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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.sptestiniz.wastewater@comcast.net- schirmerswastewater.com <br /> April 22, 2016 <br /> Bob Mclanahan <br /> 3310 Watertown Rd. <br /> Orono, MN <br /> A Compliance inspection was completed for the existing on-site sewage <br /> treatment system located on this property. The system consists of 2-1300 <br /> gallon septic tanks, 1-1300 gallon pumping chamber & a pressurized mound <br /> system with a 10' x 62' rock bed built in 2004 for a 5 bedroom home. Soil <br /> boring #1 found mottled soil (redox features) at 1.3' into the original soil . <br /> Soil boring #1 found the original soil at elev. 100.3 & the bottom of the rock <br /> bed at elev.102.4, leaving 2.1' of sand below the rock bed & a 3.4' separation <br /> from the bottom of the rock bed & redox features. Soil boring #2 found <br /> mottled soil at 1.3' into the original soil. Soil boring #4 found the original soil <br /> at elev. 100.5 & the bottom of the rock bed at elev. 102.4 leaving 1.9' of sand <br /> below the rock bed & a 3.2' separation from the bottom of the rock bed & <br /> redox features. This system is classified as in compliance with Minnesota <br /> Chapter 7080 rules. <br /> The tanks were pumped & certified by Kothrade Sewer Water & Excavating. <br /> Nothing other than gray water (laundry, showers etc.) human waste & toilet <br /> tissue should be disposed of into the septic tanks. Garbage disposals are <br /> not recommended due to adding more solids & fine solids passing through <br /> into the system. Iron filters are also not recommended & should be diverted <br /> out of the system. Excessive amounts of soaps, antibacterial soaps, <br /> cleaning agents, shower cleaners used every shower & chlorine agents may <br /> kill the bacteria you need living in the system. Additives are not <br /> recommended. Recommend to pump & clean you tanks through the manhole <br /> by a certified pumper every 2 years. Check with your pumper to set up a <br /> schedule. <br /> This certificate of compliance is no guarantee that this system will continue <br /> to function indefinitely. <br /> Steven B. Schirmers <br />