49. 

 MR. PIPER: Yes. 



DR. THEIS: Tanks collect most of the sludge, so the experi- 

 ence you may have with these cribs would not be a very good indica- 

 tion of what might happen in the wells. The Hanford low level wastes 

 are not typical of the wastes we are talking about. 



DR. J. W. WATKINS: In the petroleum industry we have a 

 half-million barrels of brine to dispose of this year. There are dis- 

 posal wells in western states taking thousands of barrels per day 

 without treatment at all. So it depends on the location-- whether 

 there is permeable rock or not. 



DR. DENISON: I think in east Texas they put back one barrel 

 of water for each barrel of oil they take out. It all goes by gravity. 

 No fracturing is needed. 



DR. HUBBERT: This still depends on the fluid not blocking the 

 holes in the sand. 



DR. DENISON: You have to be sure not to let the algae grow; 

 they will block it up quickly. But keep the water clean and keep the 

 air from it and it goes back in any quantity you want to put in. 



DR. HUBBERT: Another thing, Dr. Culler mentioned colloidal 

 solids suspended in this material. That is not tolerable if you are 

 going to inject it in the ground. It has to go in as a pure liquid, no 

 solids . 



CHAIRMAN HESS: Are there any other questions: 



We have two more speakers that we would like to get in in the 

 next forty minutes. 



MR. F. A. HEDMAN: I would like to get a comment from Dr. 

 Lieberman. From the distribution of Hanford wastes, is it likely to 

 be practical to put up a plant that will generate high level wastes at 

 some place 'where you would have to transport the waste? 



DR. LIEBERMAN: I think it is very likely that problems would 

 confront us , and the feasibility of putting the waste in the ground might 

 well determine the type of process we would plan to use. 



