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WATER QUALITY SAMPLING PROTOCOL <br />Procedure <br />The ground water sampling procedure used at the Keenesburg Mine site was <br />originally approved as part of the Coors Energy Company (CEC) <br />Application for Permit Renewal (1997), filed with the then Colorado <br />Division of Minerals and Geology (CDMG). CEC has consistently <br />employed this procedure beginning with the fourth quarter, 1997 sample <br />collections. Consent to dispose of Mine Waste Rock at the Keenesburg site <br />(MR #34, 8/98) resulted in minor changes to the approved ground water <br />monitoring plan, pursuant to requests from the Colorado Department of <br />Public Health and Environment (CDPHE). However, field collection <br />procedures, the order of sampling, field measurements and sampling <br />frequency protocols remain essentially unchanged since 1997. <br />Severn-Trent Laboratories (recent name change to TestAmerica), Arvada, <br />Colorado, has performed all of the 20071aboratory analyses and prepared <br />the quarterly sample results. [Note: 7'he laboratory results pages displayed <br />in this report represent only the summary, and not the entire text of the <br />laboratory work. Complete copies of each quarterly report are available <br />from the files at the Keenesburg Mine office.] The water monitoring <br />analysis and process management expertise has been provided by Doty and <br />Associates of Golden, Colorado, as consultants. <br />Ground Water Monitoring and Quality Analysis <br />A formal ground water sampling program for the Keenesburg Mine was <br />initiated in 1992. Ground water quality information has been obtained from <br />six monitor wells located: 1) upgradient, 2) within the disturbance area, and <br />3) downgradient from the mine site. This monitoring program provides a <br />basis for comparison of information between a baseline and the existing site <br />conditions relative to ground water flow and water quality at the site. <br />CEC maintains that the water quality test results, that are obtained from the <br />data collected in the field and from the analytical ground water quality <br />reports, support its contention that the overall groundwater quality in the <br />area has not been adversely impacted by, 1) the earlier Keenesburg Coal <br />AHR-2007 -48- <br />