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2411purptecode Mound Design <br />www.SepticResource.cam (vers 15.2) <br />Property Owner: Stonewood LLC. <br />Date: 6/16/2018 <br />Site Address: Proposed Lot 5 <br />PID: 0211723230006 <br />Comments: Site B <br />instructions: E-7 =enter data = adjust if desired = computer calculated - DO NOT CHANGE! <br />bedroom Type <br />Residential System <br />750 GPD design flow <br />Yes Garbage disposal or pumped to septic 50% larger tank with multiple comp/tanks <br />4r 2250 Gal Septic tank (code minimum) <br />2250 Gal Septic tank (design size / LUG req'd) <br />Tank options: none <br />5) 1.2 GPD/ftz mound sand loading rate <br />contour loading rate of 712-1req's a min 62.5 ft. long rockbed <br />6 10.0 ft rockbed width 62.5 ft <br />rockbed length <br />7) 3.0 ft lateral spacing 3.0 ft perforation spacing (maximum of 3 for both) <br />end feed manifold connection <br />9) laterals 60.5 feet long <br />21.0 perfs / lateral 63 perfs total <br />(112 a perf means the first perf starts at the middle feed manifold) <br />9) 7132 inch perfs at feet residual head gives 0.56 gpm flow rate per perforation <br />for this perf size Et spacing, it pipe size on fine 12, max perfs/lateral = 30 line #8 must be less - OK <br />ire, 4.0 doses per day ( 4 minimum) <br />11 ) 188 gallons per dose (treatment volume) <br />2.00 5x <br />121 2.00 inch diameter laterals must be used to meet 'Ax pipe volume" requirement <br />2.00 3x <br />13feet of 2.0 inch supply line leads to ##### gallons of drainback volume <br />(Tip: "top feed" manifold to control the drainback) <br />14) ###### gallons TOTAL pump out volume (treatment + drainback) <br />151 feet vertical lift from pump to mound laterals, leads to a: <br />ib1 36 GPM @ ##### feet of head, Pump requirement (note: >50gpm may require an extra 3-6' of head) <br />17i 750 gal Dose tank (code minimum) 1250 gal Dose tank (design size / LUG req'd) at 25.49 gpi <br />leads to a <br />ig1 ###### inch swing on Demand float, or timed dosing of ##### min ON (confirm pump rate with drawdown <br />(this delivers Average flow, =70% of Peak design flow} ##### hrs OFF test and adjust as necessary) <br />1'1 12 inches from bottom of tank to "Pump OFF" float <br />2u7 ###### inches from bottom of tank to "Pump ON" float, or 12 inches to "Timer ON" float if time dosed <br />21 ###### inches from bottom of tank to "Hi Level" float, or ##### inches to "Hi Level" float if time dosed <br />22) ###### gallons reserve capacity (after High Level Alarm is activated) <br />