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PART 1 Page xi Permit No. CO-0043648 Table I.B.-2, Monitoring for: Point 002A -Pregnant Solution Storage Area Leak Collection and Recovery System (PSSA-LCRS); and Point 003A -Ore Storage Area Leak Detection System (OSA-LDS) Efllueot Parameter Measuretnenf Frequency.. Sttmple:Type . Leakage Pumping Rate, gpd (gallons per day) Continuous Recorder Leakage Pumpiug Rate, gpad (gallons per wetted acre per day) Depth of Solution Over Top Liner, k Calculated Theoretical Leakage Rate, gpad Leakage Action Code (see codes 1~ below) Ammonia, Total, mg/1 (Ibs/day) Cyanide, Weak Acid Dissociable, mg/I Aluminum, Potentially Dissolved, ug/I Cadmium, Potentially Dissolved, ugll Copper, Potentially Dissolved, ug/I Manganese, Total Recoverable, ug/I Mercury, Total, ug/I Silver, Potentially Dissolved, ug/I Zinc, Potentially Dissolved, ug/I Continuous Recorder Daily Instantaneous Daily Instantaneous Daily Lastantaneous Not Required Until G~anide Removal Provers /s Begun Once/2 Weeks Grab' Once/2 Weeks Composite Once/2 Weeks Composite Once/2 Weeks Composite Once/2 Weeks Composite Once/2 Weeks Composite Once/2 Weeks Composite Once/2 Weeks Composite Leakage Action Codes Using the criteria and corresponding responses specified in the DMG permit application, the pertnittee shall determine which of the following actions is appropriate, shall perform the indicated action, and shall use the action codes that are listed to calculate values that must then be reported on the monthly Discharge Monitoring Reports (DMRs). I Normal operation continuing -collected leacha[e must be pumped back to the solution circulation system. 2 The leakage monitoring frequency must be increased [o at least twice [he frequency listed in Table 1. B.-2, and any observable damage to the liner must be repaired. 3 Water management must be improved in order to reduce the leakage rate. Special notification must be provided to the Water Quality Control Division and [he Division of Minerals and Geology indicating what the leakage rate Is and what measures have been taken to reduce it. The permittee shall provide verbal notification the WQCD .vithin 24 hrs, and written notification within 5 days. 4 Additional measures must be implemented in order to reduce leakage, which may include the inspection and repair of [he liner or the retluclion of head over [he liner. Special notification must be provided to the Water Quality Control Division and the Division of Minerals and Geology indicating what the leakage rate is and what measures have been taken to reduce it. The permittee shall provide verbal notification to the WQCD within 24 hrs, and written notification within 5 days. In addition to the notification provisions listed above, when cyanide is detected for points 002A or 003A, the permittee shall provide verbal notification to the WQCD within 24 hrs, and written notification within 5 days. Self-monitoring sampling by the permittee for compliance with the monitoring requirements specified above shall be performed at the locations listed in the tables. INUHY arVN]