EPA Region 5 Records Ctr.
341474
EPA
You're Invited!
U.S. EPA will be hosting site tours
on Tuesday, September 26 from 3 to
6 p.m. If you would like to see the
inside of the treatment building, as
well as other areas of the site, con-
tact Susan Pastor, Community
Involvement Coordinator at
1-800-621-8431 to reserve your place.
Additional Information
For further information on the
Penta Wood site, contact:
Tony Rutter,
Remedial Project Manager
U.S. EPA
(312) 886-8961 or 1 800 621-8431
Tom Kendzierski,
State Project Manager
WDNR
(715) 635-4057
Henry Nehls-Lowe,
Epidemiologist
Wisconsin Department of Health
and Family Services
(608) 266-3479
United States
Environmental Protection
Agency
Office of Public Affairs
Region 5
77 W. Jackson Blvd.
Chicago, Illinois 60604
Illinois, Indiana,
Michigan, Minnesota,
Ohio, Wisconsin
Cleanup Complete at Penta Wood Products Site
Town of Daniels, Wisconsin
September 2000
Excavation of the infiltration basin at the Penta Wood Site
Soil Excavation, Building Demolition Included In Final Cleanup
The Penta Wood Products soil and sediment cleanup will be completed
this fall. To do this, the United States Environmental Protection Agency
(U.S. EPA) conducted the following activities in 2000:
• Demolishing all buildings and equipment on site;
• Excavating and transferring pentachlorophenol (PCP) and arsenic-
contaminated soil to an on-site disposal area;
• Clearing trees and brush;
• Excavating and transferring woodchips to an on-site disposal area;
• Stabilizing arsenic-contaminated soil by mixing it with concrete and
placing it in a 7-acre soil cover area;
• Constructing a water-treatment system, building and infiltration
concrete basin;
• Installing pipes for the treatment system;
• Installing bioventing and ground-water extraction wells; and
• Erecting a fence around the 7-acre soil cover area.
Final cleanup activities that will continue through October will include
implementing land and water-use restrictions for areas beneath the soil
cover area. Native trees and grasses will be planted next spring.
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Once complete, U.S. EPA will have spent about $7.5
million on the project. It was only one of about 10
Superfund sites nationwide to receive cleanup monies
this year. The Penta Wood site was considered a high
priority because of the possibility of contaminated soil
and ground water moving off site and because of the
health risk associated with touching contaminated soil
or drinking PCP or arsenic-contaminated ground wa-
ter.
Background
U.S. EPA selected the Penta Wood cleanup plan in
1998. The plan included consolidating contaminated
soil and sediment and bioventing. Bioventing is a
process that blows air into the ground to speed up the
breakdown of PCP-contaminated soil. The use of ex-
traction wells to remove contaminated ground water
for treatment was also part of the cleanup plan.
Penta Wood Products operated the site, 3 miles west of
Siren on Daniels 70 in the Town of Daniels, as a wood
treatment facility from 1953 to 1992. The company
treated wood posts and telephone poles with a PCP
solution in fuel oil or with a water-borne salt treatment
consisting of ammonia, copper II oxide, zinc and ar-
senate. Over the years, PCP/oil-contaminated waste-
water was discharged into a lagoon and onto a
woodchip pile on site. Contaminants were found in
site soil and ground water in 1994. After eliminating
immediate threats to people and the environment, U.S.
EPA placed the site on its Superfund list to clean up
long-term problems, such as ground-water contamina-
tion.
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