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B-6 Leachate Monitoring <br /> 1 The leachate nser or wells are first opened and allowed to equilibrate with the <br /> atmosphere <br /> 2 The leachate elevation is then measured from a set location using a conductivity-based <br /> water-level meter The level is generally measured from a surveyed mark on the north <br />' rim of the casing <br /> 3 A leachate sample is then collected using a clean, disposable bailer <br /> 4 The sample is labeled and immediate) stored in an iced cooler pending transport to the <br /> p Y p g p <br /> analytical laboratory The sample is logged on a chain-of-custody <br /> B-7 Surface Water Monitoring <br /> 1 Prior to collecting surface water samples, the depth of water is estimated at a designated <br /> location in the surface water body <br />' 2 Surface water samples are collected directly from the stream or surface water using a <br /> clean unpreserved plastic bottle, disposable bailer, bailer, coliwasa, DipstikTM, dipper, <br /> peristaltic pump, etc , or by directly filling the sample containers Sampling equipment <br /> will either be disposable, dedicated or decontaminated in accordance with the above- <br /> defined decontamination protocols <br /> 3 Care is taken not to disturb the stream bottom and introduce sediment in the sample The <br /> fluid is then poured into appropriate preserved or unpreserved bottles for the requested <br /> analysis <br /> 4 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_ Anal <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 /> 20-1417-16 E0212000R578 Page B-7 <br /> 11,2000 Rknnfelder, Inc July 28,2000 <br /> 1Cl LINFELINR 28-11) I�i�i Nivtic Sti(o 41nc kion (A I15 0S 471)4 (20,11 '1 Ifi I i 1-3 (2091 ')M 002 1 t 1v <br />