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Building 850 Septic System Closure Plan 11 August 2009 Lawrence Livermore National Laboratory Site 300 San Joaquin County Table 2:Building 850 se tics stem groundwater anal tical methods and re ortin limits Analyte EPA (E) or Reporting Units Standard Method (SM)l limit Biological Total coliform SM 9211 2 MPN/100mL Fecal coliform SM 9221 2 MPN/100mL Metals Aluminum E200.7 or E200.8 0.05 m /L Arsenic E200.8 0.002 m /L Barium E200.7 or E200.8 0.025 m /L Boron E200.7 0.05 m /L Cadmium E200.8 or SM3113B 0.05 m /L Chromium E200.8 or SM3113B 0.001 m /L Chromium VI E218.6, E7199 or E200.8 0.001 m /L Copper E220.2 or E200.8 0.001 mac/L Iron E200.7 0.1 mg//L Lead E239.2 or E200.8 0.005 m /L Magnesium E200.7 0.5 mg/ L Manganese E200.7 or E200.8 0.03 m /L Mercury SM3112B or EPA 245.2 0.0002 Molybdenum E200.7 or E200.8 0.025 m /L Nickel E249.2 or E200.8 0.002 m /L Potassium E200.7 1 m /L Selenium E270.2 or E270.3 or E200.8 0.002 m /L Silver E200.7 or E200.8 0.001 M /L Vanadium E200.7 or E200.8 0.020 m /L Zinc E200.7 or E200.8 0.02 m /L Salts/anions Calcium E200.7 0.5 m /L Chloride E300.0 0.5 m /L Fluoride E300 or SM450OF 0.05 m /L Nitrate as NO3 E300.0, E354.1, or E353.2 0.5 m /L Total phosphorus as PO4 SM 4500-P or E365.4 0.05 m /L Sodium E200.7 11 m /L Sulfate E300.0 1 m /L Physical/general Ground water elevation Field measurement NA Feet or Meters SM4500-H or calibrated H H units meter ± 0.1 Unitless S ecific conductance E120.1 or calibrated meter NA pmhos/cm Total alkalinity as CaCO3 E310.1 or SM2320B 1 m /L Total dissolved solids (TDS) E160.1 or SM2320C 1 -m /L Total hardness as CaCO3 SM2320B 1 m /L Or equivalent method as approved by the Central Valley Water Board. NA= not applicable