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MONITORING AND REPORTING PROGRAM ORDER NO. R5-2008-0149-029, Revision 1 -2- <br /> UNIFIRST STOCKTON <br /> SAN JOAQUIN COUNTY <br /> Table 1: Sampling Frequency' and Constituent Suites2 <br /> Volatile Dissolved Total <br /> Well Number Organic Alkalinity Manganese Organic Dissolved <br /> Compounds Carbon Solids <br /> MW-1 S S A A A <br /> MW-2, MW-3, MW-4 A <br /> MW-5A, MW-513, MW-5C S S S S S <br /> MW-7 S S S S S <br /> MW-6, MW-8, MW-9 A A A A A <br /> ' Semi-Annual sampling (S) is to occur in the 1s' and 3`d quarters (January-March, July-September); Annual <br /> sampling (A) is to occur in the first quarter (January-March). <br /> 2 Constituent suite analytical methods listed in Table 2. <br /> Table 2: Analytical Methods <br /> Maximum Practical <br /> Constituents Method3 Quantitation Limit 4 <br /> Volatile Organic Compounds EPA 8260B 0.5 ug/L <br /> Alkalinity SM2320B 2 mg/L <br /> Dissolved Manganese EPA 6010B 5 ug/L <br /> Carbon, dissolved organic SM 5310D 0.5 mg/L <br /> Total Dissolved Solids EPA 160.1 10 mg/L <br /> 3 Or an equivalent EPA Method that achieves the maximum Practical Quantitation Limit. <br /> 4 All concentrations between the Method Detection Limit and the Practical Quantitation Limit shall be <br /> reported as an estimated value. <br /> 5 Method 8260B quantitation limit of 0.5 ug/L applies to tetrachloroethene, trichloroethene, and daughter <br /> products. <br /> Table 3: Monitoring Well Objectives <br /> Monitoring Well Monitoring Objective Objective Definition <br /> MW-1, MW-6 Background Wells used to monitor background <br /> concentrations. <br /> MW-5A, MW-5B, MW-5C Transition Zone Wells sampled to evaluate migration of <br /> pollutants within the treatment zone. <br /> MW-7, MW-8, MW-9 Compliance Wells used to determine compliance with <br /> water groundwater limitations. <br /> MW-2, MW-3, MW-4 Ambient Conditions Wells used to monitor pollutants between <br /> background location and treatment area. <br />