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sampled, name of sampler, and laboratory analysis needed. Once labeled, the sample will be placed into a ziplock baggy, sealed and placed into an ice chest containing ice to keep the sample cool until delivery to the analytical laboratory. Once all soil samples have been obtained a Chain of Custody (CofC) will be completed documenting the site ID, sample ID's, date and time samples were obtained, the laboratory analysis needed, and the name of the sampler. The CofC will follow the samples and document when and who took position of the samples until the California Certified Laboratory, North State Environmental ELAP Certificate No. 1753, analyzes them. SAMPLE ANALYSIS The three UST's contained unleaded gasoline. San Joaquin County Health and the State of California require that the soil samples be analyzed for Total Petroleum Hydrocarbons as gasoline (TPHg) using EPA methods 8015 or 8260, for Benzene, Toluene, Ethylbenzene and Xylenes using EPA methods 8020 or 8260 and the fuel oxygenants (MTBE, TBA, DIPS, ETBE and TAME) using EPA methods 8260. UST AND PRODUCT DISPENSING REMOVAL SOIL SCREENING PERMITS Permits from both the Fire Department and San Joaquin County Health have been obtained and paid for, see Appendix A of CAP. NOTIFICATIONS Underground Service Alert(USA), the City of Stockton Fire Department and San Joaquin County Health will be notified 48 hours in advance of any excavating and/or drilling at the site. OVER-EXCAVATION If an area is over-excavated, the PID will be used to screen the soils being excavated to determine when enough soil has been removed and to monitor the ambient air near the excavation as part of the Health and Safety Plan included with the CAP. It is anticipated that no more than 400 cubic yards of gasoline contaminated soil will be generated during the over-excavation process. Over- excavation will not exceed below 35 feet below ground surface or top of groundwater, whichever occurs first, see Figure 3. And will not extend more than three feet laterally from the original UST excavation sidewalls. Pre-approval from the UST State Fund will be secured prior to over- excavation. 3 R-603 UST WP 2/23/99