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~, , <br /> <br />July 29,1999 <br />Ms. Coda Leakny <br />Coloxgdo Depettmant of Public Healtb acrid Eaviroomeat <br />Water Qaality Control Diviaim - Petmip 'pad 8oforceotmt <br />4300 Chewy Cmek Dave South <br />Deaver, CO 80722.1330 <br />1i8: P1aR~tIT CCa.00 7 j~ J,~_399Q Dj~ cit9 Ar <br />Dear Ms. Leakey. <br />RECEIVED <br />JUL 3 01999 <br />Division of Minerals & Ge0ltlgy <br />Please find eacJosed the above mkmaced discharga moaimdrtg repotb 6oz the period from June 1,1999 ehrnugh <br />June 30,1999. No pa®it litaitstioa exceedmce occurred dtamg this pecod. Also enclosed am quertaly WST <br />mporb far the period from Apa7 1, 1999 fhmugh June 30.1999. Two peaait litaitatton etrcrrsddraces ore aomd <br />in the WET tesulp. <br />Chttfell 009 dlseharged dutdag only two weeks of June, which re9ecn u a thactage k the'f¢qumcy of analysis' <br />for mpomd pamatctea, <br />Ourfplls 007.,004, OOS, 006, OOB, 016 end qi7 did not tGschaege during this peuod. CvrfsaD 030 hat not barn <br />cotutnteted yet; theceftm, them is ao discharge m enable chemical or msitdagical testing m date. <br />Cnrtfille 001, 005, end 007 are being tested far Hardams is addition m the aquimd paramemn. TCC is wnductiag <br />some internal sampling m further explain sane iuttee that have previoudy barn io quesdou widt the NPDF.S <br />requiretnenn. A copy of these aeeulu is included is the eubmitnl. <br />Quarterly Whok Et$tent Toxicity (W$T) Wn wore conducted oa qutfolle 001, 005, sad 007.Outfall OOi passed for <br />pasted for G Duhie, with "Conceatradone with Statietieelly ugai5eeat D;f&smce ie Lethality" mporo:d at>f00%, <br />but failed for P, Pmmela with the ceawyoredon repotted at 100%. Cmtfa110oS alto passed for C. Dubin Wlth the <br />coneme[atiaa mported at >100%, but fatted far P. Prttmelae wilt the conwthetiaa reported et 100%.CMtfsdl 007 <br />failed for C. Dnbia wilt to mnceatratioa repeabt:d at 75% but petted for P. Pramdeswidt the conceatratioa mported ae <br />>100°/s. Copks of the CDPS WET Teat Report Romts fnc epee tetra ate iarlyded with dris submittal. No accelerated <br />testing will be perfomted for those outfalls u per the kttee dated 4/13/98 addtwaed dD Joc Sltoemalcer, TCC from <br />Ceela jepkey, Water Que6ty Coateol Division <br />Oa behalf of Twntuymiln Coal, F,NSR Ecologoical end Toucological Sesoim ruendy submitted a propotal m WQGD <br />for caaducdog en aquatic impa®eat study o£ Foidel Cmek, tiPm WQDC approval of thip propotel, TCC wdl <br />iaitiam tbis emdy, <br />Pkase contact me qt (970) 870.2730 for sty fttrlltec yttesriom or additional iafipmadon. <br />'i~sentymile Co Company{r`e <br />~~ l <br />be'Shoemaker <br />J <br />Envimnmeaml Specialist <br />ova <br />iuiuiiniii iii <br />c~~~' <br />'rwKterm k cwl~ ae~. <br />18616 Rotstt Cetsttar Rwd i 17 <br />Oak Cttsak, CO BWa7 <br />(870) 878,7800 <br />eodosurce <br />