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. • ,�7�P TESTING� �NC. Steven B. Schirmers • MPCA Cert.f�o. 627 <br /> 951 Katydid Lane NE • St. Michael, MN 55376 • (612) 497-3566 <br /> FAX (612) 497-5011 <br /> State License#394 <br /> October 1, 1997 <br /> Norwest Trust Real Estate <br /> Jim Anderson <br /> 1905 Heritage Lane <br /> Orono, Henn. Co., MN <br /> A compliance inspection was completed for the existing on-site sewage treatment <br /> system located on this property. A Soil boring (#3) into the system found the top of the <br /> rock in 27" below grade at elevation 97.8 with the bottom of the system at elevation 96.3 <br /> to 96.5. Soil borings#1 & 2 found fill soil 30" to 68" deep with mottled soil (seasonally <br /> saturated) at elevation 91.5 and deeper. This system meets the 3' separation from the <br /> saturated soil and the bottom of the system required within shoreland areas. The <br /> system consists of a 12' x 50', 600sq.ft. seepage bed with gravity distribution. The <br /> existing tank has no bottom and is a cesspool which is classified as an imminent health <br /> hazard and must be repaired or disconnected within 10 months. The city of orono <br /> requires a system to be upgraded when a repair is needed. A 600sq.ft. gravity seepage <br /> bed will only support 315 gal/day. A 3BR home is sized for 450 gaUday. To bring the <br /> existing system up to code, the system will need to be pressurized. This will require the <br /> seepage bed to be opened up and 1-1/2" or 2" diameter distribution pipe inserted up the <br /> 4" diameter existing distribution pipe. The distribution pipe will have 1/4" diameter <br /> perforations 36" apart and capped at the ends. <br /> This On-Site Sewage Treatment System is Designed for a Type 1, 3 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 - sandy loam fill & HeB - Heyder sandy <br /> loam. <br /> 1 <br />