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*GCC <br /> Rio Grande <br /> M2002-004 TROB <br /> Complied! 0 Violations <br /> 2 Minor Infractions ,Ipl/jle/awa <br /> May 25, 2021 <br /> Mr. Patrick Lennberg RECEIVED <br /> Colorado Division of Reclamation, Mining, and Safety <br /> Department of Natural Resources JUN U 12021 <br /> 1313 Sherman Street, Room 215 <br /> Denver, CO 80203 DIVISION OF RECLAMATION <br /> MINING AND SAFETY <br /> Re: Technical Revision TR-08 to DRMS Permit M-2002-004 <br /> Proposed Monitoring Well Installation Work Plan for Groundwater Monitoring <br /> Dear Mr. Lennberg: <br /> GCC Rio Grande Inc. (GCC) owns and operates the Pueblo cement plant and associated on-site <br /> limestone quarry operations. GCC has prepared the enclosed Technical Revision (TR) requesting <br /> a revision to the DRMS Permit M-2002-004 to install additional groundwater monitoring wells at <br /> the facility, as supplemental to the existing compliance groundwater monitoring wells, for <br /> improved hydrogeologic characterization and better spatial distribution of groundwater <br /> compliance monitoring at the site. <br /> With this request, GCC is submitting a TR Cover Sheet and is enclosing remittance in the form of <br /> a check in the amount of $216.00. GCC looks forward to working with DRMS to approve and <br /> implement this expansion of groundwater monitoring for its Pueblo facility. If you have questions <br /> or concerns regarding this submittal, please do not hesitate to contact me at (406) 285-4977. <br /> Sincere, <br /> 71� <br /> Gr Gannon <br /> Environmental Manager <br /> Enclosures <br />