Environmental Protection Agency_Peoples Natural Gas Superfund Meeting NoticeRegion 7
Iowa
Kansas
Missouri
Nebraska
Nine Tribal Nations
Fact Sheet
June 2013
Public Meeting to Announce Proposed Plan and Public
Comment Period for the Peoples Natural Gas Superfund Site
Dubuque, Dubuque County, Iowa
Introduction
The U.S. Environmental Protection
Agency is releasing a Proposed Plan for
a revised remedy for the Peoples
Natural Gas site in Dubuque, Iowa.
EPA will hold a 30 -day public comment
period and encourages the public to
review the Proposed Plan and make
comments. A final decision on the
Proposed Plan will not be made until
EPA reviews public comments.
Public Comment Period
The public comment period for the
Proposed Plan is:
June 26 — July 25, 2013
The public may submit their comments to
EPA prior to the close of the comment
period by submitting them to Ben
Washburn, Community Involvement
Coordinator, via telephone, mail or email at
the addresses listed below.
Public Meeting
EPA will also host a public meeting to
allow the public to submit comments on
the Proposed Plan, as well as answer
questions residents may have about
EPA cleanup actions.
The public meeting will be held:
Monday, July 8, 2013
7:00 — 8:30 p.m.
Carnegie -Stout Public Library
360 W. llthSt.
Dubuque, Iowa
EPA Region 7 is committed to providing
reasonable accommodation to individuals
with disabilities. If you require a reasonable
accommodation to participate in the
meeting, please notify the EPA
Reasonable Accommodations Coordinator,
Jonathan Cooper, 800 - 223 -0425 or at
cooper.jonathan @epa.gov. Speech or
hearing impaired individuals should e -mail
or call using the local relay service.
Proposed Plan
The preferred remedy presented in the
Proposed Plan is institutional controls
with a hydraulic containment system
consisting of groundwater extraction
wells located between Kerper Boulevard
and the levee to prevent migration of
contaminated groundwater. The
objective of the hydraulic containment
system is to control the movement of
contaminated water, not to remove all of
the contamination from the silty sand
aquifer because it has been determined
through extensive investigation that it is
not technically feasible to do so.
Institutional controls, in the form of
environmental covenants and an
ordinance, would place limitations on
the uses of the affected properties and
the installation of wells.
Natural attenuation would continue to
reduce contaminant concentrations in
the dissolved plume supporting plume
stability. Monitoring would verify that this
was occurring.
Background
The Site is the location of a former
manufactured gas plant that operated
from approximately the 1930s to 1954.
Aboveground structures were
dismantled in 1957. During operation of
the plant, coal tar and cyanide- bearing
wood chips were produced and stored
on -site.
Coal tar, a by- product of gas production,
was stored in one underground tank and
one aboveground tank on the Site. Coal
tar is a mixture of compounds including
polynuclear aromatic compounds and
volatile organic compounds, particularly
benzene, toluene, ethylbenzene and
xylenes. The wood chips were buried on
the eastern portion of the Site.
Contamination at the Site was first
identified during a geotechnical
investigation conducted by the Iowa
Department of Transportation in
preparation for construction of a new
section of U.S. Highway 61 across the
western portion of the Site. Subsequent
investigations performed by the EPA
and MidAmerican Energy Company, a
responsible party for the Site,
determined the nature and extent of
contamination at the Site.
On August 30, 1990, the EPA listed the
Site on the National Priorities List (NPL).
The NPL is the list of national priorities
among the known releases or
threatened releases of hazardous
substances, pollutants or contaminants
throughout the U.S. and its territories.
Administrative Record
EPA encourages the community to
review the Administrative Record which
contains information about past cleanup
activities and next steps. The
Administrative Record is available
during normal business hours at the
following locations:
EPA Records Center
11201 Renner Blvd.
Lenexa, Kan.
Carnegie -Stout Public Library
360 W. 11th St.
Dubuque, Iowa
Questions or requests for information
can be submitted to:
Ben Washburn
Community Involvement Coordinator
U.S. EPA Region 7
11201 Renner Blvd.
Lenexa, KS 66219
Toll free: (800) 223 -0425
email: washburn.ben @.epa.gov
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Kevin Firnstahl - EPA FACT SHEET: Public Meeting to Announce Proposed Plan
and Public Comment Period for the Peoples Natural Gas Superfund Site, Dubuque,
Dubuque County, Iowa
From: "Kring, Debbie" <kring.debbie@,epa.gov>
To: "kfirnsta @cityofdubuque.org" <kfirnsta @cityofdubuque.org>
Date: 6/24/2013 10:33 AM
Subject: EPA FACT SHEET: Public Meeting to Announce Proposed Plan and
Public Comment Period for the Peoples Natural Gas Superfund Site,
Dubuque, Dubuque County, Iowa
Attachments: Peoples Natural Gas Proposed Plan Public Comment FS 6.6.13.doc
Please share the attached EPA Fact Sheet with the Dubuque Mayor and City Council, as information only. If you
have questions about its content, please contact EPA's Public Information Specialist, Mr. Ben Washburn, at (913)
551 -7364 or toll -free at 1- 800 - 223 -0425.
Thank you.
Debbie
Debra L. Kring
Public Affairs Specialist /Local Elected Officials Liaison
U.S. EPA - Region 7
Office of Public Affairs
11201 Renner Blvd.
Lenexa, Kansas 66219
(913) 551 -7725
(Toll -free 1- 800 - 223 -0425)
file : / / /C:/ Users / kfirnsta / AppData/Local /Temp/XPgrpwise/51C 82068DBQ_... 6/25/2013