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Koch's Soil Testing <br /> P.O. Box 81 f <br /> Loretto, MN 55357 <br /> Tel: (612)479-2637 <br /> Earl Fischer .� 8/9/93 <br /> 18025 Co. Rd. #. 6 <br /> Plymouth, Finn <br /> Tel 473-0706 <br /> Job Site; S. E.1/4 of the S. E. 1/4 of Section 33-118-23 <br /> Henn6pin, County, Yinn. <br /> Pereolation. tests and soil borings were done on Lot r# 3-7 in the <br /> above subdivision to determine what type of On-Site Sewage system <br /> could be be ir_stallled on the above lot and still comply <br /> with the local ( C1ity of 0rono )codes. <br /> * Note ; The only two type of systems that are allowed is a <br /> standard trench system or a pressuz,ized mound system. <br /> Percolation rate results and mottled soil levels foil the following <br /> lots. <br /> Lot # 3 Site ,# 1 ave. percolation rate- 37.2 min/in. <br /> mottled soil levels 13-16 inches <br /> Site # 2 ave. perc . rate--43. 9 min/in. <br /> mottled soil levels-14-20 inches <br /> Lot # 4 Site # 1 ave. perm , rate 39. 3 min/in. <br /> mottled soil levels 24-30 inches. <br /> Site 2 ave. perc . rate 34. 3 min/in. <br /> mottledClsoil levels 18-24 Inches. <br /> Lot ;; 5 Site ave. perc . rate --36. 0 min/in. <br /> mottled soil levels 24-30 inches. <br /> �Ite K 2 ave. perc . rate--34. 8 min/in. <br /> mottled soil levels 18-28 inches. <br /> Lot 6 :site ;# 1 ave. percQ rate 43. 9 min/in. <br /> mottled soil levels 25-36 inches. <br /> Site ;# 2 ave. epre. rate ---43. 3 .min/in. <br /> mottled soil levels 34-38 inches. <br /> Lot # 7 Site ;; 1 ave. perc. rate 39. 3 min/in. <br /> mottled soil leveels• at 18-24 inches. <br /> Site ,# 2 ave. perc. rate-- 40. min/in. <br /> I-:ottled soil levels 16-22 inches. <br /> mottled soil is consider the high seasonal saturated soil conditioms <br /> that exmst during the wet seasons. The City Wf Orono On-Site <br /> Sewage Codes require that the minnimum depth to mottled soil <br /> be at 54 inches before a standard system can be installed. <br /> Therefore the only systemsthat can be installed on the above lots is <br /> a pressuiized mound system and still comply with the local cod.es. . <br /> Site Evaluator <br /> Robert A. Koch , <br /> Robert Koch MPCA Certified <br />