1991 - Septic System Approval - Laserfiche WebLink

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Koch's Soil Testing P.O. Box 81 Loretto, MN 55357 Btidet Hurst Tel: (612) 479-2637 10/28/91 820 OH Ctystae Bay Rd. Otono, Minn. Job Site; Above. addtess The average petcoeation tate in the atea that was tested was 23 min/in. and the depth to motteed soie was at 24 inck6.. • Motteed sole is considet the high seasonae water table that exist during the.. I,- wet seasons and is an indication of saturated sole conditions. The. City' Orono On-Site Sewage tuees tequite thattkkkrrhinnimum depth to motteed sole be at 54 inches ( 4 1/2 it. ) of deepet be6ote a standatd ttench system. Thetebote with the above information the oney type of system that can be instaeeed in this atea is a mound system and stieecompey with the eocae codes. The size o4 mound system needed liot a 4 bedroom home. ( based on 600 gatfon/day daiey water useage and a petc. tate oti 23 min/in. the.' sizing 6actot4) woued be. 39 it. wide. by 91 6t. tong ( 3315 sq. it. ) . The size o,S tock ect4et needed woued be. 10 4t. wide by 55 6t. eong ( 550 sq. ct. ) . * See the enceosed design data 4ot the speci,ications bot the ptoposed mound system. This mound must be pte.ssutized thetepte a pump tank ( 1000 gaffon) and a pump ( 40 g.p.m.- 161 gat/cycee- 4 cycees/day) must be instaeeed. this pump must be abet to ovetcome at feast 11 tit. of head pressure. Ah'taeatm system ( both a sound and a eight aeatm system) must be instaeeed in the house to indicate pump 6aieute. • Note -Mete is 2- 1000 gafeon septic tanks aeteady instaeeed, these tank coued be used i4 they meet the cuttent codes, this being that they ate. water tight and have seaeed botttoms. The iinae decision on this mattet wilt be up to the eocae inspector. Oney ceean wash sand shooed be used in this mound system therefiroe the eocae inspectot shooed check this sand to make sure it meets the. specifications. Site. Evaeuatot Robett A Koch ealLaVOW4.) Robert Koch MPCA Certified