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. ��P T�STING� ���. 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 /> June 6� 2��2 � � <�S � ��, f�E� � � •rf� +� IU-cc � /G.�, '�� f��P/cct_�,! <br /> (T ,� <<TY OF ORONO <br /> 5F,PTIC PERMI N REVIEW <br /> tNSPECTOR <br /> pAT£ �-�-�'� PERMIT NO.�� <br /> Dave Kingman �ppA��p��%DMlTT6t� <br /> AAPROV�Q q/[�{�C(�RREC'tqOAig,�rTp'!'�p <br /> 1100 Knoll Manor Rd. ,����.coR�r,�Resuan�r <br /> Orono, Henn. Co., MN ��� �w.►�=��eae., <br /> in��I�e 1ultl�df�ppllQsb(t�ptie�nd sm�ing�wde. <br /> 1�9�'a�laeindlu�i1w�t aot specf�caif�r note�d 41 tYti wtiql� <br /> ��6W''i'N�ii tLi#��6T 6�t�1'lYiJls'��,{.� <br /> This site has an existing on-site sewage treatment system consisting of 2 1000 gallon <br /> septic tanks, a 1000 gallon pumping chamber and a pressurized mound system. The <br /> rock bed is hydraulically overloaded and the system is surface discharging which is <br /> classified as an imminent health hazard which must be repaired or disconnected within <br /> 10 months. <br /> Soil borings #1 & 2 found mottled soil at 1.5' & 2.3' below the ground surface. Soil <br /> borings #3 &4 were completed through the system which found original soil at 3.0' & <br /> 3.1' elev. 102.2 & 102.0. The bottom of the rock bed was found at elev. 103.0 which <br /> indicates there is 1.2' & 1.0' of sand below the rock bed, 1.5' of sand is required to meet <br /> � the required 3' separation from the bottom of the rock bed and the mottled soil. The <br /> sand was not hydraulically overloaded. The proposal is to remove the rock bed & <br /> approximately 6" of sand below the rock bed. The sand witl be replaced to elev. 103.7 <br /> (1.5' of sand) and replace with a 10' x 62' rock bed & distribution pipe. <br /> This on-site sewage treatment system is designed for a Type 1, five bedroom home, in <br /> accordance with the Minnesota Pollution Control Agency Chapter 7080 and local <br /> ordinances. <br /> h.R � <br /> yR. <br /> The system will need to be pumped fQr several weeks prior to repair. A large backhoe <br /> must be used to remove the soil to prevent travel over the mound. <br /> The existing tanks may be used if water tight and upon approval from the local <br /> Inspector. <br /> 1 <br />