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k'q KLEINFEL©ER <br /> A-8 TANK REMOVAL SAMPLING <br /> A-8 1 Collection of Soil Samples and Laboratory Analysis <br /> Soli 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 Kleinfelder, 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 /> 1 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 sample Tri-Regional Guidelines one water le will be collected from <br /> g P <br /> the tank excavation The water sample will be delivered under chain-of-custody <br /> procedures to a state certified laboratory <br /> 28209 T091ST05R1323/DH Iv Page A-8 <br /> ©2005, Kleinfelder, Inc October 21, 2005 <br />