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TABLE 5-4 (continued) <br /> SUMMARY GROUND WATER SAMPLE ANALYTICAL RESULTS <br /> TOTAL CHROMIUM, Cr*', AND TOTAL LEAD <br /> � cul ���� •;#` d. :.''. .' ' <br /> 3rd qtr-1990 NJ NJ NJ <br /> 41h qtr-1990 0,28 NA 0.094 <br /> Ist qtr-1991 0.022 NA 0.015 <br /> 2nd qtr-1991 0.0029 NA <0.0050 <br /> 3rd qtr-1991 0.0022 NA <0.0050 <br /> 4th qtr-1991 0.031 NA <0.0050 <br /> 1st qtr-1992 0.0021 <0,010 <0.0050 <br /> 2nd qtr-1992 0.0016 <0-010 <0,0050 <br /> 3rd qtr-1992 0.0013 <0.010 <0.0050 <br /> 4th qtr-1992 0.0014 <0.010 <0.0050 <br /> MW-9A Ist.qtr-1993 0.0028 <0.010 <0.0050 <br /> 2nd qtr-1993 0.0019 <0.010 <0.0050 <br /> 3rd qtr-1993 0.0016 <0.010 <0.0051) <br /> Number of Detects 12 0 2 <br /> Number of Analyses 12 7 12 <br /> Percent Detected 100 ND 17 <br /> Minimum Concentration Detected 0.001 ND 0.0025 <br /> Maximum Concentration Detected 0.290 ND 0.094 <br /> Average Concentration 0.029 ND 0.011 <br /> Geometric Mean Concentration' 0.004 ND 0.004 <br /> Standard Deviation 0.080 ND O.D26 <br /> 3rd qv-1990 NJ NI Ni <br /> 4th qtr-IM NJ NJ NJ <br /> Ist qtr-1991 0.04 NA 0.016 <br /> 2nd qtr-1991 0.001 NA <0.0050 <br /> 3rd qtr-1991 0.0029 NA <0,0050 <br /> 4th qts-1991 <0,0020 NA <0.0050 <br /> Is(qtr-1992 0.0014 <0.010 NA <br /> 2nd qtr-1992 0.()012 <0,010 NA <br /> 3rd qtr-1992 <0.0010 <0.010 NA <br /> 4th qtr-1992 <0.0()10(<0.0010) <0.010(<0.010) <0.0050(<0.0050) <br /> MW-10A Ist qtr-1993 <0.0010 <0.010 NA <br /> 2nd qtr-1993 0,0016 <0.010 NA <br /> 3rd.qtr-1993 0.001 <0.010 NA <br /> Number of Detects 7 0 1 <br /> Number of Analyses 11 7 5 <br /> Percent Detected 64 ND 20 <br /> Minimum Concentration Detected 0.001 ND 0.0025 <br /> Maximum Concentration Detected 0.040 ND 0.016 <br /> Average Concentration 0.005 ND 0.005 <br /> Geometric Mean Concentration' 0.001 ND 0.004 <br /> Standard Deviation 0.012 ND 0.006 <br /> /u/csing/imcy/rittables/ritbl5-4 5-4-8 <br />