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Dorchester Coal Company 5351 Roslvn Englewood, Colorado S01 I I Writer's Direct Dial Number 1303)741-1578 July 23, 1982 Ms. Carol Russell Mined Land Reclamation Division 1313 Sherman Street #423 Denver, Colorado 80015 JUL 23 1982 Re: Technical Revision Dorchester #1 Coal Loadout Facility Permit 79-39 Dear Carol: MINED LAND RECLAMATIGN Colo. Dept. of Natural Resource iiiiiiiuiiiiiiiiii As a result of a short term deferral of coal shipments and in anticipation of a possible rail strike, the Dorchester #1 Mine will require additional coal stockpile space to allow the current rate of production to continue. We are therefore proposing a technical revision to our existing permit to allow for a small expansion of our existing Loadout facility west of Florence, Colorado. The additional area to be utilized is depicted on the enclosed map. The additional disturbance on the western end of the Loadout will include additional land level- ing. All topsoil will be removed (minimum stripping depth 12°) from this area and deposited at the existing topsoil stockpile. (The entire stockpile is scheduled for reseeding with the approved seed mix this fall.) Following topsoil removal, the area will be leveled with the current 2:1 slope being moved approximately 200 feet to the north. The excavated material will be used to extend the loading area to the east and to fill in trench which currently exists adjacent to the current sediment pond. The area included in the eastern extension of the Loadout has been repeatedly disturbed by past railroad construction and topsoil is limited to small isolated pockets surrounded by the railroad disturbance. Prior to exten- sion of the Loadout pad, all topsoil which can be salvaged from the area will be stripped to a minumum depth of 12" and placed in the stockpile. The pad will then be extended as previously described. The additional storage and loading activities are fully covered under Dorchester's current Emission Permit #C-13.206-1,-2. At present Dorchester plans to berm the additional area and convey drainage to a single discharge point covered in our current NPDES permit #CO-0037109. A comprehensive drainage and sediment control plan with appropriate maps, descriptions and supporting calculations will be submitted as Attachment I to this request. ,4 Subsidiary of Dorchester Gas Corpora ion