The unforseen occurrence of significant concentrations of Co-58 and Cs-1 37 in a quiescent backwater of Dardanelle Reservoir provided an opportunity to observe the equilibrium distribution of Cs-1 37 between solution and suspended solids. This equilibrium has not been observed in other areas of the reservoir because small amounts of this nuclide are regularly injected into the lake by the AP&L Nuclear I facility. The systematics of the Co-58 concentration lead to the conclusion that significant amounts of these two nuclides had been injected into the sampling area from a source unknown.
Chittenden, David M. II
"Anomalous Concentrations of Co-58 and Cs-137 in Dardanelle Reservoir,"
Journal of the Arkansas Academy of Science: Vol. 40
, Article 8.
Available at: http://scholarworks.uark.edu/jaas/vol40/iss1/8