HYDRO29557 - Laserfiche WebLink

Home Browse Search

iii iiiiiiiiniii iii 999 July 26, 2001 Ms. Carla Lenkey Colorado Department of Public Health and Environment Water Quality Control Division -Permits and Enforcement 4300 Cherry Creek Drive South p Denver, CO 80222-1530 p ~~ R C RE: PERMIT CO-0027154: JUNE 2001 DMR SUBMITTAL Dear Ms. Lenkey: RAG Twentymile Coal Company 29516 Routt County Road # 27 Oak Creek, Colorado 80467 (970)879-3800 D,E, Fr RECEIVED JUG 31 2001 Division of Mine~is g Ge0 b9Y Please find enclosed the above referenced discharge monitoring report for the period June 1, 2001 through June 30, 2001. During the period only ponds A (point 001), B (point 003), D (point 005), E (point 006), and F (point 007) discharged to Foidel Creek. No permit excursions were noted for this period. However, Outfall 007 did not commence discharging until June 25, and Outfall 003 only discharged the week of June 11, which allowed for only one sample this month at those points. Quarterly Whole Effluent Toxicity (WET) tests were conducted the week of June 4, 2001 for Outfalls 001 and 005. They passed for both species, with "Concentrations with Statistically significant Difference in Lethality" reported at >100°/,. Quarterly Whole Effluent Toxicity (WET) tests were conducted the week of June 25, 2001 for Ouffall 007. It passed for both species, with "Concentrations with Statistically significant Difference in Lethality" reported at >100%. Copies of the CDPS WET Test Report Farms for these tests are included with this submittal. Please note that the new DMR farms we recently received for reporting WET test results are missing one parameter, %Effect Stanre 7 Day for Pimephalles Chronic TCP38, Code "P". As such, we modified an existing DMR sheet to input this missing parameter. The modified sheet is attached to the DMR with the other WET test parameters. The WET tests conducted this quarter required extra visits to these sites, thus producing additional field parameter values, which were calculated into the statistics reported on the DMRs. Outfalls 002, 004, 008 and 009 did not discharge; and therefore have no chemical or toxicological tests during this period. Outfall 020 has not been constructed yet; therefore there is no discharge to enable chemical or toxicological testing to date. Points 010, 016 and 017 have been eliminated from this permit. In order to reduce the amount of paper work, the following certification will be substituted Tor the actual DMR forms to cover the ouffalls, which did not discharge. CERTIFICATION I certily under penalty o(law that 1 have personally examined and am lamiliar with the information submitted herein; and based on my inquiry of those individuals responsible for obtaining the inlonnation, 1 believe the submitted inlomtation is true, accurate, and complete. 1 am awa2 that there are significant penalties /or submitting lalse information, including the possibility of one and imprisonment. See 1B U.S.C. § 1001 and 33 U.S.C. § 1319. (Penalties under these statutes may include fines up to $10,000 and/ormaximum impnsonment o/between 6 months and 5 years.) (/JLti_~.CZ~,~ /~ 1-29 i Richard Mills, Environmental Manager Date Please contact me at (970) 870-2751 Tor any further questions or additional information. Twentymile Coa/l Co any ~~ ` Brian A. Watterson enclosures cdrGllfG