BENZENE    DI-
                                      1,4-DI-  CHLORO-          TRANS-     CIS
                                      CHLORO-    DI-            1,3-DI-  1,3-DI-
                                       WATER   FLUORO- NAPHTH-  CHLORO-  CHLORO-
                                      UNFLTRD  METHANE  ALENE   PROPENE  PROPENE
SITE NUMBER STATION   NUMBER  DATE      REC     TOTAL   TOTAL    TOTAL    TOTAL
                                      (UG/L)   (UG/L)   (UG/L)  (UG/L)   (UG/L)
                                      (34571)  (34668) (34696)  (34699)  (34704)
 
     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  <.100    <.192   <.500    <.268    <.184
     5       252414080333200 11-17-97  <.100    <.192   <.500    <.268    <.184
     5       252414080333200 11-18-97  <.100    <.192   <.500    <.268    <.184
     5       252414080333200 11-19-97  <.100    <.192   <.500    <.268    <.184
     5       252414080333200 11-20-97  <.100    <.192   <.500    <.268    <.184
     6       252421080333201 11-17-97  <.050    <.096   <.250    <.134    <.092
     7       252424080333801 11-16-97  <.050    <.096   <.250    <.134    <.092
     8       252428080312700 11-18-97   --       --       --      --       --
     9       252428080312801 11-14-97  <.200    <.384   <1.00    <.536    <.368
     10      252505080302501 1-28-98   <.050    <.096   <.250    <.134    <.092
     11      252523080352500 11-17-97   --       --       --      --       --
     12      252557080333700 11-19-97   --       --       --      --       --
     13      252624080302901 1-28-98   <.050    <.096   <.250    <.134    <.092
     14      252651080323001 11-13-97  <.050    <.096   <.250    <.134    <.092
     15      252700080333500 11-19-97   --       --       --      --       --
     15      252700080333500 11-20-97  <.100    <.192   <.500    <.268    <.184
     16      252716080290601 1-27-98   <.050    <.096   <.250    <.134    <.092
     17      252740080334901 11-16-97  <.050    <.096   <.250    <.134    <.092
     18      252742080334301 11-18-97  <.050    <.096   <.250    <.134    <.092
     19      252842080290501 1-27-98   <.050    <.096   <.250    <.134    <.092
     20      252845080334500 11-14-97  <.100    <.192   <.500    <.268    <.184
     20      252845080334500 11-17-97  <.100    <.192   <.500    <.268    <.184
     20      252845080334500 11-18-97  <.100    <.192   <.500    <.268    <.184
     20      252845080334500 11-19-97  <.100    <.192   <.500    <.268    <.184
     20      252845080334500 11-20-97  <.100    <.192   <.500    <.268    <.184
     21      252850080331801 11-17-97  <.050    <.096   <.250    <.134    <.092
     22      252851080323300 11-19-97   --       --       --      --       --
     22      252851080323300 11-20-97  <.100    <.192   <.500    <.268    <.184
     23      252940080261204 1-29-98   <.050    <.096   <.250    <.134    <.092
     24      252951080251201 1-29-98   <.050    <.096   <.250    <.134    <.092