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~ oii oiooiooiooooo oiol ~ <br /> <br />LARRY E. O'BRIAN <br />PRESIDENT <br />March 14, 1994 <br />Mr. Carl Mount <br />Division of Minerals <br />Minerals Section <br />13].3 Sherman Stree±, <br />Denver, CO 80215 <br />Dear Mr. Mount: <br />RE: Albert Frei and Sons, Inc <br />Walstrum Quarry, <br />MLRB Permit # M-83-033 <br />C ~ ,.....r irl,au.:~a .. ~..,:..::.. <br />This letter is to request an extension until March 18th, 1994 <br />for turning in the Technical Revision (TR) addressing the items <br />noted in the Inspection Report dated December 8th, 1993. I have <br />been working on the hydrology information and should have it <br />comple±ed by March 17th, 1993. Mr. Frei's TR will include the weed <br />control plan, copies of the Stormwater NPDES permit and the <br />watershed hydrology calculations for the retaining pond. <br />Thank you for your help and if you have any questions please <br />call me at 423-7297 <br />ENVIRONMENT, INC. <br />Stevan L. O'Brian <br />Vice President <br />CC Files <br />FAXED 3/14/94 <br />7985 VANCE DRIVE, SUITE 205A <br />ARVADA, COLORADO 80003 <br />303-423-7297 <br />RFI,EIti~F^ <br />and Geology <br />irl~',r 1 ~ j~~~, <br />S::ite 215 <br /> <br />