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Septic System Design <br />Additional Information <br />Property <br />Owner: Tim Skelly - Parcel #1 <br />Description of Waste Water Treatment System <br />This site has an existing on -site sewage treatment system which was installed in the 60's - 7o's. <br />A compliance inspection was performed and it has deemed that the old system doesn't meet <br />soil separation and the tanks do no pass either. The old tanks must be dug up, pumped, <br />abandonened, filled and new tanks and main line installed. <br />This new on -site sewage treatment system is designed for a Type 1, 5 bedroom home, Type 1 <br />system in accordance with the MPCA Chapter 7080 and local ordinances. <br />The soils on this site are loamy. The periodically saturated soils were located after going to a <br />depth of 14 and 17 inches. This will lead 12 inches of usable soil underneath the mound with a 2 <br />foot sand Gft, Therefore providing a 36 Inch separation for the treatment of effluent above the <br />periodically saturated soils. <br />Two 1250 gallon tanks will need to be installed along with a 1500 gallon pump tank to lift the <br />sewage to the treatment area. The power supply and switches must be located outside the <br />manhole and pumping chamber in a weather proof enclosure. A warning device must also be <br />installed with audiovisual alerts. The supply line must have drain back to the pumping chamber. <br />From the pump tank sewage will be pumped 33 feet to the mound. There will be 3- 2" pipes <br />each 3 feet apart inside the 10' by 62.5' rockbed. The mound will have a total footprint of 64' by <br />103' with 10 percent slope underneath it. <br />Ali tank manholes should be brought to grade upon completion of tank installation, inspection <br />{ports for the distribution boxes should also be at grade upon completion. <br />Keep all vehicles and construction equipment off septic area. Rutting and/or compacting the <br />soil will change the percolation rates and may lead to system failure. <br />Homeowner to verify all property lines. <br />Elevations are referenced to Bench Mark on the blacktop next to the door leading to the <br />downstairs. <br />Installer to verify all elevations, dimensions, and ensure proper fall to pipes. Pitch pump <br />chamber outlet to ensure complete drain back to pump chamber. <br />Establish turf to prevent erosion and freezing. <br />Ends Sup lic Service, LIC, 2010 Territorial Road I ph. 783-428-4+485 or infoftendeseW c.com 1 <br />