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0 1 ' Table 2. cont. Constituent List, Sample Processing and Anal tical Methods. Constituent Saml2ling Anal ical ' Meter/EPA Recommended zL Name Units Processing Container Preservative Standard Detection Limit a Method ' 250 mL E Lead mg/L Filtered polyethylene HNO3 200.8 0.001 a ' 250 mL E Nickel mg/L Filtered polyethylene HNO3 200.8 0.002 a 250 mL ' E Zinc mg/L Filtered polyethylene HNO3 200.8 0.01 a D Oxygen- Per Unfiltered 250 mL None Mass 0.1 18/Deuterium mil polyethylene Spectrometry ' D Boron-11 Per Filtered 250 mL None Mass 0.1 milpolyethylene Spectrometry D Caffeine µg/L Unfiltered 2- 1000 mL HCI 525.2 0.05 ' amber glass Gas D EDTA µg/L Filtered 1000 mL None Chromatography 0.1 amber glass Mass ' Spectrometry Purpose for including constituent: ' A-Specified in WDR's Groundwater Limitations. B -Field parameters. C-Specified in WDR's Groundwater Monitoring and Reporting Program requirements. D-Wastewater and/or potential recycled water indicator. ' E-Detected in previous monitoring data at levels that exceed MCL's. Footnotes in Table: I Some constituent groups are typically analyzed from a single sample container. These groups are identified using a common letter in the container column: (a), (b), (c) or(d). Sample volumes should always be verified with the laboratory prior to sample collection. Clear containers may be used for all constituents with the exception of TTHMs, caffeine, and EDTA which require amber vials and bottles, respectively. 2 pH, Temperature, Electrical Conductivity, Dissolved Oxygen, and Oxidation-Reduction Potential should be measured immediately in the field. ' 3 Standard Cations include calcium, magnesium, sodium and potassium. 4 Standard Anions include Chloride and Sulfate. 5 EPA Method 8260B is for solid waste; the equivalent method for water is EPA Method 524.2. 1 ' - 16 -