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Spatial Trends in TCDD/TCDF Concentrations in Sediment and Bottom Fish Collected in Lake Roosevelt (Columbia River).
Entry ID: BESTsed13

Abstract: 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 (Johnson et al. 1991a). The objective of the survey was to
evaluate the transport and distribution of these compounds throughout
the lake. The sediments and bottom fish collected during this ... View entire text
Geographic Coverage
Spatial coordinates   
  N: 47.5   S: 47.0   E: -121.5   W: -122.5

Data Set Citation
Dataset Originator/Creator: Arthur Johnson, Washington State Department of Ecology
Dataset Title: Spatial Trends in TCDD/TCDF Concentrations in Sediment and Bottom Fish Collected in Lake Roosevelt (Columbia River).
Dataset Release Date: 1991
Dataset Release Place: Seattle, Washington
Dataset Publisher: Washington State Department of Ecology
Data Presentation Form: pdf
Online Resource:
Temporal Coverage
Start Date: 1990-06-01
Stop Date: 1990-06-30
Quality EPA Duluth Laboratory (U.S. EPA 1990; U.S. EPA et al. 1990). All data
included in this report passed EPA's quality assurance criteria.

Duplicate samples were submitted to assess the precision of the
analysis. Close agreement was reached between duplicate sample
... View entire text
Access Constraints None
Use Constraints None
Data Set Progress
Data Center
Pacific Northwest, U.S. Environmental Protection Agency Supplemental Info
Data Center URL:

Data Center Personnel
Phone: (206) 553-2135
Fax: (206) 553-0119
Email: davoli.dana at
Contact Address:
U.S. Environmental Protection Agency, Region 10
0ea095, 1200 6th Avenue
City: Seattle
Province or State: Washington
Postal Code: 98101
Country: USA
Phone: (360) 407-6766
Email: rjo461 at ECY.WA.GOV
Contact Address:
Washington Department of Ecology
City: Olympia
Province or State: WA
Postal Code: 98504-7710
Country: USA
Johnson, A. 1991. Results of screen for EPA xenobiotics in sediment
and bottom fish from Lake Roosevelt (Columbia River). Memo to
Mr. Carl Nuechterlein, Washington Department of Ecology, Olympia, WA.
22 July 1991.
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Creation and Review Dates
DIF Creation Date: 2001-04-27
Last DIF Revision Date: 2017-08-24
Future DIF Review Date: 2002-04-27