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ll/0»/20b4 11:43 FAX 7034418176 water labs ii ECO SYSTi^S 2002 <br />Mil Miller Environmcnttl Inc. <br />Pmow».763-370-5961 <br />Fax: 763-441-9176 <br />353 Eaix Main SltttX • Elk River. MN 55330 <br />November 8,2004 <br />Palm Propcniea <br />Mike Palm <br />2311 WayiaU Boulevard <br />Mlnncq>oUs, Minnesota 55405 <br />Subject: Site lavestigaiion for Onsite Wastewater System (OWS) <br />560 Big Island, City of Orono <br />MEI completed 4 Mil borings on November 5. 2004 « the approxinute loMtioiB indicated on the <br />attached figures. The soil profile descriptions arc attached to this conespondcnce. TOepu^seofthe <br />Mil investi^n was to generally detenmne the type of Onsite Wastewater System (OWS) that can be <br />anticipated to serve the new residential home. <br />The resulU of the soil borings indicate the site is underlain by loamy glacial deposits Clay loam <br />textures were encountered in the soil bonngs to approximately 3 feet, underlain by olive brown swdy <br />loam soil rich in calcium carbonate and shale deposits. The soil borings completed within the dram field <br />area were on slopes from 4Vo - 18% with a dense cover of oak, aspen and njaplc frees. Slope <br />measurements were taken in three locations; 1) along the entire drain field area. 2) along the area of the <br />primary site and 3) along the area of the secondary site The three measurements had an average slope <br />of just less than 18%. <br />Evidence of a seasonal water table was not obscr\’ed in soil borings 2-4, the area of the proposed S <br />drain fields. The attached figures give the drain field calculations and area requirements ^ well as <br />identifying the proposed area for the drain fields. It is anticipated that a three bedroom type 2 home will <br />be constructed on the site for an estimated average daily flow of 300 gallons per day. With a subsurf^e <br />drain field using an equivalence of 12 inches of sewer rock will require two dram field sites of 528 <br />square feet each. Three foot wide drain field trenches are shown along the contour of the landscape on <br />the attached figures to meet the area requirements. <br />At the time of designing the OWS for the residence, percolation tests arc required by the City of Orono <br />as well as a complete OWS design with data sheets and material specifications for permilling. <br />If you have questions, plcase&d free to call. <br />Designer 1MPCA Certification W2262 <br />Cc: Man Dolterman; City' of Orono