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S rATE OF GOLpl+AhO Wf~ IL IAMM. Ilnvvin ru <br />DEPARTMENT OF NATURAL flES0~5 III'll'll 111 "~I'II <br />D. Monte Pascoe, Execuirve Director <br />999 <br />w <br />' Dave .Stout <br />12055 West Second P1. <br />P.O. Box 15265 <br />`~~ Lakewood, CO 80215 <br />.ti <br />.,t <br />Dear Dave, <br />. •.~ <br />...i <br />1 <br />1 <br />A11NEU LAND NE(~LAA1A'fION <br />423 Centennial Building. 1313Sherman Street <br />Denver, Colorado 80203 Tel. (303) 839-3567 <br />David C. Shelton <br />June, 23, 1981 DiEeotOr <br />On our last inspection trip of June 22, several deficiencies in sediment control <br />were identified. The entire sediment control system for the facilities area is <br />in need of revision. Water which runs off of the coal stockpile at present has <br />no clear path to either the sediment pond or the pit. As reclamation work is in <br />process in the obvious path of drainage from the coal stockpile a remedy of this <br />problem is not practical until the final regrading is completed. Wyoming Fuels <br />should provide a design for a collection ditch to convey runoff from the coal <br />stockpile area to the sediment pond and estimate the date of construction. <br />The south end of the facilities area near the office and shop is drained by a <br />ditch which does not enter a sediment pond but discharges into an undisturbed <br />area. Wyoming Fuels needs to provide a system by which runoff from this area <br />enters either the pit or a sediment pond. This should be done as soon as <br />possible. A culvert under the road, designed to carry the estimated 10 year <br />24 hour peak flow and a continuous ditch system will be sufficient. <br />The provision and acceptance of the revised sediment control system design will <br />be required prior to issuance of a mining permit. <br />Please call if clarification of these concerns is necessary. <br />Sincerely yours <br />//~ !J/~ <br />Ricflard +~omingue +% / <br />Reclamation Specialist <br />I:~ <br />RD:gmh <br />