Columbia River Dioxin Study
Entry ID: usepa_best03

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Summary
Abstract: The Columbia River and segments of the Snake and Willamette Rivers are
currently water quality limited due to the presence of elevated levels
of 2,3,7,8-TCDD. As a result, U.S. EPA Region 10, established a Total
Maximum Daily Load (TMDL) of 6 mg of 2,3,7,8-TCDD/day based upon state
water quality standards applicable to the Columbia River basin and the
volume of water in the Columbia River. The ... View entire text
Related URL
Description: Metadata in the Biological Data Profile format.
Geographic Coverage
Spatial coordinates   
  N: 46.0   S: 45.5   E: -120.5   W: -122.5

Data Set Citation
Dataset Originator/Creator: Dana Davoli, U.S. Environmental Protection Agency
Dataset Title: Columbia River Dioxin Study
Dataset Release Place: Seattle, Washington
Dataset Publisher: U.S. Environmental Protection Agency
Online Resource: http://www.epa.gov/r10earth/data/crbdata.html?dioxin+#first_hit
Temporal Coverage
Start Date: 1994-08-01
Stop Date: 1994-09-01
Quality Internal standards, laboratory duplicates, matrix spikes, and method
blanks were used for data evaluation. Preliminary data validation
indicates that some of the samples displayed interference with
2,3,7,8-TCDF measurements. Therefore, the analysis for some of the
samples of 2,3,7,8-TCDF and total TCDF were rejected (this is
preliminary ... View entire text
Access Constraints None
Use Constraints Users of these data should be cautioned that a preliminary data
validation performed by the U.S. EPA indicates that some of the data
for 2,3,7,8-TCDF should be qualified as unusable. These data have
been qualified using an "R" in the database.
Data Set Progress
COMPLETE
Data Center
Pacific Northwest, U.S. Environmental Protection Agency Supplemental Info
Data Center URL: http://www.epa.gov/region10/

Data Center Personnel
Name: DANA DAVOLI
Phone: (206) 553-2135
Fax: (206) 553-0119
Email: davoli.dana at epa.gov
Contact Address:
U.S. Environmental Protection Agency, Region 10
0ea095, 1200 6th Avenue
City: Seattle
Province or State: Washington
Postal Code: 98101
Country: USA
Personnel
Role: TECHNICAL CONTACT
Phone: (206) 553-2135
Fax: (206) 553-0119
Email: davoli.dana at epa.gov
Contact Address:
U.S. Environmental Protection Agency, Region 10
0ea095, 1200 6th Avenue
City: Seattle
Province or State: Washington
Postal Code: 98101
Country: USA
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Publications/References
Davoli, D. 29 August 1994. Personal Communication (data package sent
to Steve Ellis, Tetra Tech, Inc., Redmond, WA). Selected fish tissue
contaminant data from the U.S. EPA Columbia River toxic substances
study. U.S. Environmental Protection Agency, Region 10, Seattle, WA.
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2001-02-23
Last DIF Revision Date: 2012-12-12
Future DIF Review Date: 2002-02-23
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