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P ~une 7, 2007 G. Russell Means State of Colorado Division of Reclamation, Mining and Safety 101 South Third Street, Room 301 Grand Junction, CO 81501 Dear Mr. Means: REGF~~E® JUN l 12007 GRAND JUNCTION FIELD OFFICE DIVISION OF RECLAMATION MINING 8 SAFETY rI Re: City of Rifle M~906TJ71 /1ff - a' 00'7 _ °3 r/ The City of Rifle is submitting information as requested by you after review of the application for the City of Rifle's pit run borrow area. The Division of Reclamation, Mining and Safety had the following questions or requested clar'fiications to the application. Our response is following each of your items: 1) As part of the general site description it is noted in the water resources portion that any water will be discharged into borrow ditches after sedimentation removal and then discharged into the Colorado River. Although mentioned in later text, please clarify in this section that there will be an on site sedimentation pond and the City has applied for a Stormwater permit through the Colorado Department of Health. a. The City of Rifle has recently applied for a permit. The information has also been added to the application. 2) Under Rule 3, an operator is required to institute some form of erosion control for topsoil stockpiles. Please clarify what measures the City will take to protect the topsoil from wind and precipitation erosion. Usually staff suggests using the approved seed mix. This allows the operator to see what is or is not viable and allows a seed bank to be established with approved species. a. The City will use the approved seed mix. 3) It is noted on the Mining Map that ongoing concurrent revegetation will occur on topsoil and overburden piles. However, within the Reclamation Plan, Exhibit D, no concurrent reclamation is noted. Please clarify when reclamation efforts will be initiated. a. The City will revegetate the topsoil and overburden piles concurrently with mining. 4) Please clarify whether mulch and / or fertilizers will be needed during reclamation and 'rf so in what quantities. a. Straw mulch will be used but no fertilizer is anticipated to be needed. 5) The proposed seed mix is very versatile but contains only grasses. It is noted on the Reclamation Map that asagebrush /grass mix will be used. Staff has noted in recent years that shrubs tend to fair best at first as grasses fill in. Please revisit the proposed seed mix and add in two shrubs such as four winged saltbrush, sagebrush and/ or rabbit brush. a. The seed mix will include fourwinged saltbrush and rubber rabbitbrush. These two items have been added to the application. CITY O F R I F L E 202 RAILROAD AVENUE • P.O. BOX 1908 • RIFLE, CO 81650 W W W. R I F L E C O. O R G