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DocuSign Envelope ID: D8AA32DD-94F0-4A26-ACCF-EFE01 D862864 2011 purple code Mound Design www.SepticResource.com (vers 15.2) Property Owner: Regency Homes Date: 1/20/2022 Site Address: 2.925 Deer Run Trail, Orono PID: Comments: instructions: = = enter data adjust if desired = computer calculated - DO NOT CHANGE! 1)bedroom Type Residential System 2) 750 GPD design flow 3) No Garbage disposal or pumped to septic 4) 2500 Gal Septic tank (code minimum) 2500 Gal Septic tank (design size / LUG req'd) Tank options: none s) 1.2 GPD/ftz mound sand loading rate contour loading rate of 12 req's a min 62.5 ft. long rockbed 6) 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 8) 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) 9) 114" inch perfs at =feet residual head gives 0.74 gpm flow rate per perforation for this perf size £t spacing, ft pipe size on line 12, max perfs/lateral = 25 , line ##8 must be less > OK 10) 4.0 doses per day (4 minimum) 11) 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) 105 feet of 2.0 inch supply line leads to 18 gallons of drainback volume (Tip: "top feed" manifold to control the drainback) 14) 206 gallons TOTAL pump out volume (treatment + drainback) 15) 14 feet vertical lift from pump to mound laterals, leads to a: ire) 47 GPM @ 27 feet of head, Pump requirement (note, >50gpm may require an extra 3-6' of head) 17) 9250 gal Dose tank (code minimum) 1250 gat Dose tank (design size / LUG req'd) at 2b,00 gpi leads to a 18) 7,9 inch swing on Demand float, or timed dosing ofMhrs min ON (confirm pump rate with drawdown (this delivers Average flow, =70% of Peak design fEow) OFF test and adjust as necessary) 19) 12 inches from bottom of tank to "Pump OFF" float 20) 120 Jinche5 from bottom of tank to "Pump ON" float, or12 inches to "Timer ON" float if time dosed 21) 23 inches from bottom of tank to "Hi Level" float, or 33 inches to "Hi Level" float if time dosed 22) 652 gallons reserve capacity (after High Level Alarm is activated)