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K L E I N F E L D E R <br />3. The sample is labeled and immediately stored in an iced cooler pending transport to the <br />analytical laboratory. The sample is logged on a chain -of -custody. <br />B-8 TANK REMOVAL SAMPLING <br />B-8.1 Collection of Soil Samples and Laboratory Analysis <br />Soil and water samples will be collected during the tank removal operations in accordance with <br />the current Leaking Underground Fuel Tank Field (LUFT) Manual and the Tri -Regional <br />Guidelines issued by the California Regional Water Quality Control Board (RWQCB). <br />A Kleinfelder, environmental geologist will be on site during the tank removal activities to <br />collect soil samples for qualitative field screening and laboratory analysis. Tank excavation soil <br />samples will be obtained by scraping the sidewalls or excavation bottom at the desired locations <br />with the backhoe bucket. Samples will then be collected from the bucket by packing soil in a <br />clean brass tube with a clean hand trowel. The soil samples may also be collected using a slide <br />hammer lined with a clean brass tube with appropriate extension to reach the desired sampling <br />depth. The collected brass tubes will then be sealed with Teflon sheets and tight fitting plastic <br />caps. <br />B-8.2 Collection of Water Samples and Laboratory Analysis <br />If water is encountered in the excavation after the tank is removed, a representative sample will <br />be collected for laboratory analysis. The tank excavation may be purged and allowed to refill <br />before sampling. The water sample will be collected using a clean disposable bailer with new <br />nylon cord. The bailer will be retrieved and the water will be contained in appropriate bottles <br />supplied by the analytical laboratory for the requested analysis. <br />In accordance with the Tri -Regional Guidelines one water sample will be collected from the tank <br />excavation. The water sample will be delivered under chain -of -custody procedures to a state <br />certified laboratory. <br />20-3978-03.CHEV / ST02R111 Page B-8 <br />Copyright 2002 Kleinfelder, Inc. July 1, 2002 <br />