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pending the results of the initial sample analyses. The samples will be cut directly from the direct-push acetate liners. The liners will be sealed with Teflon tape and vinyl end caps, labeled, stored on ice in a thermally insulated cooler, and transported under chain-of-custody protocol to a state-certified analytical laboratory. 3.3 GROUNDWATER SAMPLING Each of the soil borings will be drilled into the first aquifer for the collection of groundwater samples. A groundwater sample will be collected from each boring using a new disposable bailer or tubing with check valve. The samples will be collected in clean 40-milliliter, hydrochloric-acid-preserved, volatile organic analysis (VOA) vials supplied by the analytical laboratory. The sample containers will be sealed, labeled, stored on ice in a thermally-insulated cooler, and then transported under chain-of-custody protocol to a state-certified analytical laboratory. All reusable groundwater sampling equipment will be thoroughly washed with a Liqui-Nox solution, rinsed with tap water, and then rinsed with distilled water prior to each use. The completed borings will be filled and sealed with a grout mixture consisting of neat cement, in accordance with SJCEHD and DWR requirements, under the supervision of an SJCEHD grout inspector. 3.4 LABORATORY ANALYSES The soil and groundwater samples will be analyzed for TPH-g, BTEX, five fuel oxygenates (DIPE, ETBE, MTBE, TAME, and TBA), and fuel additives 1,2-dicholoroethane (1,2-DCA) and EDB by EPA Method 8260B. 3.5 MONITORING WELL INSTALLATION ETIC proposes to install three or more 2-inch diameter groundwater monitoring wells downgradient and cross-gradient of the former UST excavation at the Site. The proposed locations for the wells and details concerning their construction will be based on the results of the direct-push subsurface investigation proposed in this work plan and will be submitted in a subsequent letter as an addendum to this work plan for CVRWQCB approval. The letter addendum will be submitted within 30-days of the receipt of the analytical data from the investigation. Details summarizing well installation procedures are presented below. 3.5.1 Drilling and Soil Sampling Prior to drilling activities, the proposed soil boring locations will be marked and checked for the presence of underground utilities by Underground Service Alert. A private utility-locating 8