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l <br /> LOne set of water samples will be placed in 500-m1 polyethylene bottles, unpreserved, and <br /> submitted for nitrate (NO3) analyses using EPA Method 300 (Table 1). A second set of water <br /> samples will be placed in 1000-m1 polyethylene bottles, acidified with H2SO4, and tested for ; <br /> Total Kjeldahl Nitrogen (TKN) using EPA Method 351.3 and ammonium (NH4) using EPA <br /> Method EPA 350.3. A third set of water samples will be placed in 500-m1 polyethylene bottles, <br /> acidified with HNO3, and tested for general metals. A fourth set will be placed in 1000-m1 <br /> polyethylene bottles, unpreserved, for general mineral analysis. The ample volume of water <br /> r taken from each well allows sufficient sample volume for later replicates if needed. <br /> L <br /> Impact (brass tube) samples may be taken to determine nitrogen concentrations of discrete soil <br /> horizons. To avoid cross-contamination, protective gloves and sampling tools will be washed <br /> in an Alconox solution and rinsed with distilled water before each new boring. The sampling <br /> process will be repeated for deeper borings. Brass tube samples will be sealed with Teflon tape <br /> f and plastic end caps. <br /> L <br /> t <br /> I <br /> i <br /> i <br /> i <br /> C <br /> Sierra-Pacific Groundwater Consultants B-2 <br /> C <br />