANK CALCULATIONS <br /> SUMMARY OF INPUT ITEMS <br /> 1) TYPE OF FACILITY: TANK <br /> P.) TANK DIAMETER(ft) , STORAGE DEPTH(ft) : 8.00, 4.25 <br /> 3) VERTICAL PERMEABILITY(min/in) : .00 <br /> 4) PRIMARY DESIGN HYDROGRAPH FILENAME: 100yd <br /> 5) PRIMARY RELEASE RATE(cfs) : 2.65 <br /> 6) NUMBER OF TEST HYDROGRAPHS: 2 <br /> TEST HYD 1 FILENAME: lOyd TARGET RELEASE(Cfs) : 1.29 <br /> TEST HYD 2 FILENAME: 2yd TARGET RELEASE(cfs) : .25 <br /> 7) NUMBER-OF-ORIFICES, RISER-HEAD(ft) , RISER-DIAM(in) : 2, 4.25, 18 <br /> 8) ITERATION DISPLAY: NO <br /> BOTTOM ORIFICE: ENTER Q-MAX(cfs) <br /> 0.29 <br /> DIA.= 2.28 INC14ES <br /> TOP ORIFICE: ENTER []EIGHT(f t) <br /> 3.2 <br /> DIA.= 9.22 INCHES <br /> PERFORMANCE: INFLOW TARGET-OUTFLOW ACTUAL-OUTFLOW PK-STAGE STORAGE <br /> DESIGN HYD: 4.29 2.65 2.64 4.24 13055 <br /> TEST HYD 1: 2.88 1.29 .57 3.26 11340 <br /> TEST HYD 2: 1.89 .25 .25 3.10 6340 <br /> SPECIFY: D - DOCUMENT, R - REVISE, F. - ADJUST ORIF, E - ENLARGE, S - STOP <br /> e <br /> ENLARGEMENT OPTION: ALLOWS FOR INCREASING STORAGE AT A SPECIFIED <br /> STAGE HEIGHT, TO PROVIDE A FACTOR OF SAFETY. <br /> ENTER: STORAGE-INCREASEW , STAGE-HEIGHT(ft) <br /> 45 4.25 <br /> PERFORMANCE: INFLOW TARGET-OUTFLC.- ACTUAL-01"i FLOW PK-STAGE STORAGE <br /> DESIGN HYD: 4.29 2.65 1 .13 3.37 16837 <br /> TEST HYD 1: 2.88 1.29 .25 3.19 15720 <br /> Ti-T HYD 2: 1.89 .25 .25 3.06 6360 <br /> Large diameter detention pipe r:.11 require 16,837 cf of storage. <br /> STRUCTURE DATA: R/D TANK (FLAT GRADE) <br /> RISER-HEAD TANK-DIAM STOR-DEPTH TANK-LENGTH STORAGE-VOLUME <br /> 4.25 FT 8.00 FT 4.25 FT 698.4 FT 18948 CU-FT <br /> DOUBLE ORIFICE RESTRICTOR: DiA(INCHES) HT(FEET) Q-MAX(CFS) <br /> BOTTOM ORIFICE: 2.28 .00 .290 <br /> TOP ORIFICE: 9.22 3.20 2.360 <br />