ILLUSTRATIONS 
Page 
Figure 1. Map showing regional sampling stations and site-specific 
sampling stations around regional station 5------------- 5} 
2-18. Graphs showing: 
2. Mean grain size of samples collected during years l, 
2, and 3-------------------------------------------- 22 
3. Percent silt plus clay in samples collected at each 
regional station during years 1, 2, and 3----------- 24 
4. Concentrations of barium in bulk sediment on different 
sampling occasions---------------------------------- 27 
5. Concentrations of barium and chromium in bulk sediment 
on different sampling occasions near the drill site 
at block 410---------------------------------------- 28 
6. Concentrations of barium and chromium in bulk sediment 
on different sampling occasions near the drill site 
at block 312---------------------------------------- 31 
7. Concentrations of barium and chromium in the fine 
fraction on different sampling occasions near the 
drill site at block 410-—--------------------------- 32 
8. Concentrations of barium and chromium in the fine 
fraction on different sampling occasions near the 
drill site at block 312----------------------------- 34 
9. Concentrations of barium and the ratio of barium to 
aluminum in the fine fraction on different sampling 
occasions at stations 2, 3, 10, and 12-------------- 36 
