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TABLE 5-4 (continued) <br /> SUMMARY GROUND WATER SAMPLE ANALYTICAL RESULTS <br /> TOTAL CHROMIUM, Cr+6, AND TOTAL LEAD <br /> 1 <br /> iRd qtr 1990 18 NA <br /> 4th qtr-1990 0.037 NA 0.0097 <br /> Ist qtr-1991 0.0066 NA <0.0050 <br /> 2nd qtr-1991 0.062 NA <0.0050 <br /> 3rd qtr-1991 0.053 NA <0.0050 <br /> i 4th qtr-1991 0.047 NA <0.0050 <br /> lst qtr-1992 0.06 0.022 NA <br /> 2nd qtr-1992 0.047 0.043 NA <br /> 3rd qtr-1992 0.03 0.03 NA. <br /> 4th qtr-1992 0.026 0.029 <0.0050 <br /> MW-2S 1st qtr-1993 0.046 0.043 NA <br /> i 2nd qtr-1993 0.047 0.046 NA <br /> 3rd qtr-1993 0.063 0.062 NA <br /> Number of Detects 13 7 1 <br /> Number of Analyses 13 7 7 <br /> Percent Detected 100 100 14 <br /> Minimum Concentration Detected 0.007 0.022 0.0025 <br /> i Maximum Concentration Detected I6 0.062 0.010 <br /> Average Concentration 1.425 0.039 0.004 <br /> Geometric Mean Concentration` 0.062 0.037 0.003 <br /> Standard Deviation 4.98 0.013 0.003 <br /> 3rd qtr-1990 NI NI NI <br /> 4th qtr-1990 NI NI NI <br /> i 1st qtr-1991 NI NI NI <br /> 2nd qtr-1991 NI NI NI <br /> 3rd qtr-1991 NI NI Ni: <br /> 4th qtr-1991 NI NI Ni <br /> 1st qtr-1992 NI NI NI <br /> 2nd qtr-1992 NI NI NI <br /> 3rd qtr-1992 NI NI NI <br /> 4th qtr-1992 NI NI NI <br /> MW-2C lst qtr-1993 0.013 <0.010 <0.0050 <br /> 2nd qtr-1993 0.011 <0.010 <0.0050 <br /> ' 3rd qtr-1993 0.017 <0.010 <0.0050 <br /> Number of Detects 3 0 0 <br /> Number of Analyses 3 3 3 <br /> Percent Detected 100 ND ND <br /> Minimum Concentration Detected 0.011 ND ND <br /> Maximum Concentration Detected 0.017 ND ND <br /> ' Average Concentration 0.014 ND ND <br /> Geometric Mean Concentration` 0.013 ND ND <br /> Standard Deviation 0.003 ND ND <br /> lulcsingliracylri/wbleslritbl5-4 5-4-3 <br /> 1 <br />