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k'9 KLEINFELDER <br /> A-8 TANK REMOVAL SAMPLING <br /> A-8 1 Collection of Soil Samples and Laboratory Analysis <br /> Soil and water samples will be collected during the tank removal operations In <br />' accordance with the current Leaking Underground Fuel Tank Field (LUFT) Manual and <br /> the Tri-Regional Guidelines Issued by the California Regional Water Quality Control <br /> Board (RWQCB) <br />' A Klemfelder, environmental geologist will be on site during the tank removal activities <br /> to collect soil samples for qualitative field screening and laboratory analysis Tank <br />' excavation soil samples will be obtained by scraping the sidewalls or excavation bottom <br /> at the desired locations with the backhoe bucket Samples will then be collected from <br /> the bucket by packing soil in a clean brass tube with a clean hand trowel The soil <br />' samples may also be collected using a slide hammer lined with a clean brass tube with <br /> appropriate extension to reach the desired sampling depth The collected brass tubes <br /> will then be sealed with Teflon sheets and tight fitting plastic 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 <br /> sample will be collected for laboratory analysis The tank excavation may be purged <br /> and allowed to refill before sampling The water sample will be collected using a clean <br /> disposable bailer with new nylon cord The bailer will be retrieved and the water will be <br /> contained in appropriate bottles supplied by the analytical laboratory for the requested <br />' analysis <br /> In accordance with the Tri-Regional Guidelines one water sample will be collected from <br /> the tank excavation The water sample will be delivered under chain-of-custody <br /> procedures to a state certified laboratory <br /> • <br />' 28209 T09/ST05R1454/DH Iv Page A-8 <br /> 111211115, Klemfelder, Inc November 30, 2005 <br />