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07/30/2069 21:14 7634975611 SPTESTINGINC PAGE 02/69 <br />� �w�' T'�S �T'/�C�, INC. Steven s. s�r,�m,a� • nnPCA cart.rvo. s2� <br /> 951 Katydid Lane NE • St. Michael, MN 55376 • (763) 49?,3566 <br /> FAX (�63) 497�5011 <br /> State License #394 <br /> � �� <br /> July 29, 2009 � <br /> Dave Kingman ��� <br /> 1100 Knoll Manor Rd. <br /> Orono, Henn. Co., MN <br /> A Compliance Inspection was completed for the existing on�site sewage treatment <br /> sy�ttem located on this property. The system consists of 2-1300 gallon sepfic tanks, 1- <br /> 1300 gallon pumping ahambe�& a pressurized mound system with a 10' x fi2" rock bed <br /> rebuilt in 2002. The mound system was originally built in 1991. In 2002 the rock bed <br /> was hydraulically overloaded. The rockbed & approximately 6" of sand were removed <br /> 8�the rockbed was reconstructed. Soil boring #1 found moitJed (redox�tures) at 1.7' <br /> below the ground surFace. Soil boring #3 found the original soil at elev.102.2, 3.7' & <br /> the bottom of the rock bed at elev.104.0 leaving 1.8' of sand below the rock bed 8�a <br /> 3.5' separation from the bottom of the rock bed & redox features. Soil boring #2 found <br /> mottled soil afi 2.3' below the ground surface. Soil boring#4�Found the original soil at <br /> elev.102.0. 3.8' &fihe bottom of fhe rock bed at elev.104.0 leaving 2' of sand b�low the <br /> rock bed & a 4.3 separation from the bottom of the roak bed & redox features. This <br /> system is classified as in compliance wi#h Minnesota Chapter 7080 rule�. There was <br /> no evidence of the system being hydraulically overloaded at the time af the inspection. <br /> The tanks were�pumped by �Ime�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 sep#ic tanks. Garbage disposals are not recommended, <br /> due to adding more solids &fine solids passing through to fihe system. Recommend to <br /> divert iron Trlters out of the system, recommend to divert the water softner also if <br /> diverting the iron fllter. Excessive amounfi� of soaps, antibacfierial soaps, cleaning <br /> agerrts, shower cleaners used every shower�ch�orine agents may kill the bacteria <br /> needed to treat septic effluent. Additives are nofi recommended. Recommend to pump <br /> &clean your tanks through the manhole by a certified pumper �very 2 years. Check <br /> with you�pumper to set up a schedule. <br /> This Certificate.of Complian�e is no guarantee that this system will continue to function <br /> indefinitely. <br /> �z�2�' • � <br /> Steven B. Schirmers <br />