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2011 purple code Mound Design <br />www.SepkicResource.eom Evers 1921 <br />Property Owner: Norton Homes <br />Site Address: 4725 Augusta Street <br />Comments: Primary Site <br />Date: 7/8/2020 <br />PID: 0611723320008 <br />ctions: = = enter data = = adjust if desired = = computer calculated - DO NOT CHANGE! <br />bedroom Type I <br />750 GPD design flow <br />Yes Garbage disposal or pumped to septic <br />2250 Gal Septic tank (code minimum) <br />1.2 GPD/ftz mound sand loading rate <br />Residential System <br />50% larger tank with multiple comp/tanks <br />2250 Gal Septic tank (design size / LUG req'd) <br />Tank options: none <br />contour loading rate of 12 req's a min 62.5 ft. long rockbed <br />10.0 ft rockbed width 63.0 ft rockbed length <br />3.0 ft lateral spacing 3.0 ft perforation spacing (maximum of 3 for both) <br />end feed manifold connection <br />laterals 61.0 feet long 21.0 perfs / lateral 63 Jperfs total <br />(1 /2 a perf means the first perf starts at the middle feed manifold) <br />9) 7/32 inch perfs at feet residual head gives 0.56 gpm flow rate per perforation <br />for this perf size lit spacing, & pipe size on line 12, max perfs/lateral = 30 , line #8 must be less OK <br />10) 4,0 doses per day (4 minimum) <br />1 i) 188 gallons per dose (treatment volume) <br />12) 2.00 inch diameter laterals must be used to meet "4x pipe volume" requirement <br />13) 35 feet of 2.0 inch supply line leads toF-6 gallons of drainback volume <br />(Tip: "top feed" manifold to control the drainback) <br />14) 144 gallons TOTAL pump out volume (treatment + drainback) <br />15) 8 feet vertical lift from pump to mound laterals, leads to a- <br />16) 36 GPM C 15 feet of head, Pump requirement (note: >50gpm may require an extra 3-6' of head) <br />17) 750 gal Dose tank (code minimum) 1254 gat Dose tank (design size / LUG req'd) at 25,49 Igpi <br />leads to a: I Optional Time dosing of: <br />inch swing on Demand float, (this delivers Average flow, =70% of Peak design flow) <br />5.4 min ON <br />19) 12 inches from bottom of tank to "Pump OFF" float 8.5 hrs OFF <br />20) 20 inches from bottom of tank to "Pump ON" float 12 inches to "Timer ON" float <br />21) 1 23 linches from bottom of tank to "Hi Level" float 33 inches to "Hi Level" float <br />22) 664 gallons reserve capacity (after High Level Alarm is activated -demand dosed) <br />