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KLEINFELDER B-6 LEACHATE MONITORING r 1. The leachate riser or wells are first opened and allowed to equilibrate with the 4• atmosphere. 2. The leachate elevation is then measured from a set location using a conductivity-based water-level meter. The level is generally measured from a surveyed mark on the north rim of the casing. r 3. A leachate sample is then collected using a clean, disposable bailer. L 4. The sample is labeled and immediately stored in an iced cooler pending transport to the analytical laboratory. The sample is togged on a chain-of-custody. B-7 SURFACE WATER MONITORING 1. Prior.to collecting surface water samples, the depth of water is estimated at a designated location in the surface water body. 2. Surface water samples are collected directly from the stream or surface water using a clean unpreserved plastic bottle, disposable bailer, bailer, coliwasa, DipstikTM, dipper, peristaltic pump, etc., or by directly filling the sample containers. .Sampling equipment will either be disposable, dedicated or decontaminated in accordance with the above- defined decontamination protocols. Care is taken not to disturb the stream bottom and introduce sediment in the sample. The fluid is then poured into appropriate preserved or unpreserved bottles for the requested analysis. 3. The sample is labeled and immediate) stored in an iced cooler pending transport to the Y P g P analytical laboratory. The sample is logged on a chain-of-custody. B-8 TANK REMOVAL SAMPLING B-8.1 Collection of Soil Samples and Laboratory Analysis Soil and water samples will be collected during the tank removal operations in accordance with the current Leaking Underground Fuel Tank Field (LUFT) Manual and the Tri-Regional Guidelines issued by the California Regional Water Quality Control Board (RWQCB). r 34202.E01 /ST03R1130 Page 8 of 9 Copyright 2003,Kleinfelder,Inc. August 8,2003