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>~ TWSNTYMI6B <br />>~ COAI. COMPANY <br />A Cyprus Amax Company <br />Twentyrr, III IIIIIIIIIIIII III <br />29515 Routt County Road # 27 <br />Oak Creek, Colorado 80467 <br />970-879-3800 <br />April 21, 1997 <br />RECEIVED <br />APR 2 91887 <br />Ms. Janet Binns <br />Environmental Protection Specialist <br />Division of Minerals and Geology Division of Minerals is Geology <br />1313 Sherman Strcel, Room 215 <br />Denver, CO 80203 <br />Re: Permit No. C-82-056; Refuse Disposal Area, Third and Fourth Quarter 1996 and First <br />Ouarter 1997 Insoeetioo Reports <br />Dear Ms. Binns: <br />Please find enclosed copies of the above referenced Inspection Reports addressing construction of the refuse <br />disposal area a[ Twentymile Coal Company (TCC) during the third and fourth quarters of 1996 and the first <br />quarter of 1997. These reports constitute the ninth, tenth and eleventh such documents generated to date. Reports <br />for the third and fourth quarters of 1996 had been retained in the mine site files however, I do no[ believe copies <br />have yet been forwarded to the Division. <br />The report for the third quarter of 1996 addresses on-site inspections occurring on July 10 and August I S and 21. <br />The report for [he fourth quarter of 1996 addresses an on-site inspection occurring November 25. The report for <br />the first quarter of 1997 addresses on-site inspections occurring on January 24 and February 10. Four (4) <br />compaction tests conducted during the third quarter of 1996 failed to meet the 90% minimum requirement. Two of <br />the failing sites (#89 and #90) were reworked and retested during the fourth quarter of 1996 and compaction was <br />shown to meet requirements. Recompaclion al two additional sites (#81 and #84) has been precluded to date due to <br />weather conditions. No additional fill material has been placed over these areas pending verification of <br />recompaction. These reports are submitted to document fulfillment of the quarterly inspection requirements as <br />specified by Rules 4.09.1(11) and 4.10.2. <br />Thank you for your cooperation in this matter. If you have any questions or require further information, please <br />contact me al (970) 870-2730. <br />TWENTYMII.E COAL COMPANY <br />,f~/C ~,~-~_ <br />Karl C. Koehler <br />Environmental Engineer <br />/kck <br />cc: Permit No. C-82-056; Refuse Disposal Area Inspection Report file <br />I: DOCIIMEN7ITCCIFOI DELCKUi EFl1INS P. DOC <br />