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Ms. Helen Hensen 3. Added Water Usage Well Normal Water Use Maximum Water Use Period of Principal Gallons Per Dav Gallons Per Day Operation Water Usage A 50 100 Daily Sanitary and Domestic Uses 001 288,000 576,000 As needed Gravel washing operation, pond filling The gravel washing well will be used to initially fill the settling basins. During operation water will be recycled through the settling basins and the well will be used to make up wash water on an as needed basis. The settling basins shall be designed to conserve water as much as possible. The rate of water withdrawal may have a significant impact on the nearby public utility well in Marshall. Continuous operation of the pump on a daily basis will not be allowed. The pump may be operated for 12 hours and then turned off for 12 hours. This type of operation will allow the aquifer to rebound after each use and the overall impact on the aquifer will be reduced. Proximal Public Utility Well: The nearest well serving a public utility is located in Marshall approximately 4000 feet northeast of the proposed gravel washing well. Well/Contamination Proximity: There are no reported sanitary landfills within 1200 feet of the proposed gravel washing well. CONDITIONAL APPROVAL Because the operation of the high capacity water supply is expected to cause a reduction in groundwater availability to the nearest public utility well, the proposed construction and operation of the gravel washing well is hereby approved, as described in this approval, subject to the conditions noted below. The Department reserves the authority to limit pumpage from the well in any amount necessary to eliminate excessive drawdown in the nearby public utility well. If the operation of the well adversely affects the operation of any private wells on neighboring properties, this Department approval will not negate the protection to which private well owners are entitled under Wisconsin case law relating to groundwater. Approval by the Department does not relieve the property owner or well operator of any liability which may result from injury or damage suffered by any person upon operation of the well. You should also be aware that the Department has the authority to require either the alteration or the decommissioning, relocation, and reconstruction of the existing low capacity water supply well if, during any future inspection of the well, the Department determines such work is required for compliance with the current requirements of Chapter NR 112, Wis. Adm. Code. If construction has not commenced within two years from the date of this letter, this approval shall become void. After two years, therefore, a new application must be made for approval of the plans and specifications before any construction work is undertaken.