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TO: <br />FROM: <br />DATE: <br />Jeanne A. Mabusth, Zoning Administrator <br />Michael P. Gaffron, On Site Manager <br />June 15, 1983 <br />SUBJECT: Proposed Subdivision for Willow Properties <br />Investigation <br />Luo^i^rcl^ents! <br />Based on the Hennepin County Soil Survey, soils on <br />Lester loams and clay loams, <br />Hayden loams, Hamel loams and LeSeur loams, as <br />well as a good deal of marsh. Tested sites are <br />arJa^®of°" better-drained soils. Someareas of sandy soil were reported on the most <br />easterly lots. Based on the soils and water table <br />data submitted, shallow trench or standard trench <br />systems appear suitable for all lots. Following is <br />a summary of the soils data for each site: <br />sites ^ ~ Percolation Rate Average 22 MPI both <br />~ slope 5% - mottling at 3.5' - water <br />table at 3.5' - modified shallow trench system* <br />Maximum Trench Depth 6" into original soil- - - <br />- Alternate site - slope 8% - mottling at 4.0' <br />Water table at 4.9' - shallow trench sysf^n, - <br />trench depth 12" into 5H?IHi-l“i^Il- maximum <br />Depth JJ-'into - Maximum Trench <br />- J^ternate Site - slope 8% - mottling at 3.3' - water <br />table at 3.3 - modified shallow trenches* - maximnni <br />trench depth 4" into origlTTal soil- - - - - maximum <br />iites ^ ' P®^°°^®tion Rate Average 23 MPI both <br />- Primary site - slope 10% - mottling at 4.0', 4 5* - <br />water table at 4.0', 5.5' - shallow trencL^ - <br />maximum trench depth 12" int5~5FI^nir soil " <br />- mottling at 3.5' - water <br />table at 3.6 - nidified _shallow trenches*- Maximum