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is <br /> I.,. addition to the tank bottom soil samples, a sample was gath- <br /> ered from the tank overburden pile and a sample of the tank T--6 <br /> sludge was collected. <br /> The following is a list of the analytical parameters for each <br /> sample gathered. <br /> Soil sample # <br /> Analytical Parameters <br /> R' T1,T2 & T2b TPH - EPA Method 8015 mod <br /> BTX - EPA Method 8020 <br /> rNT3,T3b,T4,T4b & TPH -- EPA Method 8015 mod <br /> E.+ T5,T5b & Overburden (Composite) BTX - EPA Method 8020 <br /> organolead - Atomic Adsorption <br /> EDB - Extraction Method <br /> T6 & T6-Sludge TPH - EPA Method 8015 mod <br /> BTX - EPA Method 8020 <br /> Organolead - Atomic Adsorption <br /> EDB - Extraction Method <br /> Solvents - EPA Method 8010 <br /> PCB's - EPA Method 8080 <br /> i <br /> T7, TS & T9 TPH - EPA Method 8015 mod <br /> :-+ BTX -- EPA Method 8020 <br /> Organolead - Atomic Adsorption <br /> EDB - Extraction Method <br /> -,- Solvents - EPA Method 8010 <br /> t1 <br /> The analytical results for these samples are included as Appendix <br /> B. <br /> I since no information is available regarding the tanks and no <br /> integrity tests were performed on the tanks, no reasonable <br /> estimate can be made regarding the amount of product which may <br /> t" have been released. However, the tanks appeared to be in <br /> ally good condition upon removal, gener- <br /> 5.0 EXPLORATORY SOIL BORING ARID MONITOR WELL SITING <br /> Three locations have been selected for the installation of the <br /> monitoring wells as shown on Figure 3. The triangular orienta- <br /> tion of the wells should serve both to define a site specific <br /> b.. ground water gradient and provide waterquality information <br /> upgradient and downgradient of the former diesel and gasoline <br /> tank site. Twelve other locations have been selected for explor- <br /> atory soil borings as shown on Figure 3. The soil borings are <br /> placed close in to the tank excavation area and surround it. <br /> This configuration should allow for the assessment of potential <br /> lateral and vertical migration of possible gasoline constituents, <br /> es: <br /> I : <br /> i <br /> - 7 - <br />