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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.sptestinzwastewater@comcast.net— schirmerswastewater.com <br /> July 11, 2018 <br /> Robert Innes <br /> 4720 North Arm Dr. <br /> Orono, MN <br /> A Compliance inspection was completed for the existing on-site sewage <br /> treatment system located on this property for the sale of the home. The <br /> system consists of 2-1000 gallon septic tanks, 1-1000 gallon pump tank & a <br /> pressurized mound system with a 10' x 51' rock bed, built in 1990 for a 4 <br /> bedroom home. <br /> Soil boring #1A found mottled soil (redox features) at 1.7' into the original <br /> soil & the original soil at elev. 92.7 & the bottom of the rock bed at elev. 93.6 <br /> leaving .9' of sand below the rock bed & a 2.6' separation from the bottom of <br /> the rock & redox features. Soil boring #2A found mottled soil at 1.3' into the <br /> original soil & the original soil at elev. 91.8 & the bottom of the rock bed at <br /> elev. 93.3 leaving 1.5' of sand & a 2,8" separation. This system meets the <br /> required 3' separation from the bottom of the trenches & redox features & is <br /> classified as in compliance with Minnesota Chapter 7080 rules. <br /> The tanks were pumped by Kothrade Sewer , Water & Excavating & were <br /> found to be compliant. <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 />