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MONITORING AND REPORTING PROGRAM ORDER NO. R5-2015-0012 3 <br /> HUMAN SERVICES AGENCY, 145 SOUTH SUTTER STREET, STOCKTON, CA 95202 <br /> IN-SITU REMEDIATION OF PETROLEUM HYDROCARBONS <br /> SAN JOAQUIN COUNTY <br /> Table 2: Analytical Methods <br /> Constituent Method' Maximum Practical <br /> Quantitation Limit /L z <br /> Suite A <br /> Total petroleum hydrocarbons as EPA 8015B 50 <br /> gasoline TPH- <br /> Total petroleum hydrocarbons as EPA 8015B 50 <br /> diesel TPH-d <br /> Benzene EPA 8020 or 8260B Benzene (1.0) <br /> Toluene Toluene (5.0) <br /> Ethylbenzene Ethylbenzene (5.0) <br /> Total Xylenes MTBE (1.0) <br /> MTBE Naphthalene (1.0) <br /> Naphthalene o-Xylene (5.0) <br /> m, -X Ienes 10 <br /> Nitrate EPA 6500/300.0 200 <br /> Sulfate EPA 6500/300.0 500 <br /> Suite B <br /> Metals, Dissolved EPA 6010/6020/200.8 Various <br /> Total chromium EPA 6010/6020/200.8 5 <br /> Hexavalent chromium EPA 7199/218.6 1.0 <br /> Total dissolved solids EPA 160.1 or SM 2540C 10,000 <br /> Bromide EPA 300.0 250 <br /> Bromate EPA 300.1 5 <br /> ' Or an equivalent EPA Method that achieves the maximum Practical Quantitation Limit. <br /> 2 All concentrations between the Method Detection Limit and the Practical Quantitation Limit shall be <br /> reported as an estimated value. <br /> 3 Metals include arsenic, iron, and manganese. <br /> FIELD SAMPLING <br /> In addition to the above sampling and laboratory analyses, field sampling and analysis shall <br /> be conducted each time a monitoring well is sampled. The sampling and analysis of field <br /> parameters shall be as specified in Table 3. <br /> Table 3: Field Sampling Requirements <br /> Parameters Units Practical Analytical Method <br /> Quantitation Limit <br /> Groundwater Elevation Feet, Mean Sea Level 0.01 feet Measurement <br /> Oxidation-Reduction Potential Millivolts 10 millivolts Field Meter <br /> Electrical Conductivity uhmos/cm 50 pS/cm Field Meter <br /> Dissolved Oxygen mg/L 0.2 mg/L Field Meter <br /> pH pH Units (to 0.1 units) 0.1 units Field Meter <br /> Temperature °F/°C 0.1 °F/°C Field Meter <br />