METHYL
                                       HEXA-   ACRY-   PREH-    ISO-   BROMO-
                                      CHLORO-   LATE   NITENE  DURENE  ETHENE
                                        BUT-   WATER   WATER   WATER   WATER
                                       ADIENE UNFLTRD UNFLTRD UNFLTRD UNFLTRD
 SITE NUMBER STATION   NUMBER   DATE   TOTAL  RECOVER RECOVER RECOVER RECOVER
                                       (UG/L)  (UG/L)  (UG/L)  (UG/L)  (UG/L)
                                      (39702) (49991) (49999) (50000) (50002)

      1          02290769     11-21-97   --      --      --      --      --
      2       252100080340000 11-20-97   --      --      --      --      --
      3       252144080313800 11-19-97   --      --      --      --      --
      4       252213080313100 11-21-97   --      --      --      --      --
      5       252414080333200 11-16-97 <.284   <1.22   <.460   <.480   <.200
      5       252414080333200 11-17-97 <.284   <1.22   <.460   <.480   <.200
      5       252414080333200 11-18-97 <.284   <1.22   <.460   <.480   <.200
      5       252414080333200 11-19-97 <.284   <1.22   <.460   <.480   <.200
      5       252414080333200 11-20-97 <.284   <1.22   <.460   <.480   <.200
      6       252421080333201 11-17-97 <.142   <.612   <.230   <.240   <.100
      7       252424080333801 11-16-97 <.142   <.612   <.230   <.240   <.100
      8       252428080312700 11-18-97   --      --      --      --      --
      9       252428080312801 11-14-97 <.568   <2.45   <.920   <.960   <.400
     10       252505080302501 1-28-98  <.142   <.612   <.230   <.240   <.100
     11       252523080352500 11-17-97   --      --      --      --      --
     12       252557080333700 11-19-97   --      --      --      --      --
     13       252624080302901 1-28-98  <.142   <.612   <.230   <.240   <.100
     14       252651080323001 11-13-97 <.142   <.612   <.230   <.240   <.100
     15       252700080333500 11-19-97   --      --      --      --      --
     15       252700080333500 11-20-97 <.284   <1.22   <.460   <.480   <.200
     16       252716080290601 1-27-98  <.142   <.612   <.230   <.240   <.100
     17       252740080334901 11-16-97 <.142   <.612   <.230   <.240   <.100
     18       252742080334301 11-18-97 <.142   <.612   <.230   <.240   <.100
     19       252842080290501 1-27-98  <.142   <.612   <.230   <.240   <.100
     20       252845080334500 11-14-97 <.284   <1.22   <.460   <.480   <.200
     20       252845080334500 11-17-97 <.284   <1.22   <.460   <.480   <.200
     20       252845080334500 11-18-97 <.284   <1.22   <.460   <.480   <.200
     20       252845080334500 11-19-97 <.284   <1.22   <.460   <.480   <.200
     20       252845080334500 11-20-97 <.284   <1.22   <.460   <.480   <.200
     21       252850080331801 11-17-97 <.142   <.612   <.230   <.240   <.100
     22       252851080323300 11-19-97   --      --      --      --      --
     22       252851080323300 11-20-97 <.284   <1.22   <.460   <.480   <.200
     23       252940080261204 1-29-98  <.142   <.612   <.230   <.240   <.100
     24       252951080251201 1-29-98  <.142   <.612   <.230   <.240   <.100