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0 <br /> 3 Delta will sample select vapor extraction and monitoring wells The onsite water supply well will also <br /> be sampled The next sampling event is tentatively scheduled for March 2002 Groundwater <br /> samples will be analyzed for total petroleum hydrocarbons as gasoline (TPHG), benzene, toluene, <br /> ethylbenzene, and total xylenes (BTEX) by USEPA Method 8015/8020 DHS LOFT, and for tertiary <br /> butyl alcohol (TBA), methyl tertiary butyl ether (MTBE), di-isopropyl ether (DIPE), ethyl tertiary butyl <br /> ether (ETRE), tertiary amyl methyl ether (TAME), and 1,2-dichloroethane (1,2-DCA) using USEPA <br /> Method 8260A The sample from the onsite water supply well will be additionally analyzed for <br /> nitrates using USEPA Method 300 0, and for fecal coliforms using APHA standard parameters <br /> 4 Delta will oversee the installation of lateral conveyance piping to select onsite wells <br /> 5 Delta will conduct compliance soil sampling beneath product dispensers and piping during site <br /> renovation activities <br /> 6 Delta will submit a Soil Sampling Report documenting the results of the soil sampling activities <br /> ATTACHMENTS <br /> • Table 1 Groundwater Monitoring Summary, Monitoring Well MW-1 <br /> • Table 2 Groundwater Level Data <br /> • Table 3 Groundwater Analytical Summary <br /> • Figure 1 Site Location Map <br /> • Appendix A Field Data Sheets <br /> • Appendix B Sampling and Analysis Procedures <br /> • Appendix C Certified Analytical Reports and Chain-of-Custody Records <br />�i <br /> P 1ARCO161001QTRLY120011Axo_6100_4Q01 doc Delta <br />