5- 



3- 





o 



z 



o 



UJ 

 >4 



UJ - 



cc 



FLOW THROUGH 

 2 WEEKS 

 SITE 7 



■ I 



2- 



FLOW THROUGH 

 6 WEEKS 

 SITE 7 



ll 



- 3 



FLOW THROUGH 

 2 WEEKS 

 SITE 6 



ll 



4 WEEKS 

 SITE 6 



ll 



II 1213 14 15I6WPRI8PHI9 20 21 22232425262/28 



M 1? 1.1 14 IS lb i; PR 18 PH 19 20 21 22 23 24 25 26 2/ 28 



FIGURE 4. (Lett column) Changes in the reLative concent rations of aliphatic 

 hydrocarbons in f low-through experiment with sediment from site 7, 



FIGURE 5. (Right column) Changes in the relative concentrations of aliphatic 

 hydrocarbons in f Low- through experiment with sediment from site 6. 



21 



