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S E C 0 R <br /> Ms. Vicky McCartney <br /> September 15, 2003 <br /> Page 6 <br /> Remediation System Troubleshooting and Startup <br /> Upon completion of the OS system installation, the OS system will be brought on-line to verify the <br /> correct operation of process equipment and controls, and to troubleshoot and repair any component <br /> of the system not operating correctly. Once the system is fully operable, official startup will be <br /> performed. Data from the OS system start-up will be tabulated to evaluate the remediation system <br /> performance. <br /> Remediation System Operation and Reporting <br /> Reports documenting the performance of the OS system will be submitted quaff. The <br /> remediation system will be checked, and maintenance activities will be performed on a monthly basis <br /> to ensure that the system is operating properly and effectively. As part of the system operation and <br /> maintenance, SECOR will check and maintain equipment, and monitor the. OS system for fugitive <br /> ozone emissions in lateral piping trenches and well boxes. The OS system will be operated until <br /> -remediation goals are achieved, or until the remediation effort is shown to no longer be technically or <br /> economically feasible. <br /> Future quarterly remedial report submittals will include a summary of remediation system <br /> performance, and an evaluation of dissolved petroleum hydrocarbon concentrations detected in site <br /> groundwater monitoring wells to determine whether OS is an effective technique for <br /> reducing/removing petroleum hydrocarbons in soil and groundwater beneath the site. <br /> WORK PLAN FOR ADDITIONAL OFF-SITE ASSESSMENT AND OS WELL ' <br /> INSTALLATION <br /> As discussed above, a total of 10 OS wells (OS-1 through OS-10) are proposed across the site as <br /> part of a revised interim remedial action plan to control off-site migration of source area impacts, and <br /> to remediate residual petroleum hydrocarbons and MtBE beneath the site. In addition, two <br /> groundwater monitoring wells (MW_11_and,�MW12) are proposEd_in order to further define the extent <br /> df the dissolved petroleum hydrocarbon and MtBE plume in the vicinity of downgradient well MW-6. <br /> Locations of proposed OS and groundwater monitoring wells are shown on Figure 2..The specific <br /> scope of work is discussed below: <br /> • Site Health and Safety Plan. As required by the Occupational Health and <br /> Safety Administration (OSHA) Standard "Hazardous Waste Operations and <br /> Emergency Response" guidelines (29 CFR 1910.120), and by the California <br /> Occupational Health and Safety Administration (Cal-OSHA) "Hazardous Waste <br /> Operations and Emergency Response" guidelines (CCR Title 8, Section 5192), <br /> SECOR will update the current site-specific Health and Safety Plan (HASP) prior <br /> to the commencement of fieldwork. The HASP will be reviewed by field staff and <br /> contractors before beginning field operations, and will be in the possession of <br /> SECOR personnel while conducting work activities at the site. <br /> • Permitting. Well construction permits for the groundwater monitoring and OS <br /> wells will be obtained from the SJCEHD. Encroachment permits will be obtained <br /> for the off-site groundwater monitoring wells proposed in the city right-of-way <br /> 1AConocoPhi11ips\Tosco Marketing1111931Reports\Revised IRAP&WP.doc <br />