METHYL   TETRA-    TRI-   
                                                  METHYL-    ENE    CHLORO-  CHLORO- 
                                         METHYL-   CHLO-    CHLO-   ETHYL-   FLUORO- 
                                         BROMIDE   RIDE     RIDE     ENE     METHANE 
WELL NUMBER   STATION   NUMBER   DATE     TOTAL    TOTAL   TOTAL     TOTAL    TOTAL  
                                         (UG/L)   (UG/L)   (UG/L)   (UG/L)   (UG/L)  
                                         (34413)  (34418)  (34423)  (34475)  (34488) 
             
     1       260056080144501   03-12-97   <.200    <.400    <.200    <.100    <.200  
     2       260111080171201   11-25-96   <.100    <.200    <.100    <.050    <.100  
     3       260113080173601   12-18-96   <.400    <.800    <.400    <.200    <.400  
     4       260113080173602   12-18-96   <.400    <.800    <.520    <.200    <.400  
     5       260202080230702   03-12-97   <.400    <.800    <.400    <.200    <.400  
     6       260243080181401   11-19-96   <.100    <.200    <.100    <.050    <.100  
     7       260305080184201   11-18-96   <.100    <.200    <.100    <.050    <.100  
     8       260654080153401   11-26-96   <.100    <.200    <.100    <.050    <.100  
     9       260708080223501   02-11-97   <.200    E.090    <.200    <.100    <.200  
    10       260709080222301   02-12-97   <.400    <.800    <.400    <.200    <.400  
    11       260710080212101   03-10-97   <.400    E.100    <.400    <.200    <.400  
    12       260712080151001   12-11-96   <.200    <.400    <.200    <.100    <.200  
    13       260739080162501   11-26-96   <.100    <.200    <.100    <.050    <.100  
    14       260742080145401   12-12-96   <.200    <.400    <.200    <.100    <.200  
    15       260755080191701   02-13-97   <.400    <.800    <.400    <.200    <.400  
    16       260822080163001   11-19-96   <.100    E.020    <.100    <.050    <.100  
    17       260825080144402   03-11-97   <.200    <.400    <.200    <.100    <.200  
    18       261019080154301   04-01-97   <.200    <.400    <.200    <.100    <.200  
    19       261032080154701   04-01-97   <.200    E.100    <.200    <.100    <.200  
    20       261153080151601   12-17-96   <.400    <.800    <.400    <.200    <.400  
    21       261157080152001   12-17-96   <.400    <.800    <.400    <.200    <.400  
    22       261246080161701   11-21-96   <.100    <.200    <.100    <.050    <.100  
    23       261304080170801   11-20-96   <.100    E.040    <.100    <.050    <.100  
    24       261416080141601   12-11-96   <.400    <.800    <.400    <.200    <.400  
    25       261416080154001   11-21-96   <.100    <.200    <.100    <.050    <.100  
    26       261525080165101   12-10-96   <.200    <.400    <.200    <.100    <.200  
    27       261538080141601   12-16-96   <.200    <.400    <.200    <.100    <.200  
    28       261554080164601   11-20-96   <.100    <.200    <.100    <.050    <.100  
    29       261554080164602   11-20-96   <.100    E.030    <.100    <.050    <.100  
    30       261558080153101   03-31-97   <.200    <.400    <.200    <.100    <.200  
    31       261653080144601   03-13-97   <.100    <.200    <.100    <.050    <.100  
    32       261714080130101   12-10-96   <.400    <.800    <.400    <.200    <.400