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Off-Site Groundwater Well Installation Work Plan <br /> McBillin Real Estate Investment Property <br /> 2154 South El Dorado Street <br /> Stockton, San Joaquin County,California <br /> Page 6 <br /> decontaminated prior to use, and in between use in each well using LiquinoxTM and rinsing with <br /> clean water. All purge and development water will be retained onsite in Department of <br /> Transportation-approved 55-gallon steel drums, pending proper disposal at an off-site location under <br /> manifest. <br /> GROUNDWATER SAMPLE COLLECTION (POST WELL DEVELOPMENT) <br /> After completion, the groundwater monitoring well development described above, a grab <br /> groundwater sample will be collected from each of the newly constructed and developed <br /> groundwater monitoring wells. The grab groundwater samples will be collected immediately upon <br /> completion of the well development activities and consist of the following sample collection method. <br /> Apex staff will utilize a disposable bailer to collect a water sample from each of the monitoring wells <br /> and place them in the required sample containers, for shipment under chain-of-custody <br /> documentation to California Laboratory Services in Rancho Cordova for laboratory analysis as <br /> summarized in the Groundwater Analysis Section below. Follow-on groundwater sampling from the <br /> new monitoring wells will be completed consistent with the balance of the wells associated with the <br /> Site within the 2nd and 41h quarters of each calendar year until such time as the CVRWQCB modifies <br /> the schedule. <br /> GROUNDWATER ANALYSIS <br /> All groundwater samples will be submitted to a state certified laboratory for analysis of the analytes <br /> shown below. <br /> Analysis Abbreviation Designation USEPA Method No. <br /> Total Petroleum TPHg Gas/Diesel- 8260M <br /> Hydrocarbons as Gasoline Range (TPHg)/8015M <br /> Total Petroleum TPHd Hydrocarbons (TPHd) <br /> Hydrocarbons as Diesel <br /> Benzene <br /> Toluene Aromatic <br /> Eth (benzene BTEX Volatile <br /> X lenes Total Organics <br /> Tertiary Butyl Alcohol TBA <br /> Methyl Tertiary Butyl Ether MTBE <br /> Di-isopropyl Ether DIPE Five Fuel 8260B <br /> Ethyl TertiaryButyl Ether ETBE Oxygenates <br /> Tertiary Amyl Methyl Ether TAME <br /> 1,2-Dichloroethane 1,2-DCA Lead <br /> 1,2-Dibromoethane EDB Scavengers <br /> Naphthalene N Aromatic <br /> Hydrocarbon <br />