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KLEINFELDER A-7 Surface Water Monitoring 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 immediately stored in an iced cooler pending transport to the analytical laboratory. The sample is logged on a chain -of -custody. A-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). A Kleinfelder, environmental geologist will be on site during the tank removal activities to collect soil samples for qualitative field screening and laboratory analysis. Tank excavation soil samples will be obtained by scraping the sidewalls or excavation bottom at the desired locations with the backhoe bucket. Samples will then be collected from the bucket by packing soil in a clean brass tube with a clean hand trowel. The soil samples may also be collected using a slide hammer lined with a clean brass tube with appropriate extension to reach the desired sampling depth. The collected brass tubes will then be sealed with Teflon sheets and tight fitting plastic caps. A-8.2 Collection of Water Samples and Laboratory Analysis If water is encountered in the excavation after the tank is removed, a representative sample will be collected for laboratory analysis. The tank excavation may be purged and allowed to refill before sampling. The water sample will be collected using a clean disposable bailer with new nylon cord. The bailer will be retrieved and the water will be contained in appropriate bottles supplied by the analytical laboratory for the requested analysis. In accordance with the Tri -Regional Guidelines, one water sample will be collected from the tank excavation. The water sample will be delivered under chain -of -custody procedures to a state certified laboratory. 20-1108-33.001/2011R1188 Page A-8 ° 2001, Kleinfelder, Inc. October 17, 2001