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v <br /> California where each will be properly destroyed by Erickson, Incorporated. <br /> (7) Corrective action taken to date includes the excavation and stockpiling of piping backfill <br /> material. Soil stockpiles were characterized according to those procedures specified by San <br /> Joaquin County Public Health Services. Pending results of the characterization, stockpiles <br /> will be hauled offsite for disposal or petitioned for reuse onsite. Further corrective action is <br /> being performed on preexisting soil and groundwater contamination according to details <br /> described in Geraghty&Miller's Corrective Action Plan dated August 2, 1995. The remedial <br /> activities described in the corrective action plan will adequately address any potential impact <br /> to groundwater that the latest unauthorized release(s)may cause. <br /> Several environmental investigations have been performed at the subject site in response to <br /> prior release(s). The extent of soil and groundwater contamination has been adequately <br /> defined. Quarterly groundwater monitoring has occurred since March, 1989 and is <br /> continuing in nine site-related wells. <br /> A final report documenting all piping removal activities, soil stockpile characterization,and <br /> disposition will be submitted to San Joaquin County Public Health Services within 45 days of <br /> completing all stockpile characterization activities. <br /> The need for future site investigation will be determined upon review of the results from the <br /> corrective action activities. <br /> (8) The method of cleanup implemented to date has been limited to the overexcavation of <br /> backfill material and hydrocarbon-impacted soil from the removal of former UST's in 1989. <br /> Additional cleanup activities will proceed according to the Corrective Action Plan dated <br /> August 2, 1995. The installation of remediation equipment is currently underway. The <br /> proposed remediation system start-up date is November 29, 1996. Remediation will continue <br /> until site clean-up goals have been met. <br /> (9) A total of approximately one hundred and forty cubic yards of soil were stockpiled at the <br /> subject site. This backfill material was generated during the removal of all piping. An <br /> estimated one hundred and fifty cubic yards of additional soil should be generated during <br /> further underground trenching that is to be performed. All stockpiled soil has and will be <br /> sampled by Touchstone Developments according to those protocol specified by San Joaquin <br /> County Public Health Services. Once stockpile characterization has been performed, <br /> permission will be requested to reuse as much as possible onsite as trench backfill material. <br /> Those stockpiles unable to be reused onsite will be transported to BFI Vasco Road Landfill in <br /> Livermore, California for disposal. <br /> (10)All new underground storage tanks and lines are being installed under permit by San <br /> Joaquin County Public Health Services. <br /> (11)Future releases will be prevented through the installation of underground storage and <br /> dispensing equipment that meets or exceeds all applicable regulations. <br /> 2652 (d) Chevron will comply with all reporting requirements specified within this subsection. <br /> (e) Chevron will conduct initial abatement, site characterization, and additional corrective <br /> action as specified within this subsection,within sections 2653, 2654,and within Article 11. <br /> (f) Chevron understands the language within this subsection. <br />