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LFR Inc. • • <br /> The wells will be developed a minimum of 24 hours after installation by bailing, <br /> surging, and/or pumping to remove sediment left in the well during construction and to <br /> enhance the hydraulic communication between the well and surrounding sediments. <br /> Observations of pH, temperature, specific conductance, quantity, and clarity of water <br /> withdrawn will be recorded after each well volume has been purged during <br /> development. The wells will be developed until approximately 3 to 10 well casing <br /> volumes are removed or until relatively sediment-free water is produced and field <br /> parameters are stabilized. <br /> Investigation-derived wastewater and waste soil generated during field activities will be <br /> stored in properly labeled 55-gallon drums and placed in a designated, secure location <br /> at the Site. Wastewater and waste soil will be characterized and transported by a <br /> licensed hauler to an appropriate disposal facility. <br /> 3.3 Monitoring Well Sampling <br /> At the completion of well development, a groundwater sample will be collected for <br /> laboratory analysis. The groundwater samples collected from the monitoring wells will <br /> be analyzed for the following constituents: <br /> • total petroleum hydrocarbons-purgeable (TPH-P) gasoline range organics (GRO) <br /> using U.S. Environmental Protection Agency (EPA) Method 8015B/Department of <br /> Health Services Leaking Underground Fuel Tank (DHS LUFT) Manual <br /> • total petroleum hydrocarbons-extractable (TPH-E) diesel range organics (DRO) <br /> using EPA Method 8015B/DHS LUFT Manual <br /> • benzene, toluene, ethylbenzene, and total xylenes (BTEX compounds), methyl <br /> tertiary-butyl ether (MTBE), tertiary-butyl alcohol (TBA), di-isopropyl ether <br /> (DIPE), ethyl tertiary-butyl ether (ETBE), tertiary-amyl methyl ether (TAME), <br /> ethanol, and methanol using EPA Method 8260B <br /> 4.0 SCHEDULE AND REPORTING <br /> LFR anticipates that investigation activities will be initiated (obtaining drilling permits, <br /> encroachment permits, access agreements, etc.) approximately two weeks after <br /> approval of this Work Plan from the RWQCB. The proposed start date for beginning <br /> field activities will be dependent upon the ability to obtain access agreements with the <br /> property owner and/or lessee. Additionally, seasonally wet conditions at the site may <br /> restrict access to this area of the property. <br /> SFPP or LFR will inform the RWQCB as to the progress in obtaining an access <br /> agreement and will provide a schedule of field activities to the RWQCB upon obtaining <br /> all necessary access agreements. <br /> Page 4 wp-Stockton4009 B_C Zone Well Install FINAL.doc <br />