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i Mr. Tom Pike <br />June 17, 1980 <br />~ page 2 <br />• 1. Entries will be developed toward the boundary of the 1320 foot permit. <br />2. As soon as possible, a three inch hole or larger will be drilled down <br />the path of the proposed entries. <br />3. This hole will be drilled 50 feet and the flow rate determined (gallons <br />per minute). <br />4. Drill the hole in 50 foot increments, each 50 feet determine the flow <br />rate. <br />5. Marked increase over the flow rate found in the first 50 feet (2X) <br />will stop drilling, and flow will be measured every day to determine <br />if the water source is being recharged. The agencies will be informed <br />of the flow and drilling. <br />6. If the water flow is not excessive when the drill hole reaches the <br />proposed shaft then entries will be developed as proposed, with <br />drilling ahead of development. Inflows of water will be reported <br />to the agencies. <br />7. Upon reaching the intake shaft site a hale will be drilled vertically <br />to determine the aquifer potential and the rock strength in the <br />shaft location. <br />8. If no Pxcessive inflow of water is found in the shaft site construction <br />of the shaft will begin. <br />Consultatior•, inspection, and cooperation of the agencies is invited a*. <br />any time, an~~ underground mine visits are encouraged. <br />Your consideration and comments on tins pion are appreciated. <br />Sincerely, <br />Al Amundson, <br />Chief Engineer <br />ALA/bc <br />Enclosure <br />XC: Marion Dodson Paul <br />Colorado Mined Land Reclamation Bureau <br />• <br />