1994-006372 - septic system - Laserfiche WebLink

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. . - ti �"�'' TESTING, INC. Steven B. Schirmers — MPCA Cert. No. 627 951 Katydid Lane NE • St. Michael, MN 55376 • (612) 497-3566 _._ _ _ - --� R_... .----- , � k, "} July 13 , 1992 Jim Lawrence � 1550 Ca.Rd.#6 � � 4 ��;�.,,. existing house, lot 1 �U�- - Orono, Henn. Co. , MN This On-Site Sewage Treatment System is Desi.gned for a Type 1, five bedroom home (4BR home with 1BR guest house) in accordance with the Minnesota Pollution Control Agency Chapter 7080 and local ordinances . ( future expansion for the existing house) . The soils on this site are SCS soils mapped - HbB - Hayden loam. A seasonally high water table was located at 20" to 26" , (mottled soil ) . Due to the seasonally high water table, a Pressurized Mound system will need to be installed. The bottom of the rock bedmust be located at least 3 ' above the seasonally high water table. The soils at a depth of 12" have a percolati.on rate averaging 8 . 1 min/incti. and are adequate for treating septic effluent. A pumping chamber will need to be installed to lift the effluent to the treatment area . The manifold and supply line pipe must have back drainage to the pumping chamber. The distribution pipes shall have their ends capped. Be sure the rock and sand fill material are clean. The sod layer below the entire mounded area must be turned over, just break up the sod, be sure not to over work. The power supply and switches must be located outside the manhole and pumping chamber in a weather proof enclosure . A warning device must be installed with a light and sound device, this is in case of a pump failure . Mercury floats are a good method. The existing tanks may be used upon approval by the local Inspector. All neighboring wells are located greater than 100 ' away from the proposed treatment area . CONT'D