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�7-P TESTING� �NC. Steven B. Schirmers • MPCA Cert.No. 627 <br /> 951 Katydid Lane NE • St. Michaei, MN 55376 • (612) 497-3566 <br /> FAX (612)-497-5011 <br /> State License#394 <br /> July 21, 2000 <br /> Tony Eiden Company <br /> 4485 Bayside Road <br /> Orono, Henn. Co., MN <br /> This site has an existing pressurized mound system sized for a 3 bedroom home which <br /> is approximately 7 years old. Soil borings completed through the existing mound at the <br /> upslope corner of the rock bed found the top of the rock at e1.1032.5 and the bottom of <br /> the rock at 1031.4 and the original soil at 1029.9. The sand depth is 18" below the rock <br /> bed at the upslope edge of the rock bed. A quart jar test found 1/32" of sediment which <br /> is adequate for mound construction. The existing rock bed is 10' x 41'which wilf require <br /> an additional 10' x 21' for a 5 bedroom home. The existing tanks will need to be <br /> abandoned, pumped and filled with soil and new tanks installed. The existing well will <br /> also need to be abandoned. <br /> The existing house will be removed, no equipment travel is allowed west of the house <br /> for removal. The City of Orono requires no disturbed soil within 20' of the system. The <br /> addition to the system is very near the existing house which will need approval from the <br /> City. <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 locaf <br /> ordinances. <br /> The soils on this site are SCS soils mapped - KkB - Kilkenny loam. The seasonafiy <br /> saturated soils were located at 14" to 44" (mottled soil}. Due to the seasonally saturated <br /> soils, a Pressurized Mound System will need to be instalfed to treat septic effluent. The <br /> bottom of the rock must be located at least 3' above the saturated soils. <br /> The soils at a depth of 12" have a percofation rate of 6.0 mpi. <br /> 1 <br />