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<br />Richartl D Lamm <br />Governor <br /> <br />III'I <br />DEPARTtv1ENT OF NATURAL RESOURCES <br />David H. Gelches, ERecutive Director <br />MINED LAND RECLAMATION DIVISION <br />DAVID C. SHELTO N, Director <br />January 9, 1984 <br />Mr. John D. Schmahl <br />Mrs. Marilyn M. Schmahl <br />2301 River Road <br />Grand Junction, Colorado 81501 <br />Re: Surface Rock Pit - File No. M-84-001 <br />Dear h1r, and Mrs. Schmahl: <br />The Division has reviewed the above-referenced permit application <br />following questions and comments. As you know, the Division has s <br />this application for consideration by the Mined Land Reclamation F <br />their March 22-23, 1484 meeting. To allow for Division review of <br />responses to the following questions and comments, please respond <br />by March 2, 1984. <br />A. Exhibit D - Mining Plan <br />nd has the <br />heduled <br />and at <br />n writing <br />of ~1. Will both Parcels A and B be mined simultaneously? a=~ ~~~'~`~~~ S.ar,,, ,r,\ ~.;r ~ <br />~„ , ,r .. <br />n~ ~ What is the anticipated life of this mine? ~t~ y,~s <br />-tip <br />~~~ To what depth will mining occur? ~ M n'"" ""~ G' ~.v 1 L <br />~ 4. A review of the map provided for Exhibit C pertaining to Parce B depicts <br />an overhead powerline transversing the western side from north to outh. <br />Pursuant to Rule 1.56(5) of the Rules and Regulations, the operato roust <br />obtain an executed agreement with the owners of this powerline. T is <br />agreement specifies that any dmnage that may occur because of this mining <br />operation will be compensated for by the operator. ~; <br />g~< 0' <br />,G 5. Will there be any blasting during the mining of the decorative rock? N ~~,pr ,~ <br />~~ 6. The operator specifies in the text of this exhibit and on the ~ ap of <br />~~ Exhibit C that there will be no affect to existing drainages and t at there <br />will be no water diversions of impoundments. The Division is very concerned <br />about the surface hydrology at this site. N review of the snap for Exhibit C <br />depicts a nwnber of drainages in the Parcel A area and one major d ainage in <br />the Parcel B area. Because of the disturbances that will occur to these <br />drainages during mining and the potential for water flowing over t e mine site <br />picking up a significant amount of sediment, the Division believes the <br />operator should commit to constructing some sediment ponds. These sediment <br />ponds would only be for during the mining operation and would be o literated <br />during the reclamation phase. Sediment ponds would minimize the disturbance <br />to the prevailing hydrologic balance, pursuant to Rule 6.2(a) of t e Rules and <br />Regulation. The operator needs to specify the following infonnati n <br />pertaining to the sedimentation ponds. <br />423 Centennial Building, 1313 Sherman Street Denver, Colorado 80203 Tel. ( 03) 8ti6-3567 <br />