2002-12-24_REVISION - M1977151 - Laserfiche WebLink

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t~~ STATE OF COLORADO DIVISION OF MINERALS AND GEOLOGY Department of Natural Resources 1313 Sherman St., Room 215 Denver, Colorado 60203 DIVISION O F Phone: (303) 866-3567 MINERAL S FAX: (303) 832-8106 & GEOLOGY December 24, 2002 M EN I N GM S A F EOT Y Bill Owens Rex Hiner Governor R. M. Hiner Construction Co., Inc. Greg E. Walther 2220 "G" StreeT Executive Director Greeley, CO 80631 Ronald w. cattany Acting Division Director RE: Pemlit M-1977-151 Greeley Pit, R.M. Hiner Constmctions Co., Inc., Diesel Fuel Release ~j~-~ Dear Mr. Hiner, The Division of Minerals and Geology (DMG) conducted an inspection on December 20, 2002 at the Greeley Pit, located in Weld County at 2220 "O" Street, Greeley, Colorado in response to a report from the Weld County Department of Public Health and the Environment that a diesel fuel leak had occurred on the site on or about December 7, 2002. ht response to the fuel release and to observations made at the inspection, DMG contacted CDPHE of the spill. During the inspection of the site, it was observed that a large amount of contaminated material had been excavated and stockpiled upslope of the azea where the release occurred. This stockpiled material was contained within a berm, but it appeazed that no liner material was placed beneath the stockpile. Diesel fuel was sfill present in the azea of the release location. It was uncleaz as to the origin of the fuel present at the spill site, but it is possible that the contaminated material stockpiled upslope of the release area is draining into the soil and the fuel is migrating down slope, thus recontaminating the spill azea. At this time, the DMG is not awaze if any efforts have been made to identify the extent of the contamination or whether any of the fuel has migrated offsite. Currently it is evident that the excavated material, the material down slope of the excavated material, and the adjacent pond have all been affected by the fuel release. Despite the abatement activities that have already been accomplished by R. M. Hiner Constmction, Co., Inc., there is still concern regazding the contaminants remaining at the site, and that contaminants may be migrating from the release location. The goals of the DMG involving the situation at the Greeley Pit are: • to ensure that no contaminated groundwater or surface water is ultimately discharged into the neazby Poudre River, • to ensure that no contaminated groundwater or surface water migrates off the site, • to ensure that the contaminated materials at the site aze handled and disposed of properly, • and to ensure that adequate practices aze incorporated to assure that a similar incident does not occur.