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SP TESTING INC. <br />Steven B. Schirmers -951 Katydid Lane NF -St. Michael, MN 55376 <br />Cert. No 627 - State License #394 - Phone 763-497-3566 - Fax 763-497-5012 <br />www.sE!testing.wastewaterL@comcast.net - schirmerswastewater.com <br />July 6, 2022 <br />David Scott <br />1905 Heritage Dr. <br />Orono, MN <br />A Compliance inspection was completed for the existing on-site sewage treatment <br />system located on this property for the sale of the home. The system consists of a <br />pressurized seepage bed built in 1971. A Multi -Flo unit was added to the system on <br />12.30.1997 & the 12' x 501, 600sq.ft. seepage bed was pressurized. The system is <br />classified as a Type IV with a 500 gallon trash trap (plastic tank), 1 - 750 gallon <br />Multi -Flo Unit & 1-1500 gallon pump tank (plastic). <br />Soil boring #1 found no mottled soil (redox features) to 71, elev. 93.3 below the <br />ground surface & the bottom of the seepage bed at elev. 96.3 leaving a 3' separation <br />from the bottom of the rock bed & redox features. This system meets the separation <br />as designed from the bottom of the seepage bed & redox features & is classified as <br />in compliance with Minnesota Chapter 7080 rules. <br />The Multi -Flo has been serviced by Schirmers Wastewater Treatment Systems since <br />it was installed. Monitoring of the seepage bed has found no indication of hydraulic <br />overloading. The Multi -Flo Unit requires to be serviced 2 times a year at a cost of <br />$250.00 a year (2022 price). The seepage bed has to be monitored 1 time a year at a <br />cost of $50.00 a year (2022 price). These prices are subject to change. <br />The tanks were pumped by Elmer J. Peterson Co. & SP Testing which found the 500 <br />gallon plastic tank installed too deep & is collapsing & is classified as non- <br />compliant. This tank will need to be removed & replaced with a cement tank <br />matching the existing flow. A tank abandonment report will need to be completed <br />for this tank. The original design was to have a timer added at the 1500 gallon pump <br />tank, pumping 113 gal/every 6 hours. A time dose panel & an event counter will also <br />need to be installed. <br />The 750 gallon Multi -Flo unit & 1500 gallon pump tank are compliant. <br />