02-27-1978 Planning Packet - Laserfiche WebLink

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. Page :-4- Light Green WCa Dark Blue Le Sueur loam - 1 to 4 percent slope: The map symbol for this soil is LtB and the map color is light green. This soil is nearly level to gently sloping occupying areas on low knolls. There ^ watertable within 3 feet of the surface during wet periods of the year. Drainage needs to be provided around basement rails. Since the soil is nearly level there is usually little grading required. Soil stren gth is adequate for residential development. Shrink-swell (volume change) is low to moderate with clianges in moisture content. Peaty muck; The map symtol for this soil is Pa and the map color is dark blue. This as an organic soil consisting of peaty muck deposits 3 1/2 to 10 feet or more in thickness. Below the peaty muck usually lies a layer of lake sed iments and below that the clayey or loany Grantsburg till. Water is at or near the surface the entire year. The organic material has very low bearing values. ^ IV. POTENTIAL OF SOILS FOR ON-SITE WASTE TREABENT The potential of the soils originally mapped by the SCS National Cooperative Soil Survey for on-site treatment of septic tank effluent will be discussed. the recommended "Ordinance and Code Regulating individual Minnesota Department of Health in JaMo ^ absorption system shall be installed in an area where the water. ^ Control Agency WPC-40 "Individual Sewage TreLmwt Sys- at least three bottom of trenches and beds shall be aHnn of ^ Watertable or bedrock" and allows for install- tJench LsSm systems other than the standard subsurfacetrencn system to meet this requirement. % »/a ba%rienayeTs ”Jns “LS^^^^ Sl-ec*^ miniimim separation distance is due to the fact that it takes approximately 3 feet of unsaturated soil material to properly treat t^Mreffluent. Once the septic tank effluent ce to the home oraer, but can also pose a health hazard if the surrounding