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2011 purple code Mound Design <br />wrovw.SepticResaurce.com (vers 15.2) <br />Property Owner: Gonyea Homes Date: 12/6/2017 <br />Site Address: 420 Lakeview Parkway PID: 0611723320096 <br />Comments: Divert runoff coming toward system <br />instructions: = = enter data = adjust if desired = computer calculated - DO NOT CHANGE=! <br />i w bedroom Type Residential System <br />75fl GPD design flow <br />3) Yes Garbage disposal or pumped to septic 50% larger tank with multiple comp/tanks <br />2250 Gal Septic tank (code minimum) 2250 Gal Septic tank (design size / LUG req'd) <br />Tank options: none <br />5> 1 •Z GPD/ft2 mound sand Loading rate contour loading rate of 12 req's a min 62.5 ft. long rockbed <br />h, 10.0 ft rockbed width 63.0 ft rockbed length <br />71 3.0 ft lateral spacing 3.0 ft perforation spacing (maximum of 3 for both) <br />end feed manifold connection <br />slaterals 61.0 feet long 21.0 perfs / lateral 63 perfs total <br />(1 /2 a perf means the first perf starts at the middle feed manifold) <br />y 7/32 inch perfs at feet residual head gives fl.56 gpm flow rate per perforation <br />for this perf size 8t spacing, 8 pipe size on line 12, max perfs/lateral = 30 line #8 must be less -•> OK <br />n 4.0 doses per day (4 minimum) <br />gallons per dose (treatment volume) <br />2.00 5x <br />inti Z.00 inch diameter laterals must be used to meet 'Ax pipe volume" requirement <br />2.00 3x <br />i_,) 25 feet of 2.0 inch supply tine leads to =4 gallons of drainback volume <br />(Tip: "top feed" manifold to control the drainback) <br />14) 192 gallons TOTAL pump out volume (treatment + drainback) <br />ifeet vertical lift from pump to mound laterals, leads to a: <br />ir„ 36 GPM C 16 feet of head, Pump requirement (note: >50gpm may require an extra 3-6' of head) <br />17) 750 gal Dose tank (code minimum) 1300 gal Dose tank (design size / LUG req'd) at aiflgpi <br />leads to a <br />psi 7.5 inch swing on Demand float, or timed dosing of5.3 min ON (confirm pump rate with drawdown <br />(this delivers Average flow, =70% of Peak design flow}RIhrs OFF test and adjust as necessary) <br />19) 12 inches from bottom of tank to "Pump OFF" float <br />10, 20 inches from bottom of tank to "Pump ON" float, orF12 inches to "Timer ON" float if time dosed <br />�i 23 inches from bottom of tank to "Hi Level" float, or 33 inches to "Hi Level" float if time dosed <br />714 gallons reserve capacity (after High Level Alarm is activated) <br />