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MONITORING AND REPORTING PROGRAM -7- <br /> DEFENSE DISTRIBUTION REGION WEST TRACY <br /> SAN JOAQUIN COUNTY <br /> Type of Sampling <br /> Constituents Units Sample Frequency <br /> Specific Conductivity �anhos/cm Grab Quarterly <br /> pH pH Units Grab Quarterly <br /> Temperature °F/°C Grab Quarterly <br /> Total Volume of gallons Meter Weekly <br /> Water Extracted <br /> Extraction Rate at Time gpm Meter Weekly <br /> of Sampling <br /> Average Extraction Rate gpm Meter Weekly <br /> ( last 7 days) <br /> Pressure at Time psig Meter Weekly <br /> of Sampling <br /> Water Level ft. MSL Meter Weekly <br /> PERFORMANCE MONITORING WELLS: <br /> The performance monitoring wells for the ground water extraction system shall <br /> include the Ensotech, Inc. wells (MW1 , MW2, MW3, MW4, and MW5) and the RI\FS <br /> wells (LM15, LM62, LM28, LM29, LM53, LM49, LM50, and LM30) . These well shall be <br /> monitored as follows: <br /> Type of Sampling <br /> Constituents Units Sample Frequency <br /> Volatile Organics ug/l Grab Quarterly <br /> (Methods 8010 and 8020) <br /> Specific Conductivity jimhos/cm Grab Quarterly <br /> pH pH Units Grab Quarterly <br /> Temperature °F/°C Grab Quarterly <br /> Volatile Organics µg/l Grab Quarterly <br /> (Method 8240) <br />