CHLOR-          DI-    PARA-
                                     PYRIFOS LINDANE ELDRIN THION,
                                     DIS-    DIS-    DIS-   DIS-
SITE NUMBER STATION   NUMBER DATE    SOLVED  SOLVED  SOLVED SOLVED
                                     (UG/L)  (UG/L)  (UG/L) (UG/L)
                                     (38933) (39341) (39381)(39542)

     1          02290769     11-21-97 <.0040  <.004   <.001  <.004
     2       252100080340000 11-20-97   --      --     --     --
     3       252144080313800 11-19-97 <.0040  <.004   <.001  <.004
     4       252213080313100 11-21-97 <.0040  <.004   <.001  <.004
     5       252414080333200 11-16-97 .0043   <.004   <.001  <.004
     5       252414080333200 11-17-97 .0052   <.004   <.001  <.004
     5       252414080333200 11-18-97 .0089   <.004   <.001  <.004
     5       252414080333200 11-19-97 .0087   <.004   <.001  <.004
     5       252414080333200 11-20-97 .0126   <.004   <.001  <.004
     6       252421080333201 11-17-97 <.0040  <.004   <.001  <.004
     7       252424080333801 11-16-97 <.0040  <.004   <.001  <.004
     8       252428080312700 11-18-97 <.0040  <.004   <.001  <.004
     9       252428080312801 11-14-97 <.0040  <.004   <.001  <.004
     10      252505080302501 1-28-98 <.0040  <.004   E.002  <.004
     11      252523080352500 11-17-97 .0093   <.004   <.001  <.004
     12      252557080333700 11-19-97 .0062   <.004   <.001  <.004
     13      252624080302901 1-28-98 <.0040  <.004   E.002  <.004
     14      252651080323001 11-13-97 <.0040  <.004   .006   <.004
     15      252700080333500 11-19-97 .0142   <.004   <.001  <.004
     15      252700080333500 11-20-97 .0052   <.004   <.001  <.004
     16      252716080290601 1-27-98 <.0040  <.004   <.001  <.004
     17      252740080334901 11-16-97 <.0040  <.004   <.001  <.004
     18      252742080334301 11-18-97 <.0040  <.004   <.001  <.004
     19      252842080290501 1-27-98 <.0040  <.004   <.001  <.004
     20      252845080334500 11-14-97 .0057   <.004   <.001  <.004
     20      252845080334500 11-17-97 <.0040  <.004   <.001  <.004
     20      252845080334500 11-18-97 <.0040  <.004   <.001  <.004
     20      252845080334500 11-19-97 .0046   <.004   <.001  <.004
     20      252845080334500 11-20-97 <.0040  <.004   <.001  <.004
     21      252850080331801 11-17-97 <.0040  <.004   <.001  <.004
     22      252851080323300 11-19-97 <.0040  <.004   <.001  <.004
     22      252851080323300 11-20-97 <.0040  <.004   <.001  <.004
     23      252940080261204 1-29-98 <.0040  <.004   <.001  <.004
     24      252951080251201 1-29-98 <.0040  <.004   <.001  <.004