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water quality locations will be conducted in June 2023, August 2023, and October 2023. <br /> Two additional sampling events at Nix-RMCC-Mon 9 will be conducted if deemed <br /> necessary by DRMS to collect up to five baseline samples at each well. At the end of the <br /> baseline phase, RMCC will submit a Baseline Data Summary report as a Technical <br /> Revision. <br /> 3.2.2.2 Operational Phase (Long-Term Operation) <br /> Water quality samples will be taken annually in June at each of the seven water quality <br /> wells for the duration of mining operations. The frequency of sampling for long-term <br /> monitoring can be modified in the future if water quality impacts are detected. Monthly <br /> water levels will continue to be collected at each monitoring well, however the Piezo wells <br /> may be removed after leak testing occurs. <br /> 3.2.3 Monitoring Parameters <br /> The Operator will conduct field and laboratory analysis on 37 different water quality <br /> parameters at each site, based on CDPHE Regulation 41, Tables 1-4. A proposed list of <br /> the 37 parameters is shown in Table 3. Table 4 includes the list of omitted analytes and <br /> justifications as previously discussed with and approved by DRMS staff. All analysis of <br /> "non-field" measurements will be performed by a State of Colorado-certified laboratory <br /> that follows accepted industry standards and quality assurance/quality control (QA/QC) <br /> procedures. <br /> Table 3: Baseline and Operational Water Quality Parameters <br /> Analyte Phase A t lldo al Standard Standard Reference <br /> Aluminum(Al) Dissolved-lab filtered M200.8 ICP 5 mg/L 5 CCR 1002-41;Table 3 <br /> Antimony(Sb) Dissolved-lab filtered M200.8 ICP 0.006 mg/L 5 CCR 1002-41;Table 1 <br /> Arsenic(As) Dissolved-lab filtered M200.8 ICP 0.01 mg/L 5 CCR 1002-41;Table 1 <br /> Barium(Ba) Dissolved-lab filtered M200.8 ICP 2.0 mg/L 5 CCR 1002-41;Table 1 <br /> Beryllium(Be) Dissolved-lab filtered M200.8 ICP 0.004 mg/L 5 CCR 1002-41;Table 1 <br /> Boron(B) Dissolved-lab filtered M200.8 ICP 0.75 mg/L 5 CCR 1002-41;Table 3 <br /> Cadmium(Cd) Dissolved-lab filtered M200.8 ICP 0.005 mg/L 5 CCR 1002-41;Table 1 <br /> Chloride(CI) Dissolved-lab filtered EPA 300.0 250 mg/L 5 CCR 1002-41;Table 2 <br /> Chlorophenol Total SM8270 0.0002 mg/L 5 CCR 1002-41;Table 2 <br /> Chromium(Cr) Dissolved-lab filtered M200.8 ICP 0.1 mg/L 5 CCR 1002-41;Table 1 <br /> Cobalt(Co) Dissolved-lab filtered M200.8 ICP 0.05 mg/L 5 CCR 1002-41;Table 3 <br /> Copper(Cu) Dissolved-lab filtered M200.8 ICP 0.2 mg/L 5 CCR 1002-41;Table 3 <br /> Conductivity Field SM4500 N/A N/A <br /> Cyanide[Free] Free 4500-CN-E 0.2 mg/L 5 CCR 1002-41;Table 1 <br /> Fluoride(F) Dissolved-lab filtered M200.8 ICP 2.0 mg/L 5 CCR 1002-41;Table 3 <br /> Iron(Fe) Dissolved-lab filtered M200.8 ICP 5 mg/L 5 CCR 1002-41;Table 3 <br /> Lead(Pb) Dissolved-lab filtered M200.8 ICP 0.05 mg/L 5 CCR 1002-41;Table 1 <br /> Lithium(Li) Dissolved-lab filtered M200.8 ICP 2.5 mg/L 5 CCR 1002-41;Table 3 <br /> Manganese(Mn) I Dissolved-lab filtered M200.8 ICP 0.2 mg/L 5 CCR 1002-41;Table 3 <br /> 12 <br />