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rL . � <br /> 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 /> ������� <br /> December 20, 2002 ��1t�tl�' �� <br /> t3A �.w�..+r�„�,► <br /> ��� �* 'w"`""'"�"'.�.'y», <br /> ���� <br /> �A�l��NF������ <br /> New Thought Church of Religious Science �,�`"fi,p�'"�''D'�''�'����+aN►.w��.�„� <br /> 525 Leaf Street ���.��'���'"'� <br /> �`��,,Ai��`,� �aM�l' <br /> Orono, Henn. Co., MN �"�� <br /> This on-site sewage treatment system is designed for a church with 150 members at <br /> .14 gal/member = 21 gal/week,2 weddings per week, one on a Saturday and one on <br /> Sunday with no receptions for 150 people at 2.5 gal/each = 375 gal/day x 2 days = 750 <br /> gal/week, a caretaker house with 1 bedroom at 150 gal/day = 1050 gal/week & 2 <br /> meetings/week with 25 people at 2.5 gal/person x 2 meetings = 125 gal/week in <br /> accordance with the Minnesota Pollution Control Agency Chapter 7080 and local <br /> ordinances. The total water use/week = 1946 gallons divided by 7 days = 278 gal/day. <br /> To allow for future growth, the system is designed for 450 gal/day, typical of a 3 <br /> bedroom home. <br /> The soils on this site are a clay loam. The seasonalfy saturated soils were located at <br /> 20" to 38" (mottled soil - redox features). Due to the seasonally saturated soils, a <br /> Pressurized Mound System will need to be installed to treat septic effluent. The bottom <br /> of the rock must be located at least 3' above the saturated soils. <br /> The soils at a depth of 12" have a percolation rate of 5.7 mpi. <br /> The existing tanks will need to be abandoned, pumped and filled with soil. 2-1000 <br /> gallon capacity tanks will need to be installed at the church & 1-1500 gallon dual <br /> chamber at the caretaker house. The fianks will flow gravity to the 2000 gallon pumping <br /> chamber that will pump using a timer 4 times a day to the system. The larger lift station <br /> will allow for 3 day peak storage. <br /> 1 <br />