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Feb-1r5-99 04:19P Jarorrte Gamba Assoc <br />• <br />JEROME GAMBA & ASSOCIATES, INC. <br />CONSULTING ENGINEERS & LAND SURYEYOR9 <br />n34tn S• REEI. SW 7E 7p <br />P0. BJx I+Sd <br />GLE.NR000 SPPMd3 ALORa1CA dt50P '+`.S <br />Pn~]fVE. d7p+3+52+i+C fAK~+37019+5-~+10 <br />Bill Roberts <br />Western Slope Aggregate <br />P. O. Box 1149 <br />Carbondale, Colorado 8 L 623 <br />Re: New mine plan for Blue Pit, MLRB permit A M87-207 <br />Dear Bill: <br />9 7.94 II I'' II I II' II IIII'll <br />P.02 <br />16 February 7999 <br />In compliance with your request, we ere in the process of preparing a revised tine plan of <br />the Blue ?it, north of Carbondale, in Garfield County. to be submitted as a Technical <br />Revision to the Colorado Division of Minerals and Geology. <br />We have established our GPS survey model network for the area and have surveyed the pit <br />and immediate area for the Dreparetion of ari "existing conditions" map of the operations. . <br />A 2 foot contour interval map is being prepared which wilt define the existing pit and the <br />topsoil and overburden stockpiles. as well as the haul road and existing irrigation ditches. <br />From this data vve will be able to compute the remaining gravel reserves which can be <br />recovered in order to reclaim the area with 3 horizontal to 1 vertical final slopes. The <br />reserve calculations will consider tfie maximum use of the inpface and stocxpiled <br />overburden for ;he slope restoration. <br />Milting operations to accomplish the recovery of the remaining gravel reserves will be <br />planned in phases to minimize relocation of overburden soils. <br />While vve are making progress with this work, 1 do not believe that it will be possible to <br />have it L:ompiete and ready for submittal by ;he end of this month, as requested an the <br />inspection report dated 70 December 1998. i therefore recommend that you request an <br />extension of time for the submission of the Technical Revision until April 1, 1999. <br />It you have any questions, please tail. <br />espe tfully, <br />~ J ome F. Ga j ' <br />~~ ' <br />