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Water Quality Monitoring Plan Climax Molybdenum Company <br /> Version R4 Permit No. M-1977-493 <br /> NPL Basis <br /> Analytical Parameter Frequency NPL(mg/L) (see notes) <br /> Zinc,dissolved Quarterly 2.0 Table 3,CBSG <br /> pH Quarterly 6.5—8.5 Table 2,CBSG <br /> Sulfate(SO4) Quarterly 250 Table 2,CBSG <br /> Total Dissolved Solids(TDS) Quarterly 400 Table 4,CBSG <br /> Fluoride,dissolved Quarterly 2.0 Table 3,CBSG <br /> NOTES: <br /> Table 1, CBSG: Domestic Use Human Health Standards <br /> Table 2, CBSG. Domestic Use Secondary Drinking Water Standards <br /> Table 3, CBSG Agricultural Use Standards <br /> Table 4, CBSG: TDS Water Quality Standards <br /> TBD:To be determined;an NPL for manganese will be established following the WQCC process referenced <br /> above and in consultation with DRMS and WQCD. <br /> 5.1.2 Eagle River Watershed <br /> The POC wells for this watershed include two wells near the property boundary and a well above Eagle <br /> Park Reservoir. The property boundary POC wells are the shallow/deep well pair EVMW-3S and EVMW- <br /> 3D, adjacent to the East Fork Pumping Station upgradient of the East Fork of the Eagle River. The POC <br /> well above the Eagle Park Reservoir is bedrock well EV-MW-004.The baseline data set for these wells are <br /> presented in Tables B-2.5, B-2.6, and B-2.7(Appendix B). Tables 5-3, 5-4 and 5-5 list the NPLs established <br /> for POC wells EVMS-3S, EVMW-3D, and EV-MW-004, respectively, utilizing the most stringent criteria set <br /> forth in Tables 1 through 4 of the CBSG, with the exception of manganese. <br /> Table 5-3-EVMW-3S Numeric Protection Limits <br /> Analytical Parameter Frequency NPL(mg/L) CBSG Basis <br /> Cadmium,dissolved Quarterly 0.005 Table 1,CBSG <br /> Copper,dissolved Quarterly 0.2 Table 3,CBSG <br /> Iron,dissolved Quarterly 0.3 Table 2,CBSG <br /> Manganese,dissolved Quarterly TBD TBD <br /> Molybdenum,dissolved Quarterly 0.210 Table 1,CBSG <br /> Zinc,dissolved Quarterly 2.0 Table 3,CBSG <br /> pH Quarterly 6.5—8.5 Table 2,CBSG <br /> Sulfate(SO4) Quarterly 250 Table 2,CBSG <br /> Total Dissolved Solids(TDS) Quarterly 400 Table 4,CBSG <br /> NOTES: <br /> Table 1, CBSG: Domestic Use Human Health Standards <br /> Table 2, CBSG: Domestic Use Secondary Drinking Water Standards <br /> Table 3, CBSG: Agricultural Use Standards <br /> Table 4, CBSG: TDS Water Quality Standards <br /> TBD• To be determined;an NPL for manganese will be established following the WQCC process referenced <br /> above and in consultation with DRMS and WQCD. <br /> EPP—Appendix C May 2018 24 <br />