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MONITORING AND REPORTING PROGKAM NO.R5-2003-XXXX -2-
<br /> AGRIUM INCORPORATED AND WESTERN FARM SERVICE,
<br /> VERNALIS FACILITY, SAN JOAQUIN COUNTY
<br /> GROUNDWATER MONITORING PROGRAM
<br /> Maximum
<br /> Detection
<br /> Constituents Method Limit' Frequency
<br /> Depth to Groundwater --- 0.01 ft Semi-Annually2
<br /> Total Oxidizable Nitrogen EPA 353.2 0.1 mg/l Semi-Annually2
<br /> Ammonium EPA 350.1 0.5 mg/l Semi-Annually,
<br /> Carbamate/Urea Pesticides EPA 8321 1 µg/13 Semi-Annually, D
<br /> Chlorinated Herbicides EPA 8151 1 µg/1 Semi-Annually2,4
<br /> (MW-2 and MW-3 only)
<br /> Fumigants(including 1,2,3-trichloropropane) EPA 504.1 0.02 µg/1 Semi-Annually,
<br /> Volatile Organic Compounds EPA 8021B or 0.5 µg/16 Semi-Annually,
<br /> (including 1,2-DCP and toluenes) 8260B
<br /> 1 For non-detectable results. ;
<br /> 2 In the first quarter(January-March) and in the third quarter(July-September).
<br /> 3 Detection limits for Barban, Chlorpropham,Mexacarbate,Propachlor, and Propham are 5 µg/1.
<br /> 4 I chlorinated herbicides are not detected in any of the two wells for two consecutive monitoring events,the analytical suite
<br /> may be removed from the schedule for that well.
<br /> s Toluene shall be included in the analytical suite for MW-2 and MW-3 only. If toluene is not detected in any of the two
<br /> wells for two consecutive monitoring events,the analyte may be removed from the schedule for that well.
<br /> 6 Detection limits for bromomethane and dichlorodifluoromethane are 1 µg/1,and for methylene chloride is 5 µg/1.
<br /> REMEDIATION PILOT STUDY MONITORING ;
<br /> The remediation pilot study monitoring program includes monitoring wells MW-2, MW-4, MW-5, and
<br /> MW-6. The remediation pilot study monitoring program for the four monitoring wells shall follow the
<br /> schedule below. Some of the analyses for the remediation pilot study monitoring program are
<br /> duplicative of those required for the groundwater monitoring program and are repeated only for clarity.
<br /> Two separate analyses are not required. Remediation pilot study monitoring may be discontinued when
<br /> Board staff concurs that the pilot study is concluded.
<br /> REMEDIATION PILOT STUDY MONITORING PROGRAM
<br /> MethodAL
<br /> Detection MW-4, MW-2,
<br /> Constituents Method(s) Limits MW-5 MW-6
<br /> Depth to Groundwater --- 0.01 ft Quarterly Quarterly
<br /> Dissolved gases(methane,carbon dioxide) ASTM D1945,RSK 175M 0.02 mg/1 Annually,'' Quarterly
<br /> General Minerals(nitrate plus nitrite,ammonium, EPA 350,353.2, 376.2, 0.1 mg/l4 Annually2'3 Quarterly
<br /> alkalinity,chloride, sulfide,sulfate) 415,9056, 9060,
<br /> SM 4500,2320, 5310
<br /> Dissolved Metals(arsenic,chromium, copper,iron, EPA 200.7, 601013,7060A, 0.01 mg/l5 Annually2'3 Quarterly
<br /> manganese, mercury,nickel,zinc) 7470A
<br /> Total Metals(iron,manganese) EPA 200.7 0.03 mg/1 Annually2'3 Quarterly
<br /> Metabolic Acids(acetic,butyric,lactic,propionic) HPLC/UV 10 mg/1 Annually2'3 Quarterly
<br /> Volatile Organic Compounds(including 1,2-DCP and EPA 8260B 1 µg/1 Annually2'3 Quarterly
<br /> 1,2,3-trichloropropane)
<br /> Footnotes are on following page
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