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DIVISIOMI OF RECLAMATION, MINING AND SAFETY <br />Department of Naturai Resources <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />Phone: (303) 866-3567 <br />FAX: (303) 832-8106 <br />COLORADO <br />D I V I S I O N O F <br />RECLAMATION <br />MINING <br />-&- <br />SAFETY <br />Bill Ritter, Jr. <br />Governor <br />March 17, 2008 <br />Ms. Connie N. David <br />Aggregate Industries <br />P.O. Box 337231 <br />Greeley, CO 80633 <br />Harris D. Sherman <br />Executive Director <br />Ronald W. Cattany <br />Division Director <br />Natural Resource Trustee <br />RE: Diesel Fuel and other oil release event, request for end to dewatering, 83rd Joint Venture <br />Pit, Permit Nay. M-1992-069., <br />Dear Ms. Davis: <br />Thank you for the information concerning handling of diesel and other oil contaminated soils at <br />the 83rd Joint Ventures Pit. Moving these materials out of the area so they can "air out" prior to <br />incorporation into surface soils at the site is an acceptable method of disposal of the diesel <br />contaminated materi~>tl. Also acceptable is to take the other oil contaminated material and <br />incorporate it directly into the asphalt plant feed at the Riverview Resource mine (MLRB Permit <br />M-1999-098). Thank ;you for your attention to these matters. <br />With the completion of the above activities the mitigation measures for the fuel and oil spills are <br />now complete. AggrE~gate Industries may cease dewatering the 83rd Joint Venture Pit. <br />If you have any questiion, please do not hesitate to call me at 303-866-3863. <br />Sincerely, <br />~~-- <br />Carl B. Mount <br />Senior Environmental Protection Specialist <br />STATE OF COLORADO <br />Office of <br />Mined Land Reclamation Office of <br />Denver Grand )unction Durango Active and Inactive Mines <br />