04-22-2021 4625 Saint Andrews Street revised design_STAMPED

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2o11purple code Mound Design wvwJ.SepticResource.eom (vers 19.2) Property Owner: Gordon James Date: 2/8/2021 Site Address: 4625 Saint Andrews Street PID: 0611723320013 Comments: Primary site instructions: = = enter data 0 = adjust if desired = computer calculated - DO NOT CHANGE! 1)bedroom Type Residential System 2) 750 GPD design flow 3) Yes Garbage disposal or pumped to septic 50% larger tank with multiple comp/tanks 4) 2250 Gal Septic tank (code minimum) 2250 Gal Septic tank (design size / LUG req'd) Tank options: Multiple tanks or compartments req'd 5) 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 F63 perfs total (1 /2 a perf means the first perf starts at the middle feed manifold) 9) 7/32 inch perfs at feet residual head gives 0.56 gpm flow rate per perforation for this perf size 6t spacing, i* pipe size on line 12, max perfs/lateral = 30 , line #8 must be less > OK 30) 4.0 doses per day (4 minimum) 11) 188 gallons per dose (treatment volume) 12) 2.00 inch diameter laterals must be used to meet "4x pipe volume" requirement 13) 255 feet of 2.6 inch supply line leads to43 gallons of drainback volume (Tip: "top feed" manifold to control the drainback) 14) 231 gallons TOTAL pump out volume (treatment + drainback) u) 1 28 Ifeet vertical lift pump to mound laterals, leads to a: 16) 36 GPM @ 44 feet of head, Pump requirement (note: >50gpm may require an extra 3-6' of head) 17) 750 gal Dose tank (code minimum) 125D gal Dose tank (design size / LUG req'd) at 25,49 gpi Leads to a: Optional Time dosing of: )8) 9.1 inch swing on Demand float, (this delivers Average flow, =70% of Peak design flow) 6.4 min ON 19) 12 inches from bottom of tank to "Pump OFF" float 8.5 hrs OFF 20) 1 21 linches from bottom of tank to "Pump ON" float 12 inches to "Timer ON" float ?�)1 24 linches from bottom of tank to "Hi Level" float 34 inches to "Hi Level" float 22) 638 gallons reserve capacity (after High Level Alarm is activated -demand dosed)