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Geochemistry and Water Quality Review Adequacy Response <br />Wildcat May Day; DRMS File No. M-1981-185 Conversion Application CN-1 <br />were considered in the presented hydrogeologic reports. (Dr. Gonzales, personal <br />communication-5.31.2011) <br />Adequacy Issue #22 <br />Water Quality Data. The data reported in various tables are suspicious and appear to contain <br />errors. For example, the hardness for SW-1 on 5/2010 is reported as 0.052 mg/L, which is <br />implausible given the concentration of calcium and magnesium. Also, between 5/2010 and <br />2/2011, the silver concentration of SW-1 is reported to increase 4 to 5 orders of magnitude from <br /><0.00005 mg/L to 1.3 mg/L, while the iron and manganese concentrations decrease by more than <br />3 orders of magnitude. Anomalous variations or values are also seen elsewhere, e.g., 7.58 mg/L <br />Nitrite in DG-2 on 11/2010 (this appears to be an erroneously transcribed pH value). The <br />Applicant needs to provide corrected tables or, alternatively if the data are correct, suggest an <br />explanation for these incredible variations in water quality. <br />Response #22 <br />Water quality report summaries have been corrected. Data from the laboratory were not <br />accurately posted to the summary data sheets and have been resubmitted. <br />Adequacy Issue #23 <br />Detection limits for some regulated constituents are above the regulatory limits. The Applicant is <br />advised that detection limits must be at or below the regulatory limits for the data to be <br />acceptable to DBMS. <br />Response #23 <br />Comments noted. <br />6/6/11 <br />10