ARCHIVED REPORTS BIOTREATMENT BEDS POST REMEDIATION INVESTIGATION REPORT

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TABLE 5-3 (continued) SUMMARY GROUND WATER SAMPLE ANALYTICAL RESULTS AROMATIC VOLATILE ORGANICS rama.w.... vlat�le ?rg me"i gli) Mo>uh>3e5ng: mnCi a '..... o otal r#�r k�(e ent �3en 1bue�ate kthJlnxne 3rd qtr-1990 NI NI NI NI 4th qtr-1990 NI NI NI NI 1st qtr-1991 NI NI NI NI 2ndtr-1991 NI q NI NI NI 3rd qtr-1991 NI NI NI NI 4th qtr-1991 NI NI NI NI 1st qtr-1992 NI NI NI NI 2nd qtr-1992 NI NI NI NI 3rd qtr-1992 NI NI NI NI 4th qtr-1992 <0.50 0.63 <0.50 <1.0 MW-17B 1st qtr-1993 <0.50 <0.50 <0.50 <1.0 ti 2nd qtr-1993 <0.50 <0.50 <0.50 <1.0 3rdtr-1993 q <0.50 <0.50 <0.50 <1.0 Number of Detects 0 1 0 0 Number of Analyses 4 4 4 4 Percent Detected ND 25 ND ND Minimum Concentration Detected ND 0.25 ND ND Maximum Concentration Detected ND 0.63 ND ND Average Concentration ND 0.35 ND ND Geometric Mean Concentration ND 0.32 ND ND 1.06..... Standard Deviation ND 0.19 ND ND ' 3rd qtr-1990 NI NI NI NI 4th qtr-1990 NI NI NI NI 1st qtr-1991 NI NI NI NI 2ndtr-1991 q NI NJ NI NI 3rdtr-1991 q NI NI NI NI 4th qtr-1991 <0.50 <0.50 <0.50 <1.0 1st qtr-1992 <0.50 <0.50 <0.50 <1.0 2nd qtr-1992 <0.50 <0.50 <0.50 <1.0 3rd qtr-1992 <0.50 <0.50 <0.50 <1.0 4th qtr-1992 <0.50 <0.50 <0.50 <1.0 MW-18A Ist qtr-1993 <0.50 <0.50 <0.50 <1.0 2nd qtr-1993 <0.50 <0.50 <0.50 <1.0 3rd qtr-1993 <0.50 <0.50 <0.50 <1.0 Number of Detects 0 0 0 0 Number of Analyses 8 8 8 8 Percent Detected ND ND ND ND Minimum Concentration Detected ND ND ND ND Maximum Concentration Detected ND ND ND ND Average Concentration ND ND ND ND • Geometric Mean Concentration ND ND ND ND <0.50 Standard Deviation ND ND ND ND /u/cling/tracy/ri/tables/tbl5-3 5-3-16