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SP TESTING INC. <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 /> August 3, 2015 RECEIVED <br /> AUG 0 4 2015 <br /> Carolyn Kozloski <br /> CITY OF ORONO <br /> 405 old Crystal Bay Rd. -5. <br /> Orono, MN <br /> A Compliance inspection was completed for the existing on-site <br /> sewage treatment system located on this property. The system <br /> consists of 1- 1500 gallon split reversed septic tank (500 gallon trash <br /> trap-1000 gallon pump chamber pump #1), a 500 gallon Multi-Flo <br /> Wastewater Treatment system, 1-1500gallon pumping chamber (pump <br /> #2) & a 900sq.ft seepage bed built on 8-3-03. The system was <br /> designed as a Performance System under Minnesota Chapter <br /> 7080.0179 with a 1' to 1.5' separation from the bottom of the seepage <br /> bed & redox features. The system is time dosed and cannot receive <br /> more than 450 gal/day. <br /> Soil boring #1 found mottled soil (redox features) at 2.3' below the <br /> surface, elev. 97.5 & the bottom of the rock bed at elev. 98.8 leaving a <br /> 1.3' separation. Soil boring #2 found mottled soil at 2.8', elev. 96.7 <br /> below the surface & the bottom of the seepage bed at elev. 98.8 <br /> leaving a 2.1' separation. This system meets the required separation <br /> from the bottom of the seepage bed & redox features & is classified as <br /> compliant. <br /> This system has an operating permit through the City of Orono which <br /> requires service of the Multi-Flo, Monitoring the drainfleld for ponding <br /> & Fecal Coliform testing yearly with results < 2000mpn/100m1. The <br /> system has been monitored since it was installed by Schirmers <br /> Wastewater Treatment Systems, Inc. which has found no ponding in <br /> the seepage bed & fecal coliform results at < 1 mpn/100m1 to <br /> 10mpn/100m1. <br />