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• <br /> • <br /> • TABLE <br /> • PROPOSED LABORATORY ANALYSES FOR GROUNDWATER SAMPLES <br /> • Analytical Container Reporting Container <br /> • Analyte method size Limit material Preservative Hold time <br /> • pH SM 4500-H 1 liter 0.01 units Plastic <_4°C immediate <br /> • Specific Conductivity SM 2510 500 mL I µmho/cm Plastic <_4°C 24 hours <br /> • Nitrate as Nitrogen EPA 300.0 2 oz. 0.10 mg/L Plastic snap-cap H2SO4, <_4°C 48 hours <br /> Total Kjeldahl Nitrogen (TKN) EPA 351.4 500 mL 0.20 mg/L Plastic or Glass H2SO4, _<4°C 28 days <br /> • Total Dissolved Solids(TDS) EPA 160.4 1 liter 1.0 mg/L Plastic <_4°C ASAP <br /> • Standard Minerals' EPA 200.7 1 liter Plastic 54°C 28 days <br /> • Total Trihalomethanesh(TTHMs) EPA 501.1 120 mL 0.50— 10 pg/L 40 mL VOA` <_4°C 14 days <br /> • ° Standard Minerals to include boron,chloride,calcium,magnesium,potassium,sodium,sulfate,total alkalinity,and hardness. <br /> • n TTHMs consist of the sum of bromodichloromethane,bromoform,chloroform,and dibromochloromethane. <br /> • ` Volatile Organic Analysis bottle. <br /> • <br /> • <br /> • <br /> • <br /> • <br /> • <br /> • <br /> • <br /> • <br /> • <br /> • <br /> • <br /> • <br /> • <br /> • <br /> • <br /> • <br /> • <br /> • <br /> • <br /> • <br /> • <br /> • <br /> • <br /> • Riverbank W WTP Workplan Nolte Associates,Inc. <br /> • March 2005 A-6 N:\SA1542\mon—well\new\gwmwiwp\lab.xis <br /> • <br />