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V*� Nd <br /> The alternative to analysis of vadose zone water is taking soil samples from prescribed depths and <br /> analyze the soil for nitrate-nitrogen content. Illustrate below in Table 2, are the contents of the <br /> nitrate-nitrogen concentrations from the sampled depths. The test results are discussed in the <br /> Conclusions Section of this Report. <br /> TABLE 2 <br /> SAMPLE LOCATION, SOIL NITROGEN SOIL CHLORIDE pH AND <br /> SAMPLE DEPTH AND CONCENTRATION CONCENTRATION CATION <br /> (SAMPLE NUMBER) EXCHANGE <br /> CAPACITY(CFC) <br /> WESTERNMOST 46 ppm NO,-N 27 ppm CI 7.2 30.5 meq/100g <br /> FILTER BED High CEC <br /> DIRECTLY UNDER Very High(VH)Concentration <br /> DRAIN ROCK <br /> (UDR) <br /> WESTERNMOST 29 ppm NO,-N 55 ppm C1 7.9 36.2 meq/1008 <br /> FILTER BED 37%decrease from UDR Very High CEC <br /> 1 FT BELOW <br /> DRAIN ROCK High(H)Concentration <br /> (1 FT) <br /> WESTERNMOST 1 I ppm NO,-N 41 ppm C1 8.1 34.1 meq/100g <br /> FILTER BED 62%decrease from the 1 FT depth Very High CEC <br /> 2 FT BELOW and a'76%decrease from UDR <br /> DRAIN ROCK <br /> (2 FT) Low(L)Concentration <br /> IV. WELL WATER INFORMATION <br /> The existing on-site well that is located directly south of proposed Building "A" as noted on the Site <br /> Plans, was sampled for the analyses indicated in Table 3. The construction details of this well are <br /> unknown; however, it is assumed the well is relatively deep, thus revealing low nitrate, chloride and <br /> Total Alkalinity concentrations. <br /> TABLE 3 <br /> DOMESTIC WELL WATER ANALYSIS <br /> ANALYTE LEVEL FOUND MAXIMUM CONTAMINANT LEVEL(MCL) <br /> Nitrate 7 mg/L 45 mg/L (ppm) <br /> Total Dissolved Solids 760 mg/L 1000 mg/L <br /> Electrical Conductivity 1180 µmhos/cm 1600 mg/L <br /> Chloride 87 mg/L 500 mg/L <br /> Total Alkalinity 157 mg/L No Standard <br /> Page -5- <br /> Chesney Consulting <br />