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MONITORING AND REPORTING PPAIWAM NO. R5-2009-0857 • 4 <br />JOHN TAYLOR FERTILIZERS CO.,, WWILBUR-ELLIS COMPANY <br />STOCKTON FACILITY, SAN JOAQUIN COUNTY <br />Table 2. <br />Groundwater Monitoring Schedule for Deep Groundwater <br />Monitoring Wells' <br />Maximum <br />EPA Analytical Practical <br />Constituents Method Quantitation <br />Limit 2 <br />Depth to Groundwater <br />--- <br />--- <br />Total Oxidizable Nitrogen <br />353.2 <br />1.0 mg/I <br />Ammonium as Nitrogen <br />350.1 <br />0.5 mg/I <br />Conductance <br />9050A <br />50 S/cm2 <br />Dissolved Oxygen <br />Field Meter <br />0.2 m /I <br />H <br />Field Meter <br />0.0.1 units <br />Temperature <br />Field Meter <br />0°C <br />Oxidation/Reduction Potential <br />A2580B <br />±300 mV <br />Volatile Organic Compounds <br />8260B <br />0.5 µg/13 <br />Fumigants <br />(including 1,2,3-trichloropropane) <br />504.1 <br />0.02 µg/I <br />Organophosphate Compounds <br />8141 <br />0.5 Ug/14 <br />Chlorinated Herbicides <br />8151 <br />0.5 µg/15 <br />Total Petroleum Hydrocarbons as <br />Diesel <br />8015M <br />50 µg/I <br />riazine Compounds. <br />619 <br />0.5 µg/I <br />Carbamate/Urea Compounds <br />8321 <br />.1 µg/I6 <br />Deep monitoring wells shall be initially sampled for all constituents for two consecutive semi- <br />annual events. If all constituents in an analytical suite are not detected in a deep monitoring <br />well during the first two consecutive events, that analytical suite may be removed from the <br />schedule for that well with Central Valley Water Board staff concurrence. <br />2 For nondetectable results. All concentrations between the Method Detection Limit and the <br />Practical Quantitation Limit shall be reported as trace. <br />3 Detection limits for bromomethane, dichlorodifluoromethane, Freon 113 and MTBE are 1 µg/I. <br />4 Detection limits for Coumaphos, Demeton, and Dichlorvos are 1 µg/I, for Fensulfothion and <br />Naled are 2.5 µg/I, for Mevinphos is 3.5 µg/l, and for Azinphosmethyl is 5 µg/I. <br />5 Detection limits for 2,4 -DB and Dalapon are 1 µg/l, for MCPA and MCPP are 100 µg/l. <br />6 Detection limits for Barban, Chlorpropham, Mexacarbate, Propachlor and Propham are 5 µg/l. <br />3. Monitoring wells with free product or a visible sheen shall be monitored at a <br />minimum for product thickness and depth to water. <br />REPORTING <br />