2013-05-31_HYDROLOGY - M1977342

• Permit No: M1977342
• IBM Index Class Name: HYDROLOGY
• Doc Date: 5/31/2013
• Doc Name: Submittal of Annual Water Monitoring Report
• From: Climax Molybdenum
• To: DRMS
• Permit Index Doc Type: Hydrology Report
• Email Name: PSH
• Media Type: D
• Archive: No

CMC — Henderson Operations
DRMS Annual Water Monitoring Report
May 2013
Trend Evaluation 15, CC -30: pH
Trend Evaluation 16, CC -30: Sulfate
Trend Evaluation 17, MLGW -7: Fe, Mn, Se, and Zn
Trend Evaluation 18, MLGW -7: Specific Conductivity
Trend Evaluation 19, MLGW -7: pH
Trend Evaluation 20, MLGW -7: Sulfate
Trend Evaluation 21, WFR -20: Fe, Mn, Se, and Zn
Trend Evaluation 22, WFR -20: Specific Conductivity
Trend Evaluation 23, WFR -20: pH
Trend Evaluation 24, WFR -20: Sulfate
Trend Evaluation 25, WFR -40: Fe, Mn, Se, and Zn
Trend Evaluation 26, WFR -40: Specific Conductivity
Trend Evaluation 27, WFR -40: pH
Trend Evaluation 28, WFR -40: Sulfate
Appendices
Appendix A, Climax Molybdenum Company, Henderson Operations Groundwater
Monitoring Point of Compliance (POC) Technical Memorandum, May 2013