WASHINGTON – Northern States Power Co.
will begin cleanup of the Ashland/Northern States Power Lakefront Superfund
Site in Northwestern Wisconsin under a settlement the Department of Justice and
the Environmental Protection Agency (EPA) announced today. The 40-acre site is located on the shore of
Chequamegon Bay in Lake Superior and was used for various industrial purposes
for more than a century, resulting in the release of volatile organic
compounds, such as benzene, and semivolatile organic compounds, such as
naphthalene, at the site.
Under the agreement, filed today with the U.S.
District Court for the Western District of Wisconsin in Madison, Wis., Northern
States Power will design, construct and implement the cleanup plan for the
on-land portion of the site. The on-land
cleanup is expected to cost approximately $40 million. The United States will also require
additional cleanup of sediments in Chequamegon Bay, and expects that Northern
States Power and any other responsible parties will perform the rest of the
cleanup. That work is not part of the agreement filed with the Court today.
Today’s agreement also requires Northern
States Power to transfer approximately 990 acres of land along the Iron River
to the Wisconsin Department of Natural Resources and 400 acres within the
reservation of the Bad River Band of the Lake Superior Chippewa Indians to the
Bad River tribe. These parcels, worth about
$1.9 million, will be preserved by the state and the Bad River tribe to enhance
natural resources in the area that have been harmed by pollution from the site,
such as fisheries in Chequamegon Bay and its rivers. In addition, the state of Wisconsin will
transfer 114 acres of land to the Red Cliff Band of the Lake Superior Chippewa
Indians. That land will also be managed
to preserve natural resources. The
National Oceanic and Atmospheric Administration and the U.S. Fish and Wildlife
Service also serve as trustees for natural resources in the area and joined the
settlement on behalf of the United States.
“This agreement will begin the
long-awaited cleanup of contamination at the Ashland Lakefront site,” said
Ignacia S. Moreno, Assistant Attorney General for the Environment and Natural
Resources Division. “The agreement will result in the preservation of land in
the Chequamegon Bay watershed, including tribal lands, to conserve and enhance
natural resources and aquatic habitat that have been harmed by more than a
century of pollution at the site.”
“Chequamegon Bay and Lake Superior will be
better protected as a result of this agreement,” said EPA Region 5 Regional
Administrator Susan Hedman. “Removing
the most highly contaminated soil from the site and controlling the flow of
contaminated groundwater will prevent polluted water from entering the bay and
harming fisheries.”
For more than a century, the Ashland site has
been home to various industrial uses, including sawmills, railroads, and a city
wastewater treatment plant. The primary source
of pollution at the site was the manufactured gas plant operated by Northern
States Power’s predecessor company between 1885 and 1947. Pollution from the manufactured gas plant
contaminated both the on-land portion of the site and the sediment in the bay.
The on-land cleanup will include removal of
source material and impacted soil in Kreher Park and the adjacent bluff area
and recovery wells designed to remove pollution from the Copper Falls aquifer. The work Northern States Power will perform under
this agreement is expected to take approximately two to three years.
EPA will oversee the work to ensure that it
follows the cleanup plan and complies with the agreement signed by the
parties. The state of Wisconsin will
support EPA in overseeing the work.
The proposed consent decree will be subject to
public comment for 30 days prior to entry in federal court. The consent decree will be available at
www.justice.gov/enrd/Consent_Decrees.html.