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S-P TESTING, INC.Steven B. Schirmers • MPCA Cert.No. 627 <br />951 Katydid Lane NE • St. Michael, MN 55376 • (612) 497-3566 <br />FAX (612)^97-5011 <br />State License #394 <br />February 21, 1998 <br />John Rappaport <br />3067 Farview Lane <br />Orono, Henn. Co., MN <br />This site has an existing on-site sewage treatment system classified as failed due to not <br />meeting a 3' separation from the bottom of the system and the saturated soil according <br />to city records. The tanks are a block type with the first tank being a cesspool which is <br />classified as an imminent health hazard and must be repaired or disconnected within 10 <br />months. <br />This site has very limited space available for a new on-site sewage treatment system. <br />The area proposed for the new system is the only area available. To use this area, the <br />old survey shows a drainage easement at the west end of the proposed site which is not <br />accurate. The new proposed easement is the actual drainage pattern. The change in <br />the drainage easement will require approval from the City of Orono. Approval will also <br />be needed for a 53' setback from a pond (possible wetland) which is connected to Lake <br />Minnetonka. Wetlands have a 75* setback and Lake Minnetonka has a 50' setback for <br />the on-site sewage treatment system. <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 />The soils on this site are SCS soils mapped - HbC - Hayden loam. The seasonally <br />saturated soils were located at 26" to 32" (mottled soil). Due to the seasonally saturated <br />soils, a Pressurized Mound System will need to be installed to treat septic effluent. The <br />bottom of the treatment area must be located at least 3' above the saturated soils. <br />J f ; r. <br />to • <br />1