ETHER    ETHER   2BUTENE  METHAC-  CARBON 
                                          TERT-    TERT-   TRANS-1  RYLATE     DI-  
                                          BUTYL   PENTYL    4-DI-    ETHYL-  SULFIDE
                                          ETHYL   METHYL   CHLORO    WATER    WATER 
                                         UNFLTRD  UNFLTRD  UNFLTRD  UNFLTRD   WHOLE 
WELL NUMBER   STATION   NUMBER   DATE    RECOVER  RECOVER  RECOVER  RECOVER   TOTAL 
                                         (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L) 
                                         (50004)  (50005)  (73547)  (73570)  (77041)
             
     1       260056080144501   03-12-97   <.200    <.200   <10.0     <2.00    <.100 
     2       260111080171201   11-25-96   <.100    <.100    <5.00    <1.00    E.010 
     3       260113080173601   12-18-96   <.400    <.400   <20.0     <4.00    <.200 
     4       260113080173602   12-18-96   <.400    <.400   <20.0     <4.00    <.200 
     5       260202080230702   03-12-97   <.400    <.400   <20.0     <4.00    <.200 
     6       260243080181401   11-19-96   <.100    <.100    <5.00    <1.00    <.050 
     7       260305080184201   11-18-96   <.100    <.100    <5.00    <1.00    E.050 
     8       260654080153401   11-26-96   <.100    <.100    <5.00    <1.00    E.030 
     9       260708080223501   02-11-97   <.200    <.200   <10.0     <2.00    E.006 
    10       260709080222301   02-12-97   <.400    <.400   <20.0     <4.00    <.200 
    11       260710080212101   03-10-97   <.400    <.400   <20.0     <4.00    E.060 
    12       260712080151001   12-11-96   <.200    <.200   <10.0     <2.00    <.100 
    13       260739080162501   11-26-96   <.100    <.100    <5.00    <1.00    <.050 
    14       260742080145401   12-12-96   <.200    <.200   <10.0     <2.00    E.040 
    15       260755080191701   02-13-97   <.400    <.400   <20.0     <4.00    <.200 
    16       260822080163001   11-19-96   <.100    <.100    <5.00    <1.00    E.009 
    17       260825080144402   03-11-97   <.200    <.200   <10.0     <2.00    <.100 
    18       261019080154301   04-01-97   <.200    <.200   <10.0     <2.00    <.100 
    19       261032080154701   04-01-97   <.200    <.200   <10.0     <2.00    <.100 
    20       261153080151601   12-17-96   <.400    <.400   <20.0     <4.00    <.200 
    21       261157080152001   12-17-96   <.400    <.400   <20.0     <4.00    <.200 
    22       261246080161701   11-21-96   <.100    <.100    <5.00    <1.00    E.020 
    23       261304080170801   11-20-96   <.100    <.100    <5.00    <1.00    E.030 
    24       261416080141601   12-11-96   <.400    <.400   <20.0     <4.00    <.200 
    25       261416080154001   11-21-96   <.100    <.100    <5.00    <1.00    E.050 
    26       261525080165101   12-10-96   <.200    <.200   <10.0     <2.00    <.100 
    27       261538080141601   12-16-96   <.200    <.200   <10.0     <2.00    E.020 
    28       261554080164601   11-20-96   <.100    <.100    <5.00    <1.00     .120 
    29       261554080164602   11-20-96   <.100    <.100    <5.00    <1.00    E.030 
    30       261558080153101   03-31-97   <.200    <.200   <10.0     <2.00    <.100 
    31       261653080144601   03-13-97   <.100    <.100    <5.00    <1.00    <.050 
    32       261714080130101   12-10-96   <.400    <.400   <20.0     <4.00    <.200