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BBL <br />BLASLAND, BOUCK & LEE. INC. <br />engineers A screnfls is <br />Transmitted Via U.S. Mai! <br />November 26, 2003 <br />Mr. Larry Oehler <br />Environmental Protection Specialist , <br />Division of Minerals and Geology <br />Department of Natural Resources <br />1313 Shemlan Street, Room 215 <br />Denver, Colorado 80203 <br />Re: Holcim ([IS) Inc. Portland, Colorado Quarry Groundwater Monitoring Report <br />DMG Permit No. M-1977-344, Technical Revision No. 6 <br />BBL Project # 254.50.002 <br />Dear Larry <br />Please find enclosed two copies of the Holcim (US) Inc. Groundwater Monitoring Report, which <br />summarizes the recent installation of groundwater monitoring wells at the Holcim Portland <br />quany, and the latest round of groundwater sampling results. We will be sampling MW-10 for <br />three more quarters, and will relay that data to you to complete the requirements of Technical <br />Revision No. 6. <br />Please contact me or Mike Gantenbein at the quarry if you have any questions. <br />Sincerely, <br />BLASLAND, BOUCK & LEE, INC. <br />Al/~P. . <br />~Y <br />Vice President <br />Enc. <br />cc: Mike Gantenbein, Holcim (US) Inc. <br />Paul Detterline, Holcim (iJS}, Inc. <br />147 42 Denver WesT Parkway • Suite 350 • Goltlen, CO 80401-3190 <br />Tel (303) 231-9715 • Fox (303) 231-9571 • www.bbl-inc.com • offices natlonwitle <br />IaHolcSm\GW Monitoring Report\95332186.doc <br />