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KLEINFELDER B-8 TANK REMOVAL SAMPLING 13-8.1 Collection of Soil Sax>ttples and Laboratory Analysis Soil and water samples will be collected during the tank removal operations in accordance with the current I,ealwiu Underground Fuel Tank field (LUFT) Manual and the Tri-Regional Guidelines issued I)v tllc California Regional Water Quality Control Board (RWQCB). A Kleinf'elder. environmental ocologist will be on site during the tank removal activities to collect soil samples f'or qualitative field screening algid .laboratory analysis. Tani: excavation soil samples will be obuiined by scraping- the sidewalls or excavation bottom at the desired locations with the backhoe bucket. Samples \-Mill then be collected from the bucket by packing soil in a clean brass tube with a clean hand trowel. The soil samples may also be collected using a slide hammier lined \-vith a clean brass tube with appropriate extension to reach the desired sampling depth. The collected.brass tubes will then be sealed with Teflon sheets and tight fitting plastic caps. 13-8.2 Collection of Water Samples and Laboratory Analysis If water is encountered in the excavation after the tank is removed, a representative sample will be collected for laboratory analysis. The tank excavation may be purged and allowed to refill before sampling. The \rater sample will be collected using a clean disposable bailer with new nylon cord. The bailer will be retrieved and the water will be contained in appropriate bottles supplied by the analytical laboratory for the requested analysis. In accordance with the 1-ri-Regional Guidelines one water sample will be collected from the tank excavation. The water sample will be delivered under chain-of-custody procedures to a state certified labaratorv. { 20-2864-02.1-0 3/2 0 1 91103 2 rage 13-8 Copyright 199ii. K[Ci1)FC1Lir1'. [nc. January 14, 1999 1