08-19-2019 Septic Design - Laserfiche WebLink

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INSPECTOR CHECKLIST - mound ztuw Tatem t.t. WELL setbacks: 20'- 50' to sewer line req's MDH pressure test form (5 psi for 15 min) 50' to everything 100' to drainfield with shallow well PROPERTY LINES setback: 10' to everything Road setback: platted: 10' prop line. Metes & bounds: out of road easement, or outer ditch. LAKE / BLUFF setback: 20' for bluff. Lakes: GD _, RD _, NE _. Protected wetland _ Building setbacks: 10' for everything, 20' for dispersal area. WATER LINE under pressure 10' to bed,tank It sewer line. (else sewer line > 12" below) El Sewer line & tank connection (no hard 90's, long sweep 90 or 2-45s, slope minimum 1" in 8' = 1%) (no depth req's, clean out every 100', Sch 40 pipe) El Septic tank and risers (water tight risers, baffles, insulated, proper depth, existing verified by pumping) Mfg 2650 gallons none Riser over outlet, riser over inlet or center, and 6"+ inspection pipe over any remaining baffles. No effluent filter & alarm Dose tank, risers and piping (water tight risers, insulated, proper depth, drainback) Mfg 1250 gallons Optional Time dosing of: dose pump 38 gpm 21 head VERIFY PUMP CURVE 4.1 min ON 8.5 hr OFF verify that installed "vertical lift from pump to laterals" is no more than design value of 14 feet float setting drop 5.4 inches at 29.1 gpi "DESIGNED" 3.7 inches approx float tether length 157.0 gal dose divided by gpi "INSTALLED" = inches float drop (field corrected LABEL pump requirements and drawdown on riser or panel Cam lock reachable from grade - 30" max. J -hook weep hole. Supply line access (no hard 90's) 2.0 inch supply pipe: Sch40, sloped 1/8"+, supported by 4" sch40 sleeve or compacted, and buried 6"+. splice box / control panel / electrical connections flow measurement: CT, ETM, time dosed, home water meter mound absorption area rough up mound rock dimensions 10.0 X 50.0 Sand lift depth 36 inches. (Jar test : 2" sand leaves < 1/8" silt after 30 min) ElAbsorption Sand beyond rock 0.0 upstope 17.0 downslope Bermed topsoil beyond rockbed 17 upsiope 22 sideslope 28 downslope cover depth of 12-18"+ VERIFY 3 laterals (1-2' from edge of rock) 2.00 inch pipe size (Sch40 pipe & fittings) 3.0 ft lateralspacing 8 1/4" inch perforations 3.0 ft perforation spacing Air inlet at end of laterals, and at top feed manifold if necessary. VERIFY clean outs (no hard 90's) 4" inspection pipe to bottom of rock, anchored VERIFY Abandon existing system - if necessary =Re -use existing tank certification monitoring plan and type welt abandonment form - if necessary