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i <br /> MONITORING AND REPORTING PROGRAM ORDER NO. RS-2008-0149-010 <br /> BARNES TRUCKING FACILITY <br /> SAN JOAQUIN COUNTY <br /> i 'To be sampled before and after, and/or monthly, during the pilot study as indicated; then during the first and third <br /> quartersduring full scale implementation of the corrective action <br /> 'Sample Treatment Zone (AS-1 , MW-5B, DPW-1 [deep] and IW-9, IW-10, IW-7, IW-6 [shallow]), Compliance <br /> Zone (MW-7, 81 12, 13), Transition Zone (MW-9, 10, 11), Background Zone (MW-2, 3, 4) before, during pilot <br /> study and full scale implementation of the corrective action. <br /> Table 2: Analytical Methods <br /> Constituent Method' Maximum Practical Frequency <br /> Quantitation Limit <br /> x <br /> Suite A <br /> T?Hg and EROS GC/MS EPA 8015 50 As indicated in Table 1 <br /> BTEX, MTBE, TBA EPA 8260B 0.50 (1 .0 for total As indicated in Table 1 <br /> xylenes, <br /> 5.0 for TBA) <br /> Suite B <br /> Metals, dissolved! EPA 6010B 2.0 Seven times' <br /> Total Chromium EPA 200.7 or 200.8 10 Seven times' <br /> Hexavalent Chromium EPA 7199 2.0 Seven times <br /> Bromide EPA 300.0 100 Seven times' <br /> Bromate EPA 300. 1 10 Seven times' <br /> ' Or an equivalent EPA Method that achieves the maximum Practical Quantitation Limit. <br /> 2A11 concentrations between the Method Detection Limit and the Practical Quantitation Limit <br /> shall be reported as an estimated value. <br /> 3Will be sampled seven times: one baseline sample prior to remediation and monthly samples <br /> during any "pilot" test and full scale period. <br /> 4Metals include barium cadmium, calcium, copper, lead, magnesium, manganese, mercury, <br /> molybdenum, and nickel. <br /> FIELD SAMPLING <br /> 3 . In addition to the above sampling and analysis, groundwater elevation, electrical <br /> conductivity, DO, pH, and water temperature will be measured and analyzed in the field <br /> during the semi-annual groundwater sampling activities each time a monitoring well is <br /> sampled. The sampling and analysis of field parameters is specified in Table 3. <br /> Table 3 : Field Sampling Requirements <br /> Parameters Units Type of Sample <br /> Groundwater Elevation Feet, Mean Sea Level Measurement <br /> Water Temperature Degrees Celsius Grab <br /> Electrical Conductivity Rhinos/cm Grab <br /> Dissolved Oxygen mgIL Down hole <br /> pH pH units (to 1 .0 units) Grab <br /> Page 6 of 8 <br />