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TABLE 5-4 (continued) <br /> SUMMARY GROUND WATER SAMPLE ANALYTICAL RESULTS <br /> TOTAL CHROMIUM, Cr+6, AND TOTAL LEAD <br /> 3rd qtr-1990 NI NI NI <br /> 4th qtr-1990 NI NI NI <br /> ' 1st qtr-1991 NI NI NI <br /> 2nd qtr-1991 N1 NI NI <br /> 3rd qtr-1991 NI NI <br /> 4th qtr-1991 NI NI NI <br /> 1st qtr-1992 NI NI NI <br /> 2nd qtr-1992 NI NI N1 <br /> ' 3rd qtr-1992 NI NI NI <br /> 4th qtr-1992 NI Ni NI <br /> MW-3C 1st qtr-1993 0.011 <0.010 <0.0050 <br /> ! 2nd qtr-1993 0.011 0.015 <br /> <0A050 <br /> 3rd qtr-1993 0.01 [0.010 <br /> <0.0050 <br /> Number of Detects 3 I 0 <br /> Number of Analyses 3 3 3 <br /> Percent Detected 100 33 ND <br /> Minimum Concentration Detected 0,01 0.005 ND <br /> ! . Maximum Concentration Detected 0.011 0.015 ND <br /> Average Concentration 0.011 0.008 ND <br /> Geometric Mean Concentration` 0.011 0.002 ND <br /> Standard Deviation 0.001 0.006 ND <br /> 3rd gtr•1990 0.17 NA <0.0050 <br /> 4th qtr-1990 0.18 NA <0.0050 <br /> 1st qtr-1991 0.21 NA <0.0050 <br /> ' 2nd qtr-1991 0.21 NA <U050 <br /> 3rd qtr-1991 0.21 NA <0.0050 <br /> 4th qtr-1991 0.15 NA <0.0050 <br /> 1st qtr-1992 0.16 0.14 NA <br /> 2nd qtr-1992 0.15 0.14 NA <br /> 3rd qtr-1992 0.15 11 0.14 NA <br /> ! 4th qtr-1992 O.16(0.14) 0.029(0.11) NA <br /> MW-4A 1st qtr-1993 0.14 0-12 <br /> NA <br /> 2nd qtr-1993 0.13 0.11 NA <br /> ' 3rd qtr-1993 O.12 0,12 MNA <br /> Number of Detects 13 7Number of Analyses 13 7Percent Detected 100 100Minimum Concentration Detected 0.120 0.029Maximum Concentration Detected 0210 0.140Average Concentration 0.165 0.114Geometric Mean Concentration` O.lb2 0.103Standard Deviation 0.030 0.039 <br /> ! /utcsingltraeylriltables/ritbl5-4 5-4-5 <br /> 45 <br /> BALM! <br />