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Mr. Zach Trujillo <br />December 17, 2015 <br />Page 12 <br />c. Please propose a monitoring point(s) that will allow the prediction of "no impact" to the <br />Trout Creek Sandstone to be verified. <br />Response: A proposed Trout Creek Sandstone monitoring point will be added north to northeast <br />of the middle of the northern edge of the pit (east of the temporary spoil pile). Text has been <br />inserted in Volume 15, Rule 4 that provides more information about this proposed monitoring <br />point and the water quality parameters that will be collected <br />ITEM 81. CCC proposes to discharge a very significant volume of water from dewatering wells <br />(200-300 gpm during years 1-3; 100-200 gum during years 4-8; <100 gpm after year 8); <br />potentially in the region of 3, 000 acre ft. over 8 years. <br />a. Please clam the legal right of CCC to this groundwater. <br />Response: Colowyo will be submitting a dewatering well/system applications to the Colorado <br />Division of Water Resources to install dewatering wells and remove groundwater. As noted in <br />the adequacy response to Item 1 in the November 20, 2015 adequacy response letter, once any <br />permit(s) are secured, if applicable, Colowyo will update the PAP with the permits secured. Text <br />has been inserted into Volume 15, Rule 2 indicating this also. <br />b. Please describe how the water will be used or discharged. Where will it be pumped to? What <br />are the anticipated impacts to the receiving drainage? <br />Response: Language has been inserted into Volume 15, Rule 2 which indicates how Colowyo <br />will utilize and/or discharge the dewatering water. Anticipated impacts to receiving streams <br />have been included in Volume 15, Rule 2. <br />c. Please propose monitoring points that will allow the drawdown cone adjacent to the pit to be <br />characterized during the dewatering and recovery phases of the operation, and predictions <br />made in the PHC to be verified. <br />Response: Text has been inserted into Volume 15, Rule 2 which outlines monitoring points that <br />will be installed to characterize the dewatering as requested. <br />d. This is related to Item I in the initial adequacy review letter. <br />Response: Please see the response to Item 1 submitted to the Division on November 20, 2015 <br />and Item 81(a). <br />ITEM 82. Section 2.06.8 of the PAP discusses operations on areas, or adjacent to areas, <br />including alluvial valley floors. The text describes afield investigation and technical evaluation <br />of all drainages containing streams within and adjacent to the permit boundary, including the <br />A T onch-ione F.nerKyy (_',x,perato c "I <br />