PRECM 11-02-1983 - Laserfiche WebLink

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4 The remaining eastern and western 40 percent of the site is classified • as Urban Land (1039), more than 90 percent of which is covered with impervious surfaces (buildings, parking lots, etc). Storm runoff can be high, and may cause severe erosion. All three of the alternative 5-acre building sites will touch upon all three soils categories, and the proposed access routes for alternatives 2 and 3 (see Figure 5) will lie primarily on Udorthent soils (1027). A portion of the site shows evidence of solvent contamination; believed to be the reult of waste spillage by a previous property owner. Midwest Asphalt Corporation; has agreed upon a plan with the Minnesota Pollution Control Agency (MPCA) for remedial clean up. In the affected area, soils were excavated to a depth of 3 feet, treated and used in asphalt manufae- t~re. The affected arena was less than 10,000 sq. ft. Excavated soils. have been replaced with gravel. 16. Dces the-site contain peat soils, steep slopes,-sink holes, shallow limestone formations, abandoned wells, or any geologic hazards? _ No X Yes The site contains a functional 12-inch diameter high capacity well. 17. a) What is the approximate depth to groundwater? 15 feet minimum;. 20 -feet average. b) What is the approximate depth to bedrock? 250 feet minimum; 300 feet average. • 18. Does any part of the pro~eot area involve: a) Shoreland zoning district? X No ~ Yes b) Delineated 100-year floodplain? X No Yes c) State or federally designated river land use district X No ~ Yes Identify water body and applicable state classification(s): 19. Describe any physical alteration (e.g., dikes, excation, fill, stream diversion) of any. drainage system, lake, stream,. and/or wetland. Esti- mate quantity of material to be dredged and indicate where spoils will be deposited.. The only mayor area of excavation will be the building site, approxi- mately 150 by 180 feet. The building excavation will be approximately 6 to 8 feet deep for equip- ment erection, ash removal, etc. The waste storage area (tipping floor) is built as close to ground level as possible for ease in accessability to trash trucks. Excavated fill will be re-us8d for backfill and sloped areas around the building.. Excess. dirt will be removed if need be. Access roads and parking areas will be constructed .using standard con- struction practices. Roads and parking areas will be blacktopped. •