2,6-DI-   TRI-   ETHAL-
                                        METRI-  ETHYL   FLUR-   FLUR-  PHORATE
                                        BUZIN  ANILINE   ALIN    ALIN   WATER
                                        SENCOR WAT FLT WAT FLT WAT FLT  FLTRD
                                        WATER   0.7 U   0.7 U   0.7 U   0.7 U
 SITE NUMBER  STATION   NUMBER   DATE  DISSOLV GF, REC GF, REC GF, REC GF, REC
                                        (UG/L)  (UG/L)  (UG/L)  (UG/L)  (UG/L)
                                       (82630) (82660) (82661) (82663) (82664)

      1           02290769     11-21-97 <.004   <.0030  <.0020  <.0040  <.0020
      2        252100080340000 11-20-97   --      --      --      --      --
      3        252144080313800 11-19-97 <.004   <.0030  <.0020  <.0040  <.0020
      4        252213080313100 11-21-97 <.004   <.0030  <.0020  <.0040  <.0020
      5        252414080333200 11-16-97 <.004   <.0030  <.0020  <.0040  <.0020
      5        252414080333200 11-17-97 <.004   <.0030  <.0020  <.0040  <.0020
      5        252414080333200 11-18-97 <.004   <.0030  <.0020  <.0040  <.0020
      5        252414080333200 11-19-97 <.004   E.0022  <.0020  <.0040  <.0020
      5        252414080333200 11-20-97 <.004   E.0016  <.0020  <.0040  <.0020
      6        252421080333201 11-17-97 <.004   <.0030  <.0020  <.0040  <.0020
      7        252424080333801 11-16-97 <.004   <.0030  <.0020  <.0040  <.0020
      8        252428080312700 11-18-97 <.004   <.0030  <.0020  <.0040  <.0020
      9        252428080312801 11-14-97 <.004   <.0030  <.0020  <.0040  <.0020
      10       252505080302501 1-28-98  0.105   <.0030  <.0020  <.0040  <.0020
      11       252523080352500 11-17-97 <.004   <.0030  <.0020  <.0040  <.0020
      12       252557080333700 11-19-97 <.004   <.0030  <.0020  <.0040  <.0020
      13       252624080302901 1-28-98  0.005   <.0030  <.0020  <.0040  <.0020
      14       252651080323001 11-13-97  .106   <.0030  <.0020  <.0040  <.0020
      15       252700080333500 11-19-97 <.004   E.0013  <.0020  <.0040  <.0020
      15       252700080333500 11-20-97 <.004   E.0018  <.0020  <.0040  <.0020
      16       252716080290601 1-27-98  0.017   <.0030  <.0020  <.0040  <.0020
      17       252740080334901 11-16-97 <.004   <.0030  <.0020  <.0040  <.0020
      18       252742080334301 11-18-97 <.004   <.0030  <.0020  <.0040  <.0020
      19       252842080290501 1-27-98  <.004   <.0030  <.0020  <.0040  <.0020
      20       252845080334500 11-14-97 <.004   <.0030  <.0020  <.0040  <.0020
      20       252845080334500 11-17-97 <.004   <.0030  <.0020  <.0040  <.0020
      20       252845080334500 11-18-97 <.004   <.0030  <.0020  <.0040  <.0020
      20       252845080334500 11-19-97 <.004   <.0030  <.0020  <.0040  <.0020
      20       252845080334500 11-20-97 <.004   <.0030  <.0020  <.0040  <.0020
      21       252850080331801 11-17-97 <.004   <.0030  <.0020  <.0040  <.0020
      22       252851080323300 11-19-97 <.004   <.0030  <.0020  <.0040  <.0020
      22       252851080323300 11-20-97 <.004   <.0030  <.0020  <.0040  <.0020
      23       252940080261204 1-29-98  <.004   <.0030  <.0020  <.0040  <.0020
      24       252951080251201 1-29-98  <.004   <.0030  <.0020  <.0040  <.0020