W. J. Bair Octobe r 13, 1978 Page 2 as to how the potential ills so released can be controlled. In this particular case regarding subsurface contamination, I agree that the OPLAN is not adequate to meet the situation and agree with the draft recommendations regarding Boken and Enjebi. Enjebi Experimental Farm I believe we should delete any mention of the Enjebi farm in this letter to Hal Hollister since no one familiar with the design and operation of the farm was present at our Denver meeting to answer questions. OQur concerns with regard to numbers of samples, the feasi- bility of adequate maintenance of the farm, and the overal] integration of the farms operation into the radiological hazard assessment for the Enewetak Atoll should be discussed with those familiar and/or responsible for the farm's design and operation before we raise the issue with Hal Hollister. Once we know the facts then we could consider whether the Situation warrants action by the Advisory Group. It's clear that we need a meeting in the near future with Bill Robison, Bob Watters, and perhaps others who are familiar with the objectives and operation of the farm. Plowing Experiment a) I suggest we include Pu and Am along with 90c), and 137¢¢ as being possibly more available to roots as a result of plowing. b) Since there appears to be no plans for Sr and Cs uptake studies on plowed and unplowed areas, our 2nd sentence from the end implies the Advisory Group will never address the issue of plowing in the future. Is this what we want to say? I doubt it. I think we should recommend that such uptake studies be done on the plowed-unplowed plots of Enjebi, preferably as part of an expanded effort at the Enjebi experimental farm. If logistics prevent the successful supervision of this site in the future, then other more accessible areas, perhaps on Eneu Island, should be considered for plowing and uptake experiments.