1 DR. TEAL: I think there are all kinds of very conservative 



2 assumptions in our calculations. We assumed it was all going to settle 



3 out and stay in the upper square kilometer. 



4 DR. AURAND: Would it be fair to say that dilution of the metals 



5 indicates that they are unlikely to be a biological problem, but 



6 increases probably will be detectable? 



7 DR. TEAL: No, I don't think we can say that. I think it is 



8 conceivable that it is acceptable. 



9 DR. RAY: At 500 meters away, I wouldn't want to bet that you'd be 



10 able to measure chromium down in that canyon over 500 meters away. I 



11 wouldn't want to bet on it. 



12 DR. BOTHNER: The other thing I think it is important to point 



13 out, as far as the biological effects of an increase of chromium in its 



14 "benign" state everyone things it may be in is probably not a concern. 



15 You can find other places on Georges Bank--rd be willing to bet 



16 if we went through this data--where you find a natural level that's a 



17 good deal higher than the 60 ppm I just quoted. That kind of gives you 



18 some perspective. 



19 DR. BUTMAN: You can put John down for references on biological 



20 effects. 



21 DR. AURAND: Since most is in insoluble form, the potential for 



22 impact is even less? 



23 DR. VALENTINE: And unavailable to organisms. 



24 DR. AURAND: Since most is in insoluble form, it is unavailable to 



25 organisms. 



26 DR. RAY: It has limited availability. 



27 DR. AURAND: They used chromium for their calculations. "Limited 



28 biological availability" is that what we said? 



29 MS. HUGHES: Limited availability. 



30 DR. AURAND: So, we dealt with muds and cuttings; is that correct? 



31 We did the metals. Is there any other? 



32 DR. VALENTINE: Can we make the statement that barium is not a 



33 problem at all? I don't think we have made that statement, but it seems 



34 from the evidence that it is not a problem. 



300 



