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iii iiiiiiiiiiiii iii <br />C TWBNTYMI6E <br />~ COAL COMPANY <br />A Cyprus Amax Company <br />June 24,1999 <br />Ms. Cazla henkey <br />Colorado Department of Public Health and Frtvaorvnent <br />\Ga[er Quality Control Division - Peanits and Enforcement <br />4300 Cherry Creek Drive South <br />Denver, CO 80222-1530 <br />RE: PERMIT GO-0027154• MAY 1999 DMR SUBMITTAL <br />Dear Ms. l.enkey: <br />RECEIVED <br />JUN 2 81999 <br />pivision of Mj(lgtals 8 Geology <br />Please find enclosed the above referenced dischazge monitoang report for the period from May 1, 1999 through <br />May 30, 1999. No peanit limitation exceedences occurred during this period. <br />Outfalls 004, and 017 did not discharge during this period. Outfall 020 has not been constructed yet; <br />therefore, there is no discharge to enable chemical or toxicological testing to date. <br />Outfalls 002, 006, 008 and 016 discharged during only three weeks of May, which reflects as a shortage <br />ut the frequency oEanalysis' for reported parameters. <br />The measuring device at outfall 009, a v-notch weir, was observed to be developing some leakage. Necessary <br />repairs will be performed as soon as is practical. <br />OutEalls 001, 005, and 007 aze being tested for Hardness in addition to the required parameters. TCC is conducting <br />some internal sampling to further explain some issues that have previously been in question with the NPDES <br />requirements. A copy of these results is uuluded in the submittal. <br />Please contact me at (970) 870-2730 Eor arty further questions or add;tional information <br />Twentymile Coa] Company <br />~~ ~~A~ <br />Joe Shoemaker <br />Environmental Specialist <br />enclosures <br />Twentymile Coal Company <br />29515 Routt County Road p27 <br />Oak Creek, Colorado 60467 <br />970-879-3800 <br />cc: DMG <br />CWI'S Perrrrit No. CO-0027154 file <br />