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a The Southland Corporation March 31, 1998 Store 19976,Manteca, CA Page 3 Drilling and Soil/Groundwater Sampling Fluor Daniel GTI proposes to install five soil borings to depths of 25 feet below grade as shown on Figure 2. The borings will be installed using a hydraulically-driven geoprobe (direct-penetration) rig equipped with a 1.5- inch diameter by 2-foot-long stainless steel barrel lined with 1-inch-diameter by 6-inch-long brass sample tubes, or a 2-foot-long clear plastic tubing at each location. Soil samples will be collected at 5-foot intervals beginning at 5 feet below grade. All sampling equipment will be steam-cleaned prior to sampling the soil at each interval. Each soil sample will be screened for hydrocarbon vapors using field instruments. Soils encountered during drilling will be logged in accordance with the Unified Soils Classification System by a Fluor Daniel GTI field geologist,working under the supervision of a California registered geologist. One sample tube from each sampling interval wil be sealed with Teflon sheets, capped, taped, labeled, and placed on ice in an insulated container. Each soil sample will be analyzed by a State- certified analytical laboratory for benzene,toluene, ethylbenzene,total xylenes, and TPH-g by EPA Method 801518020, and for MTBE by EPA Method 8260. Upon completion of the boreholes and following extraction of the geoprobe sampling rods,water samples will be collected from each boring and analyzed by EPA Method 8015/8020 and EPA Method 8260 for gasoline constituents(including MTBE). Using the direct-push drilling method, no soil cuttings will be generated during field operations. Following groundwater sample collection, each boring will be grouted with neat cement and topped with cold-patch asphalt to match the existing grade surface. Health and Safety and Permitting The existing Health and Safety plan for the site will be upgraded to reflect the current proposed scope of work as required by the Occupational Health and Safety Administration (OSHA) Standard "Hazardous Waste Operations and Emergency Response"guidelines(29 CFR 1910.120). The plan will be reviewed and signed by all Fluor Daniel GTI personnel and Fluor Daniel GTI subcontractors performing work at the site. Any applicable boring installation permits will be obtained from the appropriate agencies prior to work initiation. Reporting Within four to six weeks of field work completion,a report detailing field and laboratory findings will be submitted to Southland and the SJCDEH for review. The report will be reviewed and signed by a California registered geologist. FLUOR DANIEL GTI