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III IIIIIIIIIIIIIIII <br />A~IINOR REVISION 29 <br />Coors Energy Company (Coors) has recently experienced both production and quality <br />problems with its domestic water supply well, Permit No. 24650-F. This well was drilled <br />in 1980, during the initiation of operations at the Keenesburg Mine, and now provides all <br />of the domestic use, dust control, livestock and irrigation (to the extent there is a need and <br />use) water at the site. The well has begun to exhibit characteristics similar to another <br />Laramie-Fox ITills formation well (Permit No. 24651-F) which was drilled at the same <br />time as this well, and had to be plugged and abandoned about five years ago. A video <br />camera lowered into the well has disclosed severe corrosion of the plain casing and <br />plugging of the screened sections with formation sand. It was determined that the severity <br />of the corrosion to the plain casing was such that attempts to acid treat the well (to clean <br />up the screened section and improve the production capacity) would likely result in a total <br />collapse. <br />Faced with the potential loss of the site's only water supply source, Coors has engaged the <br />services of a well driller and a geologist to provide technical expertise concerning the <br />drilling and completion operations, and has applied to the Colorado Division of Water <br />Resources for a permit to replace the existing well with a new one, to be located <br />approximately thirty feet away. Verbal approval has been received from the Division of <br />Water Resources to proceed with drilling operations (receipt of the final permit <br />documentation usually takes four to six weeks). <br />Coors presently plans to reconnect the existing water system to the new well as soon as <br />drilling and completion operations are concluded and it is possible to transfer piping and <br />equipment from one well to the other. No other change to the water system is anticipated. <br />A copy of the well permit document will be furnished to the Division as it becomes <br />available. <br />This Ivfinor Revision is submitted by Coors as a matter of information to the Division. <br />When the new, or revised well permit number is available from the Division of Water <br />Resources, item 3 on page 31 of the 5/96 Permit Application document will be adjusted to <br />reflect this information. <br />MR-29 2/97 <br />