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The ICPRB is assisting
the District of Columbia and Maryland governments by developing
models to guide restoration efforts in the interstate Anacostia
watershed.
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The District of Columbia, Maryland, and Virginia have placed portions
of the tidal Potomac river on their 303(d) impaired waters lists
for PCB contamination. PCB concentrations in fish tissue have been
measured at high enough levels that fish consumption advisories
have been issued. In some cases, PCB concentrations in water have
exceeded state standards. All three jurisdictions are required to
complete a Total Maximum Daily Load (TMDL) analysis that determines
the sources that contribute to the PCB impairment and by what amount
those sources must be reduced so that PCB levels in fish and in
water meet state standards.
In 2000, a consent decree was entered into by the EPA and the U.S.
District Court (Kingman Park Civic Association, et al. v. U.S. Environmental
Protection Agency, et al., No. 1:98CV00758 (D.D.C.)) in which the
EPA agreed to a schedule for completing TMDL studies for the impairments
then on the District’s 303(d) impaired waters list. That schedule
required that the District of Columbia PCB TMDL be completed by
September 30, 2007. Maryland and Virginia were not required to complete
their PCB TMDLs by this date, but the three jurisdictions informally
agreed in 2004 to coordinate their TMDL development efforts and
address all their tidal Potomac PCB impairments by September 30,
2007. This date was later extended to October 31, 2007.
ICPRB assisted this effort by acting as a coordinating agency for
the project. LimnoTech developed the tidal Potomac and Anacostia
PCB TMDL model. The EPA assisted by contributing its expertise and
partial funding. The District of Columbia, Maryland, and Virginia
all participated in development of the TMDL, and the jurisdictions
plus ICPRB, LimnoTech, MWCOG, and the EPA constituted the PCB TMDL
Steering Committee.
On behalf of the state of Maryland and the District of Columbia,
ICPRB submitted the PCB TMDL report to the USEPA on Sepember 28,
2007. The Virginia Department of Environmental Quality (DEQ) is
following its routine TMDL adoption process and requesting approval
from the Virginia Water Control Board, at their next meeting on
October 25, 2007, to submit this TMDL to EPA.
The Tidal Potomac PCB TMDL was
approved by the EPA on 10-31-2007. 
Links to the relevant documents are below.
Stakeholder Involvement Process
Information about the stakeholder
involvement process
2007 Public Meetings to present
draft PCB TMDL
July 19, 2007 - Virginia Dept. of Environmental Quality Northern
Regional Office, Woodbridge, VA
July 18, 2007 - Metropolitan Washington Council of Governments,
Washington, DC
July 17, 2007 - Interstate Commission on the Potomac River
Basin, Rockville, MD
- LaPlata Branch (Charles County) Public Library, LaPlata,
MD
2006 Public Meetings
June 29, 2006 - Meeting in La Plata, Maryland - Public
Meeting Announcement, Meeting
Flyer
June 22, 2006 - Meeting in Occoquan, Virginia - Public
Meeting Announcement, Meeting
Flyer
June 12, 2006 - Meeting in Washington, District of Columbia
- Public
Meeting Announcement
Posters for June Public Meetings:
Introduction, Poster
1, Poster 2,
Poster 3,
Poster 4
Technical Advisory Committee Meetings
May 31, 2007 - TAC: Agenda,
Presentation 1, Presentation
1 errata, Presentation
2
January 30, 2007 - TAC:
Agenda, Presentation
1, Presentation
2
October 31, 2006 - TAC: Agenda,
Presentation1(Low
Resolution), Presentation1(High
Resolution)
April 18, 2006 - Steering Committee Meeting: Agenda,
Baker1,
Baker2,
Velinsky,
Foster
January 23, 2006-TAC, Steering Committee Meetings:Agenda
, Agenda-Steering Comm.,
Minutes Presentation
1 , Presentation
2(7MB)
September 29, 2005-TAC, Steering Committee Meetings:
Agenda-TAC, Agenda-Steering
Comm., Presentation
1, Presentation
2, Presentation
3
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