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Table 3 <br /> Biogeochemical Parameters <br /> Union Pacific Railroad Company <br /> Former Maintenance Facility <br /> Tracy, California <br /> Phase II Field Investigation Work Plan <br /> Parameter Method <br /> Permanent Dissolved Gases Microseeps <br /> Carbon Dioxide <br /> Oxygen <br /> Nitrogen <br /> Methane <br /> Carbon Monoxide <br /> Ethene <br /> Ethane <br /> Electron Acceptors <br /> Iron (Total) EPA 6010 <br /> Iron (Dissolved) EPA 6010 <br /> Manganese (Total) EPA 6010 <br /> Manganese(Dissolved) EPA 6010 <br /> Sulfate EPA 375.4 <br /> Sulfide EPA 376.1 <br /> Nitrate EPA 353.2 <br /> Nitrite EPA 353.2 <br /> Ammonia Nitrogen EPA 350.1 <br /> General Chemistry <br /> Alkalinity EPA 310.1 <br /> Biochemical Oxygen Demand EPA 405.1 <br /> Chemical Oxygen Demand SM5220C <br /> Total Organic Carbon EPA 9060 <br /> Dissolved Organic Carbon EPA 9060 <br /> Chloride EPA 325.2 <br /> Field Measurements <br /> pH Meter <br /> Specific Conductance Meter <br /> Temperature Meter <br /> Dissolved Oxygen Meter <br /> Oxygen Reduction Potential Meter <br /> Ferrous Iron (Iron II) HACH Colorimetric <br /> Sulfide HACH Colorimetric <br /> Turbidity Meter <br /> Water Level Probe <br /> RC709\Tables 1-3(12-30-08).xls ARCADIS Page 1 of 1 <br />