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Erosion Control Plan: <br />The mining operation employs a variety of screening, crushing, and conveying <br />equipment, including loaders and dozers. The lubrication, fueling, and repair practices <br />used to maintain the equipment are designed to eliminate petroleum products from <br />ground contact. The Storm Water Pollution Prevention Plan (SWPPP) addresses practices <br />for proper storage, hauling, and use of petroleum products, as well as inspection and <br />response procedures. <br />The pollution prevention practices addressed on-site management planning to <br />minimize the opportunity for infiltrating water to carry contaminants to groundwater. <br />Plant foremen perform site inspections throughout the operating period. Observations and <br />conditions are reported for all applicable environmental programs. Rain that falls in the <br />mining area will be contained and allowed to seep naturally into the pit floor-or be <br />directed to on-site containment areas. When and where necessary to prevent surface <br />runoff from entering the excavation, temporary small, earthen berms will be constructed <br />to direct surface water flow from the active mine site. <br />The Minnesota Pollution Control Agency's Storm Water Pollution Control Program <br />regulates this mining operation. Midwest Asphalt Corporation has an existing storm <br />water plan for aggregate operations that employs Best Management Practices (BMP's) <br />for pollution prevention. The management practices listed in the plan addresses both <br />petroleum products handling and erosion control, including the on property containment <br />of storm water runoff for suspended solids control. All storm water and spring snowmelt <br />water from within the mining operation is contained either in the excavation or on- <br />property containment areas with overflow pipes. <br />The only water leaving the site from the active mine area is the rainwater that falls on <br />approximately one -block of paved road which is swept as needed or that falls on <br />undisturbed woods & meadow land. Site is inspected monthly when operating. All Trash <br />is collected. <br />,~ ..~ . w :~,. ~... <br />.. ~ ~ ~. <br />.?~~.._ <br />