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2011 purple code ,Mound Design <br />unnnwr Conti..bet..,�........ <br />Property Owner: Norton Homes <br />Site Address: 4665 St. Andrews Street <br />Comments: Lower Rock bed <br />Date: 8/14/2018 <br />PID: 0611723310012 <br />instructions: = = enter data = adjust if desired = = computer calculated - DO NOT CHANGE! <br />1) bedroom Type Residential System <br />2) 375 GPD design flow <br />3) Yes Garbage disposal or pumped to septic 50% larger tank with multiple camp/tanks <br />4) L JGat 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 12 req's a min 31.3 ft. long rockbed <br />6) 10.0 ft rockbed width 32.0 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 />8) laterals 30.0 feet long 11.0 perfs / lateral 33 perfs 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 It spacing, Et 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 />11) 94 gallons per dose (treatment volume) <br />2.00 5x <br />12) 2.00 inch diameter laterals must be used to meet "4x pipe volume" requirement <br />j�� 2.00 3x <br />13) �Jfeet of 2.0 inch supply line leads to ##### gallons of drainback volume <br />(Tip: "top feed" manifold to control the drainback) <br />14) ###### gallons TOTAL pump out volume (treatment + drainback) <br />15) feet vertical lift from pump to mound laterals, leads to a: <br />16) 19 GPM C ##### feet of head, Pump requirement (note: >50gpm may require an extra 3-6' of head) <br />17) 375 gal Dose tank (code minimum) 1750 gal Dose tank (design size / LUG req'd) at 25.49 gpi <br />leads to a <br />18) ###### inch swing on Demand float, or timed dosing of ##### min ON (confirm pump rate with drawdown <br />(this delivers Average flow, =70% of Peak design flow) ##### hrs OFF test and adjust as necessary) <br />19)inches from bottom of tank to "Pump OFF" float <br />20 iu <br />inches from bottom of tank to "Pump ON" float, or 12 inches to "Timer ON" float if time dosed <br />21) inches from bottom of tank to "Hi Level" float, or ##### inches to "Hi Level" float if time dosed <br />22) ###### gallons reserve capacity (after High Level Alarm is activated) <br />