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Lower Columbia River Contaminants Study
Entry ID: BESTsed23

Abstract: These data represent the USACOE, Portland District's sediment quality
data with regard to dioxins and furans in sediment samples from areas
that have already been dredged and areas that may potentially be
dredged (Siipola 1994). Sample locations include areas where there is
potential dioxin and furan sediment contamination and/or where
previous sampling has indicated the presence of similar ... View entire text
Geographic Coverage
Spatial coordinates   
  N: 47.0   S: 45.0   E: -118.0   W: -120.0

Data Set Citation
Dataset Originator/Creator: Mark Siipola, U.S. Army Corps of Engineers
Dataset Title: Lower Columbia River Contaminants Study
Dataset Release Date: unknown
Dataset Release Place: Seattle, Washington
Dataset Publisher: U.S. Environmental Protection Agency, Region 10
Data Presentation Form: database
Temporal Coverage
Start Date: 1990-05-01
Stop Date: 1990-05-31

Start Date: 1991-09-01
Stop Date: 1991-09-30
Quality Laboratory method blanks and internal standards were prepared and
processed along with each extraction batch as part of the quality
assurance/quality control procedure. The only qualifier code used in
the data set provided was "U" - Not detected. Value given is the
detection limit. Users of these data should be reminded that targeted
sample areas consisted of areas where dioxins and furans were expected
to be present. All data entered in the database were reviewed for
data entry errors. All detected errors were corrected.
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: (503) 326-6463
Email: Mark.D.Siipola at
Contact Address:
U.S. Army Corps of Engineers
City: Portland
Province or State: Oregon
Country: USA
Siipola, M.D. 17 August 1994. Personal Communication (data package
containing sediment dioxin data submitted to Mr. Curtis DeGasperi,
Tetra Tech, Inc., Redmond, WA). U.S. Army Corps of Engineers,
Portland District, Portland, OR. Data for 1989 U.S. Government
Moorings study - Willamette River. Analyses of Columbia
River/Willamette River sediment samples - 1990 reconnaissance study.
Various locations in Bonneville Pool - 1991. Mouth of Columbia River
- 1992.

Stockton, S.L. 29 January 1992. Personal Communication (transmittal
of Columbia River and Willamette River sediment dioxin/furan data).
Chief, Planning and Engineering Division, U.S. Army Corps of
Engineers, Portland, OR.
Extended Metadata Properties
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Creation and Review Dates
DIF Creation Date: 2001-05-27
Last DIF Revision Date: 2017-08-23
Future DIF Review Date: 2002-05-27