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<br />DELTA COUNTY, COLORADO <br />Office of the County Engineer <br />Della County Courthouse <br />501 Palmer Street, Suite 227 <br />Delta, Colorado 81416-1796 <br />Phone: 970-874-2035 or 874-59]4 FAX 970-874-2455 <br />Job Number 2010304 <br />02 February 2005 <br />Division of Minerals and Geology <br />1313 Sherman St., Room 215 <br />Denver. CO 80203 <br />FAX 303-832-8106 <br />1 ~-~ ~ - ~. .. ~ <br />(.~uJ <br />Grand Junction Office FAX 970-241-1516 (Steve Shuey) <br />Re: Technical Revision No. 1 ~ <br />Preliminary Adequacy Review <br />Pig Mesa Pit, Delta County <br />Permit No.: M-1978-168 / <br />In response to DMG letter dated January 28, 2005 by Mr. Steve Shuey, Delta County is <br />responding to the adequacy issues as follows: <br />Issue 1: <br />Commit to a reduction of current mining slopes to a grade of 3H : 1V until mining returns <br />to this area. <br />Response to issue 1: <br />Delta County agrees to a reduction of the current mining slopes to 3:1 as requested. <br />Issue 2: <br />Prepare and submit a weed control plan. <br />Response to Issue 2, weeds: The Delta County weed control coordinator has prepared <br />a weed control plan for this Pit, That plan is attached. <br />Issue 2: <br />Submit an erosion control plan. <br />Response to Issue 2, erosion. The County will lay back the slopes as requested. We <br />will construct up to three water bars perpendicular to the face of the slope to discourage <br />erosion on the slopes. We will construct a berm along the top of the slope to prevent <br />surface water from running down the face of the slope. We will berm the perimeter of <br />the entire disturbed area to contain all surface water within the disturbed area. No <br />surface water will be permitted to leave the idle site. <br />Issue 3: <br />Clarify whether the asphalt plant and wash plant will be relocated. <br />Response to Issue 3. No relocation of the asphalt plant or wash plant will take place. <br />Issue 3: <br />Haul road <br />Page t of 2 <br />