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MONITORING AND REPORTING PROGRAM -9- <br /> DEFENSE DEPOT TRACY <br /> SAN JOAQUIN COUNTY <br /> MONITORING WELLS: <br /> Monitoring wells LM-11 , LM-12 and LM-63 shall be monitored as follows: <br /> Type of Sampling <br /> Constituents Units Sample Frequency <br /> Specific Conductivity ranhos/cm Grab Quarterly <br /> pH pH Units Grab Quarterly <br /> Temperature ° F/°C Grab Quarterly <br /> Metals mg/l Grab Quarterly <br /> (Method 6010) <br /> Arsenic mg/l Grab Quarterly <br /> (Method 7060) <br /> Mercury mg/l Grab Quarterly <br /> (Method 7471) <br /> Selenium mg/l Grab Quarterly <br /> (Method 7740) <br /> Water Level ft. MSL Meter Quarterly <br /> Plan A At initiation and end of the injection of potable water to the <br /> injection wells. <br /> Plan B At initiation of startup and at 2-hour intervals dur, g startup and for <br /> the first 12 hours of the Prove-Out. Every six lours thereafter, <br /> throughout the duration of the Prove-Out. <br /> Plan C At initiation of startup and at 6, 12, 24, 48 and 96 hours of the <br /> Prove-Out <br /> Plan D At initiation of startup, after 4 hours of operation, and at the end of <br /> the Prove-Out. <br /> Plan E At initiation of startup and at the end of the Prove-Out. <br /> QUALITY CONTROL SAMPLES <br /> For quality control purposes the Discharger shall collect and have analyzed one <br /> sampling blank and one duplicate for every ten samples collected and analyzed. <br /> Each of these quality control samples shall be analyzed for the same parameters <br /> as the other samples collected. <br />