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- (7JLO24D0 DEP,aKT,IIE.:~T OF Pl;t3L1C HEALTH.I~VD EA'L'(RON,LIE:VT. LVarer Quulur Crmtrnl Di+.isron <br />Rationale - ~imendment iVo 1. /'age 3, Permit :Vo CO-0000221 <br />3. CJremicnl.r L'sed. 77re pennittee did nor spenfv any chemicals Jor tae m waters that nary be discharged from <br />these new ourfidls Orr rhrs basrs, no chemicals are approved under rh+s amendment Prior ro raz of anv <br />nppliccrble drenncnl, the pennittee neat subnut n reyuesr for approval which inch+des the nrost current ~Llnterrul <br />Sujety Dam Sheer (hISDS) for that ciremica( Lthtd approved. use of any cltenural yr waters drat may be <br />discharged could result in discharge of pollutants not nurhonzed under the permit .1lso see Part !/.A.Z. o(tlte <br />permit. <br />• <br />B. Wastewater Treatment Description <br />As mining espnnds, ponds with new ourfnlls 01 ?. 013 nnrl 014 are beurg added ro the treatment systems nr die <br />existing Yousr dlirre and pmrds with new aurfnlls 0l ~. 016 and 017 are being added to dre treatment system at the <br />exisrirrg Seneca IILV ,Llbie. ,Ill outjalls except 015 may treat and discharge a~nsrewarer fianr surface nmoff, surface <br />urine pit dewarering (considered as mine water) cord/or spoils spnng }voter. Pond/ourfall 0!5 will discharge only <br />surface runoff. EJflueru flow from the primary spdhvays ar all six outjalfs will be measured with parshall flurries that <br />are sized according to the maximum flow expected through those spillways. Injorn+ation about the new and existing <br />autfa!!s is summarized in the follo~virrg table. <br />Table V-1--Discharee Point !n(ormntion <br />OutJall Wastewater Source Avg Flow, iY1GD Dmlyy rLlar Flow, <br />h1GD 1 t)-yr/2~t-hr Event <br />Vol, MG Portd Stora e <br />Volume, rL~ <br />002 SR, SS 0.3316 7.4233 3.8900 10.2056 <br />003 SR, TW 0.0903 0.3557 0 1343 0.93!9 <br />004 SR, SS 0.!948 4.6844 2.1776 2.7208 <br />005 SR, SS 0.0!65 0.7978 1.5119 0.6/26 <br />006 SR. SS, hllV 0.0543 1.1563 4.1350 1.5250 <br />008 SR, SS. N1LV 0.1782 2.1600 1.8704 2.8/53 <br />009 SR 0.0422 D. 1584 1.!274 1.3425 <br />010 SR, SS, rLIW 0.181 * 3.432* 5.9631 3.2378 <br />011 SR. SS, rLIW 0.032' 0.963* 0 8277 0.5670 <br />012" SR, SS, rLIW ** *' 4.7639 1.3034 <br />013 " SR, SS, rL/ W * * * * 0.6452 0.2867 <br />014 ~ SR, SS, rLIW ** ** 2.9197 0.6452 <br />015 " SR ** ** 0.5865 0.5377 <br />016 ~ SR. SS, rL/LV ** ** 2.0724 0.7690 <br />017 " SR, SS, rL1 W * * * * 0.7690 0.6224 <br />SR means Surface Runoff. SS means Spotls Spring, rLIW means rL/ine Water, TLV memo Tneek Wash <br />" rVew ourfall added vin thu amendment nmrrber / <br />Design volumes <br />... Becruae drese are new outfalls, no discharge dam have been accunudated <br />LVinter access to new ourJ"n(Is 014. 015, 0!6 and Of 7 nurv be hamrdous at trines to the operator. They have <br />requested dre scone reduced winter rnonitonng frequencies drat now apply to ourfalls 004, 005, 008. 009 and 01 (. <br />• The faci!ir; comer person was injured recently while nrrempnng ro perjunn the required monitoring. He sustmrred <br />Severn; crecker( rrhs and muscle dm;mgc to l~~s arm. P!e C.:•u+on does r. o:eelieve that penntttee personae! shoidd <br />be required ro place dttnaelves in a pasuion aJharm ro obram disdrarge monitoring samples. See discussion m <br />searon VI B. fo((owmg Tube Vl-8. <br />