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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 /> September 27, 2018 <br /> Peter Scherer <br /> 15 Orono Orchard Rd. <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 1- <br /> 1250 & 1-1000 gallon septic tanks, 1-1250 gallon pump tank & a pressurized mound <br /> system with a 10' x 74', built in 2001 for a 6 bedroom home. <br /> Soil boring #1 found mottled soil (redox features) at 1.7' into the original soil & the <br /> original soil at elev. 103.3 & the bottom of the rock bed at elev. 105.0 leaving 1.7' of <br /> sand below the rock bed & a 3.2' separation from the bottom of the rock & redox <br /> features. Soil boring #2 found mottled soil at 1.5' into the original soil & the original <br /> soil at elev. 103.7 & the bottom of the rock bed at elev. 105.0 leaving 1.3' of sand & a <br /> 3' separation. This system meets the required 3' separation from the bottom of the <br /> trenches & redox features & is classified as in compliance with Minnesota Chapter <br /> 7080 rules. <br /> The tanks were pumped by Kothrade Sewer, Water & Excavating & were found to be <br /> 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 <br /> kill the bacteria you need living in the system. Additives are not recommended. <br /> Recommend to pump & clean you tanks through the manhole by a certified pumper <br /> every 2 years. Check with your pumper to set up a schedule. <br /> This certificate of compliance is no guarantee that this system will continue to <br /> function indefinitely. <br /> Steven B. Schirmers <br />