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RECEIVED <br /> October 24m,2022 OCT 2 8 2022 <br /> Mr. Eric Scott, Reclamation Specialist DIVISION OF RECLAMATION <br /> Division of Reclamation, Mining and Safety MINING AND SAKTY <br /> 1313 Sherman, Room 215 <br /> Denver, Colorado 80203 <br /> RE: Hunt Water LLC(M-2018-027)—Technical Revision 2 <br /> Dear Mr. Scott: <br /> Hunt Water, LLC is requesting a Technical Revision to the M-2018-027 Reclamation Permit. The proposed <br /> changes to the mine site are: <br /> - Road entrance improvements to increase truck trips. <br /> - Retention pond located south of the entrance. <br /> - Mining inside the permit boundary to incorporate recently plugged and abandoned oil and gas wells <br /> to the west of the pit. <br /> - Reduced mine highwall and reclamation slope offset. <br /> - Proposed bore under Union Pacific Railroad and Highway 85(CDOT)from Hunt Reservoir#1 to <br /> Hunt Reservoir#2. <br /> - Mine Plan and Reclamation plan updates. <br /> The proposed changes will affect the Mining Plan Map,and the Reclamation Plan Map(see attached). <br /> Increased demand and truck traffic required entrance improvements on to Highway 60. The entrance <br /> improvement that are included inside of the permit boundary is the paving of approximately 106'of the <br /> entrance roadway and widening. A retention stormwater pond is being constructed inside the permit <br /> boundary. The 24-inch pipe extends approximately 36 feet into the site as measured from the permit <br /> boundary. <br /> Five Kerr-McGee oil and gas wells that were interior of the slung wall have been plugged and abandoned. <br /> In order to maximize the recovered aggregate resource and the water storage at the site, Hunt Water <br /> proposes to extend the mine limit to 30 feet from the slung wall in these locations(see attached Mine Plan <br /> Map). With the exception of Lucky 2 Amoco 34-6, abandonment reports have not been provided to the <br /> Colorado Oil and Gas Conservation Commission as of the writing of this TR but will be provided to the <br /> Division when made available.The plugged and abandoned wells are: <br /> ➢ Thompson 25-6 <br /> ➢ Thompson 24-6 <br /> ➢ Thompson 33-6A <br /> ➢ Thompson 23-6 <br /> ➢ Lucky 2 Amoco 34-6(COGCC status report included) <br /> The mine highwall will be reduced to accommodate further aggregate extraction. The 30-foot offset from the <br /> inside of the slurry wall will be reduced to a 20-foot offset and the slope will be mined at three horizontal to <br /> one vertical to a maximum depth of 30-feet. An updated slope stability analysis and technical memo is <br /> attached to this TR. <br />