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Extraction Well Installation <br /> Summary Report and Injection <br /> ARCADIS Well Installation Work Plan <br /> Former Occidental Chemical <br /> Corporation Facility <br /> Lathrop, California <br /> • DBCP and EDB according to the California Department of Health Services Method <br /> • Organochlorine pesticides and benzene hexachloride isomers according to U.S. Environmental <br /> Protection Agency(USEPA)Method 8081A <br /> • Organophosphorus pesticides according to USEPA Method 8141A <br /> • Herbicides according to USEPA Method 8151A <br /> • Nitrate,chloride, and sulfate according to USEPA Method 300 <br /> • Total dissolved solids according to USEPA Method 160.1 <br /> 4.4 Investigation-Derived Waste Management <br /> Waste materials, including soil cuttings and drilling fluid generated from the installation of INJ-14, will be <br /> placed in DOT-approved containers suitable for subsequent transportation for off-site disposal at a <br /> permitted waste management facility.Waste profiles for any waste stream will be prepared, as required <br /> by the waste disposal facilities. Groundwater from development and sampling activities will be placed in <br /> the influent sump of the on-site treatment system. <br /> 5. Schedule and Reporting <br /> Upon receiving approval from the RWQCB for this report,ARCADIS will initiate proposed pre-field and <br /> field activities. Following the completion of the proposed field activities,ARCADIS will prepare a <br /> summary report and submit a copy of the report to the RWQCB.The report will summarize field <br /> procedures and observations and include boring logs, well construction, and well development details. <br /> The report will be submitted to the RWQCB approximately 8 weeks after the completion of well <br /> development activities. Results of groundwater sampling from the wells and contours of sulfolane in <br /> groundwater will be included in the Semiannual Groundwater Monitoring Reports prepared for the Site. <br /> 6. References <br /> ARCADIS U.S., Inc. 2011d. Site-Specific Health and Safety Plan, Former Occidental Chemical <br /> Corporation Facility, Lathrop, California.June 8. Revised September 23. <br /> ARCADIS U.S., Inc. 2012a. Well Installation and Hydraulic Testing Report and Additional Well <br /> Installation Work Plan, Former Occidental Chemical Corporation Facility, Lathrop, California. <br /> February 28. <br /> 'alh.p vrell mstellalan report final(042913)door 11 <br />