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Water Quality Monitoring Plan Climax Molybdenum Company <br /> Version. R4 Permit No. M-1977-493 <br /> 5.1.3 Tenmile Creek Watershed <br /> The POC wells for Tenmile Creek Watershed are the shallow/deep well pair GW#2 and TM-MW-002D, <br /> located near the Climax property boundary downgradient of the CDPS permit Outfall 001A. The baseline <br /> data set for this well is presented in Table B-3.3 (Appendix B) and Table 5-6 lists the NPLs established for <br /> POC well GW#2 using CBSG table values for all parameters. <br /> Table 5-6-GW#2 Numeric Protection Limits <br /> Analytical Parameter Frequency NPL(mg/L) NPL Basis <br /> Cadmium,dissolved Quarterly 0.005 Table 1,CBSG <br /> Copper,dissolved Quarterly 0.2 Table 31 CBSG <br /> Iron,dissolved Quarterly 0.3 Table 2,CBSG <br /> Manganese,dissolved Quarterly 0.05 Table 2,CBSG <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 /> A bedrock POC well TM-MW-002D was constructed in August 2012 adjacent to the existing shallow GW#2. <br /> The baseline data set in Table B-3.4 (Appendix B-3) was evaluated to establish the NPLs for this well and <br /> are listed in Table 5-7. <br /> Table 5-7-TM-MW-002D Numeric Protection Limits <br /> Analytical Parameter Frequency NPL(mg/L) NPL 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 0.05 Table 2,CBSG <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 /> EPP—Appendix C May 2018 26 <br />