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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 />February 11, 2020 <br />WD Larson <br />1205 French Creek Or. <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 2- <br />1500 gallon septic tanks, 1-1500 gallon pump tank from 1989 & a 25' x 46' <br />pressurized seepage bed = 1250sq.ft. sized for a 6 bedroom home, built on 10-1-15. <br />The existing trenches were removed & backfilled with washed sand, then placed the <br />seepage bed. <br />There are 2 soil verifications, 1 by SP Testing, Inc. on 7-23-15 finding mottled soil <br />(redox features) at 72" & 1 by The City of Orono on 9-2-15 finding mottled soil at 74". <br />The bottom f the rock was found at 2.5' leaving a 3.5' separation from the bottom of <br />the system & redox features. This system meets the required 3' separation & is <br />classified as in compliance with Minnesota Chapter 7080 rules. Soil probing into the <br />system found the system to be dry, no sign of hydraulic overloading. <br />The tanks were pumped by Kothrade Sewer, Water & Excavating, Inc. & were found <br />to be compliant. <br />Nothing other than gray water (laundry, showers etc.) human waste & toilet tissue <br />should be disposed of into the septic tanks. Garbage disposals are not <br />recommended due to adding more solids & fine solids passing through into the <br />system. Iron filters are also not recommended & should be diverted out of the <br />system. Excessive amounts of soaps, antibacterial soaps, cleaning agents, shower <br />cleaners used every shower & chlorine agents may kill the bacteria you need living <br />in the system. Additives are not recommended. Recommend to pump & clean you <br />tanks through the manhole by a certified pumper every 2 years. Check with your <br />pumper to set up a schedule. IRON FILTERS MUST NOT BE PUT INTO THE SYSTEM. <br />This certificate of compliance is no guarantee that this system will continue to <br />function indefinitely. <br />Steven B. Schirmers <br />