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Section 2 <br />Investigation Approach and Activities <br />• Exhibit 2-1 (Continued) <br />E <br />• <br />cm <br />Notes: <br />'Sample container requirements shown for /eachate samples are applicable to field collected water <br />samples, based on the approximate volumes needed to complete the listed analyses for a particular <br />preservative type. Actual container sizes used during the MWMP tests will be determined by the <br />laboratory. <br />2Units in Ng/L, unless otherwise noted. <br />3 Acid-Base Accounting consists of reporting the following parameters: <br />-Total Sulfur -Residual Sulfur <br />-Water - Extractable Sulfur -Acid Potential <br />-HCI - Extractable Sulfur -Neutralization Potential <br />-HNO3 - Extractable Sulfur -Net Neutralization Potential <br />4NA = not applicable. <br />5Analysis should be performed as soon as possible, or immediately after sample collection. <br />'Reporting limit will be specific to the electrode instrument utilized by the laboratory. <br />Radiochemistry samples have a sample specific Minimal Detectable Concentration (MDC) calculated as <br />the reporting limit. The MDC is affected by counting time, sample volume, total dissolved solids (TDS) <br />concentration, and instrument background. <br />Analyte Method Reporting Limit (Ng/L) <br />Nitrate EPA 353.2 50 <br /> <br />Nitrite EPA 353.3 100 <br />Ammonia EPA 350.3 30 <br />Hardness SM 2340C NA <br />Aluminum - Total Recoverable EPA 200.8/200.7 100 <br />Iron - Total Recoverable EPA 200.8/200.7 30 <br />Mercury - Total Recoverable EPA 245.1 1 <br />MWMP Leachate Water Samples - Dissolved Metals/Metalloids <br />Aluminum EPA 200.8/200.7 100 <br />Antimony EPA 200.8/200.7 1 <br />Arsenic EPA 200.8/200.7 1 <br />Barium EPA 200.8/200.7 1 <br />Beryllium EPA 200.8/200.7 1 <br />Boron EPA 200.8/200.7 100 <br />Cadmium EPA 200.8/200.7 1 <br />Chromium EPA 200.8/200.7 1 <br />Cobalt EPA 200.8/200.7 1 <br />Copper EPA 200.8/200.7 1 <br />Iron EPA 200.8/200.7 30 <br />Lead EPA 200.8/200.7 1 <br />Lithium EPA 200.8/200.7 100 <br />Manganese EPA 200.8/200.7 1 <br />Mercury EPA 245.1 1 <br />Molybdenum EPA 200.8/200.7 1 <br />Nickel EPA 200.8/200.7 1 <br />Selenium EPA 200.8/200.7 1 <br />Silver EPA 200.8/200.7 1 <br />Thallium EPA 200.8/200.7 1 <br />Uranium EPA 200.8/200.7 1 <br />Vanadium EPA 200.8/200.7 1 <br />Zinc EPA 200.8/200.7 1 <br />2-3 <br />TA649WDenison Mines\Te