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2011 purple code Mound Design <br />www.5epticResourre.com (vers 15.2) <br />Property Owner: Hendel Homes Date: 1/7/2020 revised <br />Site Address: 1775 Fox Street PID: 0311723440007 <br />Comments: Test holes and elevation by Gronberg & Associates <br />instructions: = = enter data = adjust if desired = = computer calculated - DO NOT CHANGE! <br />1) bedroom Type �I Residential System <br />2) 750 GPD design flow <br />3) Yes Garbage disposal or pumped to septic 50% larger tank with multiple comp/tanks <br />4) 2250 Gal Septic tank (code minimum) 2250 Gal Septic tank (design size / LUG req'd) <br />Tank options: none <br />s) 1.2 GPD/ft2 mound sand loading rate contour loading rate of =req's a min 62,5 ft. long rockbed <br />6) 1Q.Q ft rockbed width 62.5 ft 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 />s! laterals 60,5 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 />7132 inch perfs at feet residual head gives 0.56 gpm flow rate per perforation <br />for this perf size & spacing, Ft pipe size on line 12, max perfs/lateral = 30 line #8 must be less --> OK <br />iti) 4.0 doses per day ( 4 minimum) <br />gallons per dose (treatment volume) <br />2.00 5x <br />12) 2.00 inch diameter laterals must be used to meet 'Ax pipe volume" requirement <br />2.00 3x <br />13) 200 feet of 2.Q inch supply lime leads to 34 gallons of drainback volume <br />(Tip: "top feed" manifold to control the drainback) <br />ia) 222 gallons TOTAL pump out volume (treatment +drainback) <br />1s) 15 feet vertical lift from pump to mound laterals, leads to a: <br />16) 36 GPM @ 29 feet of head, Pump requirement (note: >50gpm may require an extra 3-6' of head) <br />17) 750 gal Dose tank (code minimum) 1250 gal Dose tank (design size / LUG req'd) at 25.49 gpi <br />leads to a <br />18) 8.7 inch swing on Demand float, or timed dosing of6.min ON (confirm pump rate with drawdown <br />F9�1 (this delivers Average flow, =70% of Peak design flow)hrs OFF test and adjust as necessary) <br />)9) 12 inches from bottom of tank to "Pump OFF" float <br />20) 21 inches from bottom of tank to "Pump ON" float, orP34 <br />inches to "Timer ON" float if time dosed <br />21) 24 inches from bottom of tank to "Hi Level" float, or inches to "Hi Level" float if time dosed <br />22) 638 gallons reserve capacity (after High Level Alarm is activated) <br />