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I <br />-2- <br />Tables for Net Evaporation and Water Consumption for Excavated Materials are <br />attached. Consumed water for the project is based on an assumed total of 1 millon <br />tons produced at the site at a rate of 100,000 tons per year over a ten year period. It <br />is further assumed that a maximum of 75% of mined material will be mined below <br />the water surface elevation and that 4% of that material will be, by weight, water that <br />is consumed. The estimated annual consumption for 100,000 tons is 2.207 acre- <br />feet. Total Consumption due to mined materials at the site for 1 million tons over <br />ten years would be estimated to be 22.07 acre feet. As dewatering may be done <br />during excavation activities from one pond into the other, the actual total water <br />consumed should be less as the groundwater levels would be reduced during most <br />excavation activities. <br />The annual net evaporation increase and final net evaporation for the site is based on <br />exposing an average 3.023 acres of water surface area per year for ten years. The <br />interpolated exposed water surface area and the net evaporation values from the <br />table for an area of 3.023 acres is 7.57 acre-feet per year. After 10 years the planned <br />exposed water surface area will be approximately +/- 30 acres and annual net <br />evaporation is an estimated 75.70 acre-feet. <br />2. There is only the single well owned by the applicant within 600 feet of the permit <br />area. The well is a residential supply well for their home. <br />3. Offsite water will be used for any dust abatement or other site uses. <br />4. The Damage Agreement/Promise to Correct document for the Deep Cut Ditch <br />Water Right Ownership has been attached and also a copy of the agreement <br />concerning the applicants well. <br />I have also enclosed a check for the $100 application fee and I have revised and attached <br />the Gravel Pit Well Permit Application (a single application for both ponds) to reflect a <br />final +/- 30 acre water surface area and have included my field notes on a site map from <br />the site inspection. ! <br />Please contact me if you have any questions at (719) 655-2709. Thank you. <br />egards, <br />c ?? <br />Timoth Scanlon <br />Geologist <br />Cc: with attachments, Mr. Russ Means - DRM&S