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SP TESTING /NC. <br />Steven B. Schirmers -951 Katydid Lane NE -St. Michael, MN 55376 <br />Cert. No 627 - State License #394 - Phone 763-497-3566 - Fax 763-497-5011 <br />www.sptesting-wastewater'-@comcast.net schirmerswastewater.com <br />September 12, 2018 <br />Robert Carlson <br />4485 Bayside Rd. <br />Orono, Henn. Co., MN <br />This site has an existing on-site sewage treatment system which is hydraulically <br />overloaded & will need to be repaired. The existing tanks are old & non compliant <br />(pumped 8-14.18) & will need to be abandoned, pumped & filled with soil & new <br />tanks installed. <br />This onsite sewage treatment system is designed for a Type 1 system, Type 1, 4 <br />bedroom home in accordance with the Minnesota (Pollution Control Agency chapter <br />7080 & local ordinances. <br />The soils on this site are a clay loam. The seasonally saturated soil, mottled soil <br />(redox features) were present at a depth of 22" to 32". A pressurized mound system <br />will be installed. The bottom of the treatment area must be located at least 3' above <br />mottled soil. <br />A pumping chamber will need to be installed to lift the effluent to the treatment area. <br />The power supply & switches must be located outside the manhole & pumping <br />chamber in a weather proof enclosure. A warning device must be installed with a <br />light R sound device, this is in case of a pump failure. <br />The manifold & supply line must have back drainage to the pumping chamber. Be <br />sure the rock & sand fill material are clean. The sod layer below the entire mounded <br />area must be turned over, just break up the sod. <br />All property lines must be located prior to installation. <br />If the tanks have less than 2' of cover, the lids, risers & maintenance hole covers <br />must be insulated to a value of R10. <br />