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KLEINFELDER <br /> 5.4 SURFACE WATER <br /> Surface water samples were first collected during AT <br /> p g the SW investigation and periodically <br /> since then. The focus of the sampling has been detection of asbestos fibers. <br /> 5.4.1 SWAT Sampling <br /> Three surface water samples were collected on January 16, 1990 following a storm event <br /> sufficient to produce flows in the channel crossing the J-M Mfg. site. The surface water <br /> sample locations are shown on Drawing 2 as filled triangles, where SW-1 is the SWAT <br /> upstream monitoring point, SW-2 is an intermediate sampling point, and SW-3 is the SWAT <br /> downstream monitoring point. The samples were analyzed for: <br /> ■ volatile halogenated compounds by EPA Method 601, <br /> ■ volatile aromatic compounds by EPA Method 602, <br /> ■ metals by ICAP and AA (EPA Method 6010), <br /> ■ major anions (sulfate, chloride, bicarbonate, carbonate, and nitrate), <br /> • pH, total dissolved solids (TDS) and electrical conductivity (EC). <br /> asbestos (Transmission Electron Microscope) <br /> Results of these analyses are discussed in the following paragraphs. <br /> 5.4.1.1 Volatile Organic Compounds _ <br /> No volatile organic compounds were detected in the surface water samples. <br /> Metals <br /> Four metals (aluminum, barium, manganese, and zinc) were detected in all three surface water <br /> samples. The highest concentrations of aluminum and manganese were reported in the <br /> upstream sample. The highest concentrations of barium and zinc were detected in the <br /> CR14-92-12 Page 20 of 39 24-22oio9-Fog <br /> Copyright 1992 Kleinfelder, Inc. <br />