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w a <br /> S�P TESTING' �NC. Steven B. Schirmers • MPCA Cert.No. 627 <br /> 951 Katydid Lane NE • St. Michael, MN 55376 • (612) 497-3566 <br /> FAX (612) 497-5011 <br /> State License #394 <br /> Revised March 18, 1997 <br /> October 28, 1996 <br /> George Adams 600 Big Island <br /> Tom Robb 570 Big Island <br /> Jim Figger 580 Big Island <br /> Orono, Henn. Co., MN <br /> A site evaluation was completed on these properties for the existing on-site sewage <br /> treatment systems supporting the existing cabins. The existing systems are classified <br /> as failing due to not meeting the 3' separation from the saturated soil (mottled soil) or <br /> lack of system. The existing tanks are old, either metal or block type and will need to be <br /> abandoned, pumped and filled with soil. A new system will need to be installed. <br /> This on-site sewage treatment cluster system is designed for a Type 3, 3 bedroom 218 <br /> gal/day each cabin totaling 654 gal/day, in accordance with the Minnesota Pollution <br /> Control Agency Chapter 7080 and local ordinances. An easement agreement will be <br /> required by the city. The agreement will require a maintenance schedule for maintaining <br /> the tanks, and shared electrical costs, etc. A water meter will need to be installed in <br /> each cabin to monitor the daily water use and to be recorded with the property. The <br /> system will be 5' from the property line and up to the road easement, this will need <br /> approval from the city. Approval will also be needed for a tank to be 5' from the Robb <br /> cabin to stay out of a low area. <br /> The soils on this site are SCS soils mapped - HbC - Hayden loam. The seasonally <br /> saturated soils were located at 5'10". The bottom of the treatment area must be located <br /> at least 3' above the seasonally saturated soils. A standard gravelless 10" diameter <br /> trench system may be installed. <br /> The soils at a depth of 30" have a percolation rate averaging 10.4 mpi. <br /> 1 <br />