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k� K L E I N F E L D E R <br /> A-8 TANK REMOVAL SAMPLING <br /> A-81 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, enviromnental 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 /> A-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 /> 20-4439-01 E04/ST02R397 Page A-8 <br /> Copyright 2002,Klemfelcler, Inc August 22,2002 <br />