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01/20/2004 12:30 970-330-4546 CCWCO PAGE 02 <br />C~C~Mn9C~D <br />Mr. CrtegNelson <br />weld Cotmty Public Works <br />P.O. Box 758 <br />(3reetey, CO 80632 <br />Mr. Nelson <br />central Colorado water <br />conservancy district <br />3203 West 28th Street <br />Greeley, Colorado 80634 <br />(970) 330-4540 • Metro (303) 825-Od74 <br />FAX (970) 330-4546 <br />January Z0, 2004 <br />Central is in the process of having a slurry wall test completed by Tetra-Tech, Inc. <br />for the 83rd Avenue Pit. This work is proposed to be completed by early spring 2044. <br />Tetra-Tech, Hall-Irwinand/or Cantrai's office will keep yon current with say <br />correspondence between parties during the test period. <br />The Koenig Pit aesr Platteville has a large amouai of material left to be mined. <br />A test on this pit will be conducted within the next few months. Currently we are Iaoking <br />at using test wells on either side of the slurry wall to determine change in groundwater <br />elevation. <br />water storage firm the IGcenig Pit even in is cuurent configuration is valuable to <br />replace depletions caused by Central's member well pumping. 'T'his water source helps <br />keep irrigated apiculture viable. <br />I hope this addresses yow questions regarding Central's slurry wall test plans. If <br />you have any questions, please feel free to contact nte. <br />Sine-erely2 _ <br />randy w. ray <br />CCWCb Operations Manager <br />Ce: Colby Hayden (Teas Tech RSN ) <br />Adam Mack -Hall-Irwin <br />