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TABLE 5-4 <br /> SUMMARY GROUND WATER SAMPLE ANALYTICAL RESULTS <br /> • TOTAL CHROMIUM, Cr", AND TOTAL LEAD <br /> on�tci>e��n . . <br /> della: +vent char "M,:: w� Lea�� <br /> 3rd qtr-1990 0.06 NA <0.0050 <br /> 4th qtr-1990 0.11 NA <0.0050 <br /> 1st qtr-1991 0.096 NA <0.0050 <br /> 2nd qtr-1991 0.08 NA <0.0050 <br /> 3rd qtr-1991 0.28 NA <0.0050 <br /> 4th qtr-1991 0.068 NA <0.0050 <br /> 1st qtr-1992 0.011 <0.010 NA <br /> 2nd qtr-1992 0.058 0.049 NA <br /> 3rd qtr-1992 0.048 0.052 NA <br /> 4th qtr-1992 0.052(0.044) NA(0.043) <0.0050(<0.0050) <br /> MWAA 1st qtr-1993 0.051 0.047 NA <br /> 2nd qtr-1993 0.069 0.06 NA <br /> 3rd qtr-1993 0.072 0.062 NA <br /> Number of Detects 13 5 0 <br /> Number of Analyses 13 6 7 <br /> Percent Detected 100 83 ND <br /> Minimum Concentration Detected 0.011 0.005 ND <br /> Maximum Concentration Detected 0.28 0.06 ND <br /> Average Concentration 0.081 0.05 ND <br /> Geometric Mean Concentration` 0.065 0.036 ND <br /> Standard Deviation 0.064 0.021 ND <br /> 3rd qtr-1990 110 NA <0.005 <br /> 4th qtr-1990 0.11 NA <0.0058 <br /> 1st qtr-1991 0.11 NA <0.005 <br /> 2nd qtr-1991 0.098 NA <0.005 <br /> 3rd qtr-1991 0.1 NA <0.005 <br /> 4th qtr-1991 0.1 NA <0.005 <br /> 1st qtr-1992 0.014 0.013 NA <br /> 2nd qtr-1992 <0.0010 0.086 NA <br /> 3rd qtr-1992 0.06 0.062 NA <br /> 4th qtr-1992 0.086 0.072 <0.0050 <br /> MW-113 1st qtr-1993 0.11 0.093 NA <br /> 2nd qtr-1993 0.11 0.09 NA <br /> 3rd qtr-1993 0.11 0.094 NA <br /> Number of Detects 12 7 0 <br /> Number of Analyses 13 7 7 <br /> Percent Detected 92 100 ND <br /> Minimum Concentration Detected 0.0005 0.013 ND <br /> Maximum Concentration Detected 110 0.094 ND <br /> Average Concentration 8.539 0.073 ND <br /> • Geometric Mean Concentration` 0.115 0.063 ND <br /> Standard Deviation 30.485 0.029 ND <br /> /u/cling/tracy/ri/tables/ritbl5-4 5-4-1 <br />