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UNDERGROUND STORAGE TANK REMOVAL <br /> AT&T <br /> MICROWAVE RELAY FACILITY <br /> • LODI,CALIFORNIA <br /> 3.0 PURPOSE AND SCOPE OF SERVICES <br /> The investigation outlined was designed to assess the integrity of the UST, and to verify the lack of <br /> hydrocarbon product in the surrounding soil To accomplish this objective, ATC performed the <br /> following tasks <br /> • Observed and documented UST removal operations, <br /> • Collected soil samples from locations within the excavation and soil stockpiles and submitted <br /> them for laboratory analysis, <br /> • Prepared a report of findings, with conclusions and recommendations <br /> 4.0 INVESTIGATIVE AND LABORATORY METHODS <br /> 41 Field Procedures <br /> Closure procedures were conducted in accordance with UST removal requirements stipulated by the <br /> San Joaquin County Public Health Services, Environmental health Division(EHD) Site activities were <br /> conducted under the supervision of a State of California Registered Geologist(R G) Field operations <br /> were monitored or conducted by a qualified geologist supervised by the R G All field operations <br /> personnel were trained in accordance with 29 CFR 1910 (40-hour OSHA Hazardous Materials <br /> Handling, and Health and Safety Training) <br /> The UST removal permits were obtained from the San Joaquin County EHD on December 3, 1998, <br /> prior to performing the UST removal activities Copies of regulatory agency permits are presented in <br /> Appendix A Inspector Letitia Briggs was the on-site representative from the San Joaquin County <br /> EHD, the local implementing agency responsible for UST removal Inspector Briggs was present <br /> during UST removal, and soil sampling activities <br /> 42 UST Cleaning <br /> At the time the UST was originally abandoned in place, it was filled approximately two thirds full with <br /> a non-solidified cement grout mixed with diesel fuel On January 27, 1999 the top of the UST was cut <br /> off by Kvaerner to allow access to the interior cement grout On January 28, 1999, 3,600 gallons of <br /> diesel fuel product was removed from the UST by Asbury Environmental Services and disposed of at <br /> the Ramos Environmental TDS facility in West Sacramento, California On March 1, 1999, 3,100 <br /> additional gallons of diesel fuel product was removed from the UST by Ramos Environmental and <br /> disposed of at the Ramos Environmental TSD facility in West Sacramento, California Copies of the <br /> • product disposal documents are presented in Appendix B Kvaerner added fly ash to the remaining <br /> ATC Associates Inc 61059 0429 <br /> 2 <br />