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17 <br /> hours, and subsequently by pumping and surging for several more <br /> hours. A steel conductor casing with a locking cap and pump base <br /> would then be installed. Figure 3 is a schematic diagram of a <br /> typical monitor well. <br /> A portable stainless steel Red Jacket submersible pump would <br /> be used for pumping the monitor wells prior to sampling. This pump <br /> has a capacity of about 30 gpm under field operating conditions . <br /> During the initial sampling, pH, electrical conductivity, water <br /> temperature, and pumping level would be frequently measured during <br /> a two hour, or longer, pumping period. This information would be <br /> used to determine how long the well should be pumped prior to <br /> sampling, in order to obtain representative samples. <br /> Water samples would normally be analyzed for major cations and <br /> anions, pH, electrical conductivity, ammonia, organic nitrogen, <br /> iron, manganese, barium, total organic carbon, boron, and total <br /> dissolved solids. For the initial set of samples, all inorganic <br /> chemical constituents in the Primary Drinking Water Standards would <br /> also be determined. BC Laboratories, Inc . of Bakersfield would <br /> analyze the samples. Samples for metals would be collected in <br /> polyethylene containers treated with nitric acid. Samples for <br /> nitrogen forms would be collected in polyethylene containers <br /> treated with sulfuric acid. Samples for total organic carbon would <br /> be collected in amber glass bottles treated with phosphoric acid. <br /> Samples for the remaining determinations would be collected in <br /> untreated polyethylene containers . Samples for nitrogen forms and <br /> total organic carbon would be placed in ice chests and kept cool <br /> until analyses. Samples would be shipped to Bakersfield, <br />