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/GQ'"t' Greg Lewicki and Associates I~ECEIi/E® DEC 1 123 11541 Warrington Court, Parker CO 80138 December 8, 2003 and Ceolopy OEC 0 9 1~ J Russ Means ~ ~~~~~, Colorado Division of Minerals and Geology 101 South 3`d Street Suite 301 Grand Junction, Colorado 81501 Dear Russ: M ~ ~J ~ 3 _ ~ 3 7 Pa~pseo y,~.,..~o w~.T~ .~t,,,,.1Pa~.~, Enclosed is the proposed ground water monitoring plan for the Haldorson Sand and Gravel Mine in Montrose County, Colorado. See enclosed map for detailed locations. All holes will be completed to bedrock and will have a perforated casing over the entire depth. All "A" holes (7 total) will be drilled and completed as soon as approval is granted. It is expected that depths will range from 12-35 feet in the south to 55-65 feet in the north of the permit area. All "B" holes (4 total) will be drilled and completed after one year of monitoring and evaluation of the "A" holes. In no case will mining be allowed south of Phase 1 until one year of monitoring has occurred on the "A" holes and the Division has approved the mining of the additional phases. All "B" holes will also be monitored for 1 year. All holes will be capped at the surface and marked to prevent surface damage. The holes will be checked weekly at the same time of day for water levels. This will occur for 1 year from the start date. Once per quarter, a sample of each well will be obtained to determine pH and specific conductance. A log book will be kept with all information, which will be presented to the Division at the end of the year. This submittal will also have a detailed discussion of the ground water hydrology of the site, the start and end of irrigation, the observation of groundwater at other area locations, water quality, water rights impacts, appropriate mining depths, etc. Let me know if you have any further questions. Thanks. Sincerely, L C/ ~ < Greg Lewicki, P.E. Greg Lewicki and Associates cc: Mark Haldorson