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-' Koch's Soil Testing P.O. Box 81 Loretto, MN 55357 Tel: [612) 479-2637 Ear.:. Fischer. �� 8/9;193 18025 Co. Rd,. # 6 Plymouth, Minn Tel 473-07o6. ' Job Site; S. E.1/4 of the S. E. 1/4 of Section 33-118-23 Henr tpin, County, Minn. ' Percolation tests and, soil borings were done on Lot # 3-7 in the above subdivision to d.etermine what type of On-Site Sewage system could be be installled. on the above lot and still comply with the local ( City of Orono)cod.es. * Note i The only two type of systems that are allowed, is ,a standard trench system or a pressurized. mound system. Percolation rate results and. mottled soil levels for the following lots. Lot # 3 Site # 1 ave. pttcolation rate- 37.2 min/in. mottled. soil leUels 13-16 inches Site # 2 ave, perc. rate--43. 9 min/in. mottled. soil levels-14-20 inches Lot # 4 Site # 1 ave, peen . rate 39.3 min/in. mottled. soil levels 24-30 inches. Site # 2 ave. Pere, rate 34.3 min/in. mottled.dsoil levels 18-24 inche , Lot :7 Site # 1 ave. pert. rate --36. 0 min/in. mottled soil levels 24-30 inches. Site # 2 ave, pert, rate--34.8 min/in. mottled. soil levels 18-28 inches. Lot . # 6 Site # 1 ave. perco rate 43.9 min/in. mottled soil levels 25-36 inches. Site # 2 ave, eprc. rate ---43.3 .min/in. mottled soil levels 34-38 inr 'Zes. Lot r-" 7 Site # 1 � aves perc. rate 39.3 min/in. mottled soil leveelsat 18-24 inche, . Site '# 2 ave. perc. rate-- 40• min/in. Mottled. soil levels 16-?2 inches. Mottled. soil is consider the Nigh seasonal saturated. ,. oil conditioms that exmst during the wet seasons. The City Imf Orono ( n-Site Sewage Codes require that the minnimum depth to mottled soil be at 54 inches before a standard, system can be installed.. Therefore the only system3that can be installed. on the above lots is a pr.essutized. mound. system and. still comply with 'the local codes. . " Site Evaluator Robert A. Koch Robert Koch MPCA Certified