Record Display for the EPA National Library Catalog


Main Title Plutonium Levels in the Sediment of Area Impoundments Environs of the Rocky Flats Plutonium Plant - Colorado.
Author Lammering., Milton W. ;
CORP Author Environmental Protection Agency, Denver, Colo. Technical Support Branch.
Year Published 1975
Report Number EPA/908/2-75/001 ;SA/TIB-29;
Stock Number PB-255 572
Additional Subjects Reservoirs ; Sedimentation ; Plutonium isotopes ; Colorado ; Liquids ; Waste disposal ; Nuclear fuel reprocessing ; Samples ; Tables(Data) ; Great Western Reservoir ; Standley Lake ; Cherry Creek Reservoir ; Marston Lake ; Ralston Reservoir ; Rocky Flats Plant
Library Call Number Additional Info Location Last
NTIS  PB-255 572 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 51p
Plutonium concentrations in the bed sediment of reservoirs (Great Western Reservoir, Standley Lake, Cherry Creek Reservoir, Marston Lake, and Ralston Reservoir) in the environs of the Atomic Energy Commission Rocky Flats Plant were determined by dredge and core sampling. Great Western Reservoir and Standley Lake were sampled during October, 1973; the other three impoundments during April, 1974. The baseline level of plutonium-239 in bed sediment attributable to worldwide fallout was found to be < or = 0.10 pCi/gram (dry weight). Correspondingly, the maximum concentrations in the top layer of sediment in Great Western Reservoir were approximately 4.0 pCi/gram (dry weight). The thickness of the layer of plutonium-contaminated sediment in the reservoir was 5 cm or more at most sampling stations. Through 1973, Great Western Reservoir received liquid wastes (plutonium-bearing) from the Rocky Flats Plant via the tributary stream, Walnut Creek.