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07/15/2004 Env Bd Packet
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07/15/2004 Env Bd Packet
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Environmental Board
Env Bd Document Type
Env Bd Packet
Meeting Date
07/15/2004
Env Bd Meeting Type
Regular
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• <br />• <br />• <br />b. If wastes will be discharged into a publicly owned treatment facility, identify the facility, describe any <br />pretreatment provisions and discuss the facility's ability to handle the volume and composition of <br />wastes, identifying any improvements necessary. <br />The wastewater requires no pretreatment and will be conveyed by a system of gravity <br />sewer mains, lift stations and force mains to the Metropolitan Council Environmental <br />Services (MCES) interceptor. Eventually, all effluent from this interceptor reaches the <br />Metro Treatment Facility. The addition of eight lots will not overburden the system in <br />this area. <br />c. If the project requires disposal of liquid animal manure, describe disposal technique and location and <br />discuss capacity to handle the volume and composition of manure. Identify any improvements <br />necessary. Describe any required setbacks for land disposal systems. <br />Not applicable. <br />19. Geologic hazards and soil conditions <br />a. Approximate depth (in feet) to ground water: 0 feet minimum : 10 -15 feet range for the area <br />avg. to bedrock: minimum 200 feet average 250 feet <br />b. Describe any of the following geologic site hazards to ground water and also identify them on the site <br />map: sinkholes, shallow limestone formations or karst conditions. Describe measures to avoid or <br />minimize environmental problems due to any of these hazards. <br />Geological site hazards, sinkholes, or abandoned unused wells are not known or <br />suspected to exist on this property. <br />c. Describe the soils on the site, giving NRCS (SCS) classifications, if known. Discuss soil granularity and <br />potential for groundwater contamination from wastes or chemicals spread or spilled onto the soils. <br />Discuss any mitigation measures to prevent such contamination. <br />The soil types evident on the site are Hayden fine sandy loam (Hd) on the upland area, <br />Dundas loam (Du) and Rifle mucky peat (Rf) in the wetland area. The Hayden soils on <br />the upland area have a moderate moisture permeability rate. Spills will infiltrate to the <br />water table in a short period of time. The Dundas loam and Rifle mucky peat have low <br />permeability, are poorly drained with high moisture storage capacity. The relatively low <br />hydraulic conductivity typically associated with soils of this grain size distribution <br />restricts the potential for the migration of surface contaminants to the groundwater. <br />Mitigation of spills will generally be surface clean up. In case of spilled liquids, booms <br />or absorbent will be used. The description is for general characteristics of these soil <br />types. More specific information regarding soil conditions can be found in the subsurface <br />exploration report in Exhibit F. <br />20. Solid wastes, hazardous wastes, storage tanks <br />a. Describe types, amounts and compositions of solid or hazardous wastes, including solid animal <br />manure, sludge and ash, produced during construction and operation. Identify method and location <br />of disposal. For projects generating municipal solid waste, indicate if there is a source separation <br />Environmental Assessment Worksheet <br />Page 14 Pheasant Hills 12`" Addition <br />
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