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Ei)viroI)n)cI)t, Iqc. <br />LARRY E. O'BRIAN <br />FOUNDER <br />STEVAN L. O'BRIAN <br />PRESIDENT <br />December 10, 2012 <br />Mr. Berhan Keffelew <br />Division of Reclamation, Mining & Safety <br />1313 Sherman St., Suite 215 <br />Denver, Co 80203 <br />sear hr. Keffele; <br />RE: Stagecoach Pit - Permit #M -1983 -067 <br />1ernitoring well data <br />Attached is a copy of the entire span of monitoring well data <br />for the 8 wells around the Stagecoach Pit. Albert Frei & Sons, <br />Inc., took over, the mine permit in August 2009 and submitted the <br />data collected from that time with their Annual Reports. <br />Albert Frei and Sons and Lafarge has accumulated nearly 9 <br />years of data for these wells. Prior to Frei taking over Lafarge <br />was the operator and they supplied the data sporadically from 2001 <br />to July 2009. The attached table shows all the data both companies <br />collected, adjusted to elevations. I have added text and color <br />lines to indicate when Frei assumed responsibility for monitoring, <br />when the slurry wall was complete and when dewatering stopped on <br />the area west of Ms. Bromley's house. I have also included a map <br />showing the location of each well. <br />If /when you are ready to visit the site please call Ben Frei <br />with Albert Frei & Sons, Inc. (303) 289 -1837 or myself and wp w 411_ <br />rneeL you. If you need more detail or have more questions please <br />call me at the above number. <br />Sincerely, <br />Environment, Inc. <br />Stevan L. O'Brian <br />President <br />cc Environment, Inc. <br />files <br />e -mail <br />enclosure <br />RECEIVED 7985 VANCE DRIVE, SUITE 205A <br />ARVADA, COLORADO 80003 <br />303 - 423 -7297 <br />�[�F( 1 2 2012 FAX 303 - 423 -7599 <br />DIVISION OF RECLAMATION <br />MINING AND SAFETY <br />