1 DR. TEAL: I'm saying that compared to the fines on the slope, 



2 just what is in the general area, he finds about two to two-and-a-half 



3 • times as much of this particle reactive substance in the canyons, so you 



4 might expect, let's say, two-and-a-half times as much of the heavy 



5 metals from the drilling activities, also a concentration factor of two 



6 and a half. 



7 DR. BUTMAN: I wouldn't say that. That's given the same dilute 



8 source as these sediments--this area concentrates them by a factor of 



9 two and a half. 



10 DR. TEAL: Yes. The stuff that is spread out into the water, I 



11 would say its first approximation would be a pretty dilute source. 



12 Let's say because it's only 500 meters away, it's 5 times. 



13 The question, then, is: Is five times what you find in the other 



14 drill rigs monitoring the studies enough to be of any significance? 



15 That's the question I want to ask; however, whatever concentration 



16 factor you put on it--and it seems to me we ought to do something based 



17 on that, and set some limits around it. 



18 I say, okay, let's use two times the concentration factor we find, 



19 because you are saying this source is more concentrated than the source 



20 that he's looking at, which is spread all over the whole area. 



21 DR. BOTHNER: Let me say something about that. First of all, the 



22 Plutonium and lead-210 data suggests something about the fate of 



23 dissolved metals that may be introduced from whatever source. It 



24 doesn't say anything about the particulates. 



25 The other thing I want to get at is that, as I think about it, I 



26 love these tape recorders because it gets your first thoughts, but you 



27 are sometimes wrong. I am going to reverse myself and say that I agree 



28 with Brad, that what we are talking about here, in addition to the 



29 dissolved phase, is the solids which, in fact, may end up more in the 



30 canyon. 



31 Therefore, whatever concentration the original drilling might, in 



32 solid phase, occur at is the concern to begin with; however that is 



33 diluted when it gets into the canyon is the issue that you are asking 



34 and we don't know the answer to that yet. 



289 



