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S-P TESTING, INC. Steven B.Schirmers•MPCA Cert.No.627 <br /> 951 Katydid Lane NE•St. Michael, MN 55376•(763)497-3566 <br /> FAX(763)497-5011 <br /> State License#394 <br /> December 7,2010 <br /> r <br /> Bridget Hust ( 6, <br /> 820 S. Old Crystal Bay Rd. <br /> Orono, Henn. Co., MN <br /> A Compliance Inspection was completed for the existing on-site sewage treatment <br /> system located on this property. The system consists of 2-1000 gallon septic tanks, 1- <br /> 1000 gallon pumping chamber&a pressurized mound system with a 10'x 58'rock bed <br /> built in 1992. Soil boring#1 found mottled (redox features)at 1.7'below the ground <br /> surface. Soil boring#3 found the original soil at elev.96.8&the bottom of the rock bed <br /> at elev.98.6 leaving 1.8'of sand below the rock bed&a 3.5'separation from the bottom <br /> of the rock bed&redox features. Soil boring#2 found mottled soil at 2.3'below the <br /> ground surface. Soil boring#4 found the original soil at elev.97.0&the bottom of the <br /> rock bed at elev.98.6 leaving 1.6'of sand below the rock bed&a 3.9'separation from <br /> the bottom of the rock bed&redox features. This system is classified as in compliance <br /> with Minnesota Chapter 7080 rules. <br /> The tanks were pumped by Elmer J. Peterson Co. &were found to be compliant at this <br /> time. <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 recommended, <br /> due to adding more solids&fine solids passing through to the system. Recommend to <br /> divert iron filters out of the system, recommend to divert the water softner also if <br /> diverting the iron filter. Excessive amounts of soaps,antibacterial soaps, cleaning <br /> agents, shower cleaners used every shower&chlorine agents may kill the bacteria <br /> needed to treat septic effluent. Additives are not recommended. Recommend to pump <br /> &clean your tanks through the manhole by a certified pumper every 2 years. Check <br /> with your pumper to set up a schedule. <br /> This Certificate of Compliance is no guarantee that this system will continue to function <br /> indefinitely. <br /> Steven B.Schirmers <br /> 1 <br />