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J-2 Contracting Co.—DPG Pit— Technical Revision No. 1 Adequacy Review Response <br /> File No. M-2019-028 <br /> -2- <br /> Response: The maps were provided with the update letter in a drop box folder <br /> previously and hard copies were mailed out to the Division on July 21, 2021. Per your e- <br /> mail you received the hard copies on July 30, 2021. <br /> Exhibit C — Mining Plan Maps, Exhibit D — Mining Plan, Exhibit E — Reclamation Plan and Exhibit F — <br /> Reclamation Maps <br /> 2. The Operator proposes revised acreage values for the five (5) phases of the Mining and <br /> Reclamation Plans in the technical revision cover letter. The acreage values differ between the <br /> Mining and Reclamation Plans as indicated in the chart below. Please explain why the proposed <br /> acreages are not the same for the Mining and Reclamation Plans for each phase and revise the <br /> cover letter and/or the proposed Exhibits accordingly. <br /> Proposed Mining Plan Acreage Proposed Reclamation Plan Acreage <br /> Phase 1 10.44 12.99 <br /> Phase 2 54.21 63.81 <br /> Phase 3 10.29 15.13 <br /> Phase 4 93.03 101.96 <br /> Phase 5 19.39 22.26 <br /> Response: The maps have been updated so the acreages match, previously the mining <br /> plan acreages only included acreage from the top of the mining slope that was being <br /> mined and did not include disturbed area. The phase acreages now match for both the <br /> Mining Plan and Reclamation Plan. <br /> 3. The revised Reclamation Plan Maps (Exhibits F-1 and F-2) indicate Reservoir 1, which is a <br /> combination of Phase 2 and 5 will be 69.69 acres. In Exhibit F— Reclamation Plan, the Operator <br /> states Phase 2 is 63.81 acres and Phase 5 is 22.26 acres for a total acreage of 86.07 acres not <br /> 69.69 acres. Please explain this discrepancy and revise the proposed Exhibits accordingly. <br /> Response: The Reclamation Maps have been updated so the acreages match the <br /> description in the Reclamation Plan. The discrepancy was the reservoir acreage was <br /> called out for the normal water surface acreage. <br /> 4. The revised Reclamation Plan Maps (Exhibits F-1 and F-2) indicate Reservoir 2, which is <br /> Phase 4 will be 88.24 acres. In Exhibit F — Reclamation Plan, the Operator states Phase 4 is <br /> 101.96 acres, not 88.24 acres. Please explain this discrepancy and revise the proposed Exhibits <br /> accordingly. <br /> Response: The Reclamation Maps have been updated so the acreages match the <br /> description in the Reclamation Plan. The discrepancy was the reservoir acreage was <br /> called out for the normal water surface acreage. <br /> 5. The proposed Exhibit F-1 Reclamation Plan map appears to indicate the DCP Midstream 30' <br /> Pipeline ROW (Rec. No. 2428088) and a Noble gas line will be mined through and backfilled <br /> during Phase 3. Please confirm the Operator has obtained agreements with both companies to <br /> mine through or relocate the easement and gas line. Please provide copies of the agreements <br /> for the Division's file. <br /> V, 305 Denver Avenue—Suite D•Fort Lupton CO 80621 •Ph: 303-857-6222•Fax: 303-857-6224 <br />