Cook Plant preoperational studies 1970 / John C. Ayers ... [et al.].

The developmental and testing programs have been carried out under a
grant from American Electric Power Service Corporation directly to Prof.
Whipple. The underwater gamma probe was envisioned for use in pre- and postoperational surveys of the Cook Plant area.
The development and testing have been completed, and one survey of the
Cook Plant area has been carried out. A final report to AEPSC was submitted
in October 1970.
Since the final report, Dr. Plato and Mr. Gelskey have refined the results
and prepared a paper for presentation to the Annual Meeting of the Instrument
Society of America in New York City, 17 May 1971. Their paper is here presented in its entirety, with the permission of the authors (Appendix A).
The paper indicates the presence of two "hot spots" and one "cool spot"
in the lake sediments near the Cook Plant site. We believe that these spots
should be completely defined during the preoperational surveys.
Not knowing of these results at the time, our present contract with
AEPSC does not contain funds for work with the gamma probe. We have encouraged
Dr. Plato and Mr. Gelskey to apply to AEPSC for the necessary limited funds.
E.2 The Most Sensitive Organism for Concentration of Radwastes
A doctoral thesis by Charles C. Kidd, which constitutes Part VI of our
report series, shows that the amphipod, Pontoporeia affinis, is a substantial
concentrator of manganese-54 and zinc-65. Whether there are other or more
active concentrators of radioisotopes among the benthic community has yet to
be determined. Kidd's work with Pontoporeia was influenced by: 1) this
organism is an important fish-food; and 2) techniques for the laboratory maintenance of benthos had, at that time, extended only to this organism. Since
Kidd's work began it has been shown that the same maintenance technique suffices
for the deep-water amphipod, Mysis reZicta, also a fish-food of some importance.

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