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G� 2011 purple code Property Owner: Mound Design Taryn Hyland www.SepticResource.com (vets 15.2) Date: 12/15/2017 Site Address: Lot2,81k.1,Phillips Woodland Terrace PID: Comments: 3rd Add., Orono instructions: = = enter data = adjust if desired = = computer calculated - DQ NOT CHANGE? l) bedroom Type Residential System 2) 750 GPD design flow 3) No Garbage disposal or pumped to septic a) 2500 Gat Septic tank (code minimum) 2500 Gal Septic tank (design size / LUG req'd) Tank options: none 5) 1.2 GPD/ft7 mound sand loading rate contour loading rate of 12 red's a min 62.5 ft. long rockbed 5) 10.0 ft rockbed width 62.5 ft rockbed length 7) 3.0 ft lateral spacing 3.0 ft perforation spacing (maximum of 3 for both) end feed manifold connection gl =laterals laterals 60.5 feet long 21.0 perfs / lateral 63 perfs total (1 /2 a perf means the first perf starts at the middle feed manifold) inch perfs at feet residual head gives 11.74 gpm flow rate per perforation for this perf size Et spacing, Et pipe size on tine 12, max perfs/lateral = 25-1, line #8 must be less > OK 10) 4.D doses per day (4 minimum) l t) 188 gallons per dose (treatment volume) 2.00 5x 12) 2.00 inch diameter laterals must be used to meet "4x pipe volume" requirement 2.00 3x 13) 40 feet of 2.0 inch supply line leads to =gallons of drainback volume (Tip: "top feed" manifold to control the drainback) 14) 195 gallons TOTAL pump out volume (treatment + drainback) ls,) 6 feet vertical lift from pump to mound laterals, leads to a: 16) 47 GPM @ 14 feet of head, Pump requirement (note: >50gpm may require an extra 3-6' of head) 17) 1250 gal Dose tank (code minimum) 1250 gal Dose tank (design size / LUG req'd) at 25.Oii gpi leads to a ra) 7.5 inch swing on Demand float, or timed dosing of4.1 min ON (confirm pump rate with drawdown (this delivers Average flow, =70% of Peak design flow)hrs OFF test and adjust as necessary) 14) 12 inches from bottom of tank to "pump OFF' float 20) 20 linches from bottom of tank to "Pump ON" float, orP33] inches to 'Timer ON" float if time dosed yl) 23 inches from bottom of tank to "Hi Level" float, or inches to "Hi Level" float if time dosed '.a) 652 gallons reserve capacity (after High Level Alarm is activated)