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7_)C01 <br />til <br />CERTIFIED MAIL <br />RETURN RECEIPT NO. 7009 2250 0001 0627 6535 <br />Date: <br />Mr. Allen Sorensen <br />Division of Reclamation, Mining and Safety <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />9 <br />AGGREGATE <br />INDUSTRIES <br />Re: Permit No. M-2001-016 - Fredstrom Resource <br />Technical Revision Request to Temporarily Suspend Groundwater Monitoring <br />Dear Allen: <br />The above-referenced permit was approved by the Division in 2001. Due to depressed market conditions, <br />Aggregate Industries (Al) has not commenced mining at this site. Al has, however, conducted several <br />years of ground water level monitoring at the site. The objective of the water level monitoring program <br />was to define pre-mining, or baseline, groundwater data against which potential impacts during mining <br />can be compared and to assist with establishing post-mining reclamation objectives. With over nine years <br />of monitoring data having been collected to provide this baseline information, and with no near-future <br />plans to commence mining, Al is requesting that groundwater monitoring at Fredstrom Resource be <br />temporarily suspended until such time as mining of the site does commence. <br />The permit does not require that data be submitted to the Division, so that has not been done; however, <br />copies of all data gathered from May 2000 through February 2010 are enclosed for the Division's <br />reference. As you and I discussed during a bond reduction inspection of the site on January 11, 2010, Al <br />commits to resume baseline monitoring prior to future mining activities to assess any changes in the <br />groundwater hydrology that may be the result of changes in the surrounding area. Al proposes to re- <br />commence such monitoring one year prior to mining. <br />As this request is considered a technical revision to the permit, we are enclosing a check in the amount of <br />$216.00 for the technical revision fee. We respectfully request your favorable consideration in this <br />matter. If you have any questions or need additional information, please call me at (970) 336-6526. <br />Very truly yours, <br /> <br />Connie N. Davis <br />Land Advisor <br />Enclosures <br />cc: Aggregate Industries-WCR, Inc. <br />Aggregate Industries <br />West Central Region, Inc. <br />1707 Cole Blvd., Suite 100 <br />Golden, CO 80401 <br />Connie N. Davis, Land Advisor <br />P. O. Box 337231, Greeley, CO 80633 <br />Phone: 970-336-6526; Fax: 970-378-6856 <br />MAR 2010 <br />oivlsion of Reclamation, <br />Mining & Safety <br />Telephone: 303-985-1070 An Equal Opportunity Employer