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C TWENTYMIL6 <br />~ COAL COMPANY <br />A Cyprus Amax Company <br />iii iiiiiiiiuiii iii <br />Twentymile Coai t,ompany 9 <br />29515 Routt County Road #27 <br />Oak Creek, Colorado 80467 <br />970-879-3800 <br />RECEIVED <br />August 27, 1999 AUG 3 0 1999 <br />Ms. Carla Lenkey Division of Minerab 8 Geology <br />Colorado Department of Public Heal[h and Environment <br />Water Quality Control Division -Permits and Enforcement <br />4300 Cherry Creek Drive South <br />Denver, CO 80222-1530 <br />RE: PFRMiT C10-00271¢; i li.Y 1999 D R S iRMiTTAI. <br />Deaz Ms. Lenkey: <br />Please find enclosed the above referenced discharge monitoring report for the period from July 1, 1999 through <br />July 31, 1999. No permit limitation exceedences occurred during this period. <br />Outfa11007 discharged during only one week of July, which reflects as a shortage in the frequency of analysis' <br />for reported parameters. <br />Outfalls 002„004, OOS, 006, 008, 016 and 017 did not discharge during this period. Outfal1020 has not been <br />constructed yet; therefore, there is no discharge to enable chemical or toxicological testing to date. <br />Outfalls 001, 005, and 007 are being tested for Hardness in addition to the required parameters. TCC is conducting <br />same internal sampling to further explain some issues that have previously been in question with the NPDES <br />requirements. A copy of these results is included in the submittal. <br />Please contact me a[ (970) 870-2730 for any further questions or additional information. <br />Twentymile Coal Company <br />ve, ~1o~-~a.~cR.,.) <br />Joe hoemaker <br />Environmental Specialist <br />enclosures <br />cc: DMG <br />CWPS Permit No. CO-0027154 file <br />