Laserfiche WebLink
STATE OF COLORADO <br />DIVISION OF RECLAMATION, MINING AND SAFETY <br />Department of Natural Resources <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />Phone: (303) 866-3567 <br />FAX: (303) 832-8106 <br />February 24, 2009 <br />COLORADO <br />D'IV[sION OF <br />RECLAMATION <br />MINING <br />SAFETY <br /> Bill [titter, Jr. <br />Mr. Joel Bolduc Governor <br /> <br />HO1Ctm, (US) Inc <br />3500 Highway 120 <br />Florence, CO 81226 Harris D. Sherman <br />Executive Director <br />Ronald W. Cattany <br />Division Director <br /> Natural Resource Trustee <br />Re: Proposed Groundwater Monitoring Plan, DRMS Permit# M-1977-344 Portland Cement Plant <br />Dear Mr. Joel <br />To fulfill the requirements of Technical Revision # 6, for permit # M-1977-344, Portland Cement quarry and <br />plant, ground water monitoring plan, the Division sets the following monitoring and compliance wells. <br />The site is located in Fremont County, North side of the Arkansas River. Groundwater flows in the area in a <br />southerly direction towards the river. <br />Holcim will sample MW-7 WELL Compliance well, annually for the following parameters. <br />Total Dissolved Solids (TDS) 3,918 MG/L <br />Sulfate (SO4) 2,080 MG/L <br />Potassium (K) 17 MG/L <br />Sodium (Na) 226 MG/ L <br />Iron (Fe) 4.5 MG/L <br />Manganese (Mn) 0.88 MG/L <br />In addition Holcium will drill in April 2009, compliance well MW-13 near the entrance to the quarry and <br />will provide five quarters of data, so the Division will determine the appropriate parameters for the well. and <br />set compliance parameters. In addition to MW-7, Holcim will also monitor MW42, as a background well <br />and provide the same parameters as MW-7 on an annual basis. When two consecutive parameters are <br />exceeded more than 10%, during the reporting year for compliance well MV-7, Holcim will increase the <br />frequency of monitoring to bi-yearly. If the upward trend continues, Holcim will submit an explanation and <br />provide a remedial plan. <br />If you have questions, please 'contact me at 302 866-3567 xt 8129. <br />Sincerely, <br />erhan Keffele <br />Office of <br />77 <br />Office of. .