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zzCC-MC-X <br />Erica Crosby <br />Environmental Protection Specialist <br />Division of Minerals and Geology <br />1313 Sherman Street, Room 215 <br />Denver, Colorado 80203 <br />October 31, 2007 <br />Via Certified Mail <br />Return Receipt Requested <br />7004 2890 0003 2043 0154 <br />Subject: Cemex, Inc., Lyons Quarry, Permit No. M-77-208 - -F?_rfQ <br />Dear Erica: <br />- V ( v1 e h+ Z' ? i IV) {?,Gk in ) C P14 ?` <br />Cemex would like to implement the next phase of its reclamation activities in the Lyons Quarry, <br />Permit M77-208 by placing spent kiln refractory brick into C-Pit for final disposal (identified as <br />such in the original 1977 reclamation plan and subsequent revisions). The total amount of <br />material is estimated to be less than 200 tons of material. A certification of inert material is <br />attached to this notification. <br />We have enclosed all original material safety data sheets (MSDS) for kiln brick materials, as <br />well as conducted and enclosed a full analysis of the material. Both identify the material as inert. <br />Please let me know if you have any questions. <br />Sincerely, <br /> <br />Monica Sowders <br />Environmental Manager <br />5134 Ute Hwy <br />Lyons, Co 80540 <br />303-823-2115 <br />Nov ?D <br />06 <br />o;V,$;o 200 <br />pgandsa,atOfl <br />ty <br /> <br />Lyons Plant <br />P.O. Box 529, Lyons, CO 80540. USA, (303) 823-2100, Fax (303) 832-2199