Olympia, Washington PCB and Pesticides Study

In June 1990, as part of Ecology's investigation of contaminants in
Lake Roosevelt, a series of sediment and bottom fish samples were
collected from Lake Roosevelt and vicinity for analysis of PCDDs and
PCDFs. The impetus for this survey was the need to better understand
the spatial distribution of these compounds as a result of their
discharge by the Celgar bleached kraft pulp mill in Castlegar, B.B.,
approximately 30 river miles above the international boundary. The
results of these and other PCDD/PCDF analyses on Lake Roosevelt
samples have been reported elsewhere (Johnson et al., 1991a, b,c).
This report contains analysis of sediment and bottom fish samples for
only PCB and DDE compounds (Johnson 1991).

Six sites were studied in Lake Roosevelt between the international border and
Grand Coulee Dam, one site each in the Spokane River and Rufus Woods
Lake.

After recording the length and weight of each specimen, they were
individually wrapped in aluminum foil, placed in polyethylene bags and
stored on ice. The fish were analyzed as composites of five whole
fish per sample.

The metadata for this data was taken from the U.S. Environmental
Protection Agency's Columbia River Basin: Biota Database Abstracts.