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Each soil sample will be sealed with Teflono fila and plastic end caps, labeled, packaged in ars iced cooler and transported with chain-of-custody documentation to s state oft California-certified hazardous waste testing laboratory for analysis.;The lab will analyze each of the soil samples on s standard turn-around time for T H-as-jet fuel,T H-as-gas aline arra BTEX by EPA Method 8020/8015M, and for IVITBE, 1 II E, ETBE, TAME, and TBA by EPS Method 8260B. Qroundw ter onitorir Sam lin and Anel els After the new monitoring well seals have set, and on a quarterly basis thereafter, the new wells and the existing ells will be monitored and sampled. Depth-to-groundwater and free product thickness (if necessary)will be monitored using d water level indicator capable of measurements to within 0.01 foot. Following groundwater level measurements, the wells will be purged and sampled. The wells will be;purged with<decontaminated pumps and dedicated disposable tubing until a least three well casing volumes have been removed and/or after groundwater temperature, pH and electrical conductivity valves have stabilized. Groundwater will be sampled from the wells using disposable polyethylene bailers and laboratory-supplied containers. Each sample container will be labeled, packaged in an iced cooler and transported for analysis with chain-of-custody documentation to a state of California certified hazardous waste testing laboratory, The lab will analyze each groundwater sample on a standard turn-around for T H-as-jet fuel, Tl l _as- gasoline and BTEX by EPA Method 802018431511, and for MTBE, DIPE, ET , TAME, and TBA by Epi Method 8260B. 3.3 Cone Penetration Testing To delineate the soil stratigraphy a rd'defs'ne the vertical extent of petroleum hydrocarbons below 5 feet, CPT data and depth-discrete groundwater samples will be collected from one location near the northeast corner of the former UST complex (Figure . This CTT location is proposed because it is on the downgr dient site of the former UST complex, and it is in the area where the highest concentrations of petroleum hydrocarbons have been detected in subsurface soil. The proposed CPT goring will be extended to a depth of approximately 95 feet bgs, however,the actual depth of the boring will be based on fieldobservations and the performance of the COPT rig. 10