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k4 KLEINFELDER collected from the perimeter probes will be collected at depths from surface to approximately 30 feet below ground surface at approximate ten foot intervals. At least one soil sample will be collected beneath groundwater in the centrally located probe. The soil samples in the perimeter probes will be collected above first estimated groundwater. A single grab groundwater sample will be collected from the centrally located dual-tube probe. The groundwater sample will be collected using a disposable or stainless steel bailer or by positive displacement through polypropylene tubing attached to a stainless steel ball valve. A disposable screened PVC casing will be placed within the pushprobe hole to filter out sediment. The PVC casing will include a 5 to 10 foot 0.010-inch slot screened interval, placed within the water bearing zone, prior to groundwater collection. The groundwater will be decanted into laboratory supplied bottles directly from the sampling equipment. After collection, the soil and groundwater samples will be labeled, logged on a chain-of-custody form, and immediately stored in an iced cooler. The samples will be transported under chain-of- custody control to Kleinfelder's office and then transported by courier in a sealed container to a State Certified Laboratory to perform the requested analyses. Approximately twenty-one soil samples and one groundwater sample will be submitted for the following analyses. • Total Recoverable Petroleum Hydrocarbons by EPA Method 418.1. One soil sample, one groundwater sample, and one DI WET leachate sample (From soil sample collected in the estimated capillary fringe area) from the dual-tube probe will also be analyzed for the following: • Total Extractable Petroleum Hydrocarbons (Diesel and Motor Oil Range) [TPH-D/MO] by EPA Method 8015M/DHS LUFT • Total Petroleum Hydrocarbons as Referenced to Gasoline (TPH-G) by EPA Method 8015M • Volatile Organics by EPA Method 8260 including Benzene, Toluene, Ethylbenzene, Xylenes [BTEX] and 5 Oxygenates • Five LUFT Metals by EPA Methods The soil and water samples will be analyzed on a standard turn around time. Task 3 Reporting Upon completion of the field activities and receipt of the analytical results, a report of findings for the advancement of the push probes sampling will be prepared for client and agency review. The report will include: • A description of the field activities, observations, and protocols • Lithologic Logs • Tabulated results of soil and groundwater samples with copies of certified results 02002PROP.ENV/ST05PI74/DH:Iv Page A-3 C 2005 Kleinfelder,Inc. May 16,2005