PERMFILE115773

• Permit No: C1981018A
• IBM Index Class Name: Permit File
• Doc Date: 5/13/2002
• Doc Name: Water Discharge Permit
• Section_Exhibit Name: Illustration 46
• Media Type: D
• Archive: Yes

PART I
Page v
Permit No. CO-0038024
TERMS AND CONDITIONS
1. Effluent Limitations (continued)
(d) Outfa11004
affluent Parameter Discharee Limitations
30.Dav Av¢ 7-Dav Av¢ '1 M
Flow, MGD Report N/A Report
BODS, mg/1 30 45 N/A
Total Suspended Solids, mg/l 35 N/A 70
Fecal Coliform, Na./100 ml 2000 4000 N/A
Total Residual Chlorine, mg/l N/A N/A 0.5
Total Iron, mg/1 3.5 N/A 7.0
p$ s.u. (minimum-maximum) N/A N/A 6.SA.0
Oil and Grease, mg/1 N/A N/A 10
WET, Acute N/A N/A LCA >100R,
2. Burden of Proof Requirements
The permittee has the burden of proof when eeelong relief from total suspended solids (TSS), total iron and/or settleable
solids (SS) limimtion. Outfalls 001, 002, 003, 005, 006, 007, 008, 009, 025 and 028 are eligible for relief. The remaining
permitted outfalls are not eligible.
Relief may be.grsnted for each discharge occurrence only whm necessary and shall sot be granted when the permittee has
control over the discharge. The permittee should endeavor to meet the primary limitations whenever possible. The
• permittee will need to show that exoeedeace of the applicable limitations was catraed by precipiation and no other aotrrce and
that the discharge was beyond their control.
a) For rainfall. to waive TSS and total iron limitation, it is necessary to prove that discharge occumd within 48 hoots
after +~+'ae~*ahle precipitation has stopped. In addition, to waive settleable solids limitation, it is neaswy to prove that
discharge occurred within 48 hours after procipitatioa greater than the 10-year, 24-hour event has stopped.
b) For saowmelt, to waive TSS and total iron limitation, it is necessary to prove that discharge occurmd within 48 hours
after pond inflow has stopped. In addidotr,. to waive seWeable solids limitation, it is necessary to prove that discharge
occurrod within 48 hours after pond inflow volume grater than the 10-year, 24-hour event has stopped.
Should a precipitation event or snowmelt occur, the permittee shall submit adequate proof in order for as exemption to be
claimed. Said proof shall be submitted as an nffnrt•mrnt t0 the Discharge Monitoring Repoli (DMR) for the appropriate
period. The Division shall determine the adequacy of proof. As paR of this detarminatioa, the Division shall evainte
whether the permittee could Nava controlled the discharge in such a manner that primary ]imitation could have bees met.
All manual dewateriag of the ponds shall meet TSS sad total iron limitation.
3. Post-Minin¢ Areas
Commencing at the time active mining has ceased and surface areas have been teturned to the required contour all applicable
discharges may be eligible for limitation other than tfu~se spxified in PaAs I.A.2. and I.A.3. These port-mining limitations
shall remain in effect until bond rolease. The permittae shall notify the Division upon cessation of active mining so that
consideration of appropriate permit modification can be made.
Sce Pert I.C. for DeCutitions.