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COLORADO DEP,IR1'S11: `%T O(' PI,rf3LIC HEALTH .~?.D E:vvfRONnrE,vT. 6V'uter Qualin Control Dirisiar <br />RilrlOn(ri E' -Amendment ,\4r I Page J, Pernut Nn. CO-0000221 <br />3 Chemiculc Lrsta The penmttee drd nor specify any chemicals for use m ,raters that may be discharged /tom <br />• these uerr u« rfir(ls. On this basis. no chemicals are nooroved under dos amendment Priar ro use o(am <br />applicable thenucnl. the perrnaree must submit a request far approval which includes the most current ;Llaterial <br />Sufery Dara Sheet pti9SDS) jot drat chemrarl. Until approved. use of any rhenural iq wavers that may 6e <br />discharged could result in discharge of polluranrs not authorized under the pernut. also see Part /f..-1.2. of die <br />permit <br />6. Wastewater Treatment Descriprian <br />• <br />As nunrng expands. ponds }with new outfalls 012. 01) nnrl 0I4 are being ndded ro tire treatment systems at the <br />exu'[ing Yoast ,lline and ponds with rrerv aurfnlls 01 ). 016 and 017 are being added to the treatment system at Lire <br />existing Seneca 11W ,Cline. .all outjalls e.tcept 015 may rrerv and discharge wastewater from surface nmuff, surface <br />none pit de}ratenng (considered as mine water) mrd/or spoils spring water. Pond/outfall OJ5 will discharge only <br />surface nmoff. E/J7uenr flaw frarn the primary spdhvays at all xis outjalls wr/( be menstved with parshall Jiumes tirar <br />are sized according ro the maximum flow expected through those spilltivays. /nJornrurion nborrt dre new and existing <br />outfalls is summarized in the following table. <br />Table V-l--Dischnree Point Information <br />Outfall lYas[ewater Source Avg Flow, ,YIGD Dailyy blax Flow, <br />bIGD /0-yr/24-hr Event <br />Vol. ~Y1G Pond Stara e <br />Volume, A~ <br />002 SR, SS 0.3316 7.4233 3.8900 10.2056 <br />003 SR. TW 0.0903 0.3557 0.1343 0.9319 <br />004 SR, SS 0.1948 4.6844 2.1776 2.7208 <br />005 SR. SS 0.0165 0.7978 1.5119 0.6126 <br />006 SR, SS. ,LIMY 0.0543 1.1563 4.1350 1.5250 <br />008 SR, SS. MW 0.1782 2.1600 1.8704 2.8153 <br />009 SR 0.0422 0.1584 1.1274 1.3425 <br />Ol0 SR, SS. NILV 0.181* 3.432` 5.9631 3.2878 <br />01I SR, SS, ,LIW 0.032* 0.963* 0.8277 0.5670 <br />0! Z " SR, SS, ,LI W' * * * * 4. 7639 1.1034 <br />013 " SR, SS, ,L/ W * * * ` 0.6452 0.2867 <br />0!4" SR, SS. MW ** ** 2.9/97 0.6452 <br />0/5" SR ** ** 0.5865 0.5377 <br />016 " SR, SS, MW * * ' ` 2.0724 0.7690 <br />017" SR, SS, hIW ** ** 0.7690 0.6224 <br />SR means Surface Runoff. SS means Spoils Spnng. MW means rtifine LVnter. TLV means Trtrck Wash <br />" New outfall ndded via this amendment number 1 <br />` Design volumes <br />Because these are neu outjalls. nn dadiarge darn have been ncnunulered <br />Winter access to new outfalls 014, 015, 016 mrd 017 mm be hazardous ur times to the operator, They hove <br />requested the some redurert reinter maritonng frequencies that now apply ro outfalls 004. 005. 008. 009 and 011 <br />• TheJaciliry conmc'! person was injured recently while attempting ro perform die required monitoring. He sustnmed <br />several crocked nbs and muscle dmnage to his arm. Tire Divtswn does nor believe that permittee personae( shmrld <br />be required m place dienrselves in n posuion of harnr to ohtain disdmrge rnonuoring samples. Sze disuasion in <br />section V/.B following Table VI-8. <br />