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t � � �7"P I GS I '��� �NC. Steven B. Schirmers • MPCA Cert.No. 627 <br /> 951 Katydid Lane NE • St. Michael, MN 55376 • (763) 497-3566 <br /> Fl�X (763)-497-5011 <br /> State License #394 <br /> ���� <br /> 5eptember 26, 2006 �'� �� � �� ��� <br /> #� � � p�cMrc t�a �( � <br /> �susaacrtso —c,;�:>'F <br /> �!4'ROY�B NI'I'fl CORRECTtOIV�M � <br /> John & Julie Lesser �'��ORRECTtSBQJAMI7' <br /> 165 Cristofori Circle �Cpp°�p1Q°`"�°��`�°"`�`�0R' '��`g���0���i���� <br /> M faN�tis�e�ail appticabb soptk aaa�iag cod�. <br /> Orono, Henn. Co., MN xw�+���+�+�����ty����*ro�������� <br /> �cseP rx���r oK�rrs,��r r,u.rta�ss <br /> A Compliance Inspection was completed for the existing on-site sewage treatment <br /> system located on this property. The system consists of 2-1300 gallon septic tanks, 1- <br /> 1300 gallon pumping chamber � a pressurized mound system with a 10' x 68' rock bed. <br /> The rock bed is hydraulically overloaded & is discharging in the northwest corner of the <br /> rock bed which is classified as an imminent health hazard & must be repaired or <br /> disconnected within 10 months or as determined by the City of Orono. <br /> �oil borings completed into the rock bed found no black soils above the rock which <br /> indicates the rock bed has not been overloaded for a long period of time. Long term <br /> overloading would allow soil to settle where the rock � sand meet. Soil boring #1 found <br /> mottled soil (redox features) at 20" below the surface & the bottom of the rock bed was <br /> found at elevation 89.8 & the original soil at elev.88.5 which leaves 1.3' of sand below <br /> the rock bed. Soil boring #2 found mottled soil at 28" below the surFace &the bottom of <br /> the rock bed at elev.89.7 & the original soil at elev.88.1 which leaves 1.5' of sand below <br /> the rock bed. This system meets a 3' separation from the bottom of the rock bed & the <br /> redox features & is classified as in compliance with Minnesota Chapter 7080 rules. Soil <br /> borings through the mound & soil probing along the downslope toe of the mound found <br /> fihe sand to be dry, no overloading. <br /> The proposal is a Multi Flo Class 1 <br /> Aerobic Wastewater Treatment System or a unit that is equal to the Multi-Flo that has <br /> positive filtration. The highly treated, filtered effluent produced by the Multi-Flo is over <br /> 95% free of the normal sewage contaminants that cause the progres�ive failure of <br /> conventional systems. The unit will be a 750 gal/day. A trash trap is installed in front <br /> of the Multi-Flo. The unit requires to be serviced 2 times a year which will be done by <br /> Schirmers Wastewater Treatment Systems, Inc. A 2 year service & parts warranty <br /> comes with the purcha�e of the unit. After that time, the homeowner is required to carry <br /> a Service Contract at $150.00 a year (2006 price). A report is sent to the homeowner, <br /> city, MPCA & Multi-Flo yearly. T,h� hi , i�-tr� thrivP R <br /> � <br /> 1 <br />