STATEMENT OF DONALD W. MURPHY, DEPUTY DIRECTOR, NATIONAL PARK SERVICE, DEPARTMENT OF THE INTERIOR
BEFORE THE HOUSE COMMITTEE ON RESOURCES CONCERNING THE
WASHINGTON AQUEDUCT AND THE EFFECTS OF ITS DISCHARGE ON THE C&O CANAL
NATIONAL HISTORICAL PARK AND THE ENDANGERED SHORTNOSE STURGEON
JUNE 19, 2002
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Mr. Chairman, thank you for the opportunity to appear
before this committee to present the views of the Department of the Interior on
discharges from the Washington Aqueduct on the Chesapeake and Ohio (C&O) Canal
National Historical Park and on the endangered shortnose sturgeon.
The U.S. Army Corps of Engineers (Corps) operates the
Washington Aqueduct facility which provides potable water to the District of
Columbia and certain jurisdictions in Northern Virginia. The U.S. Environmental Protection Agency
(EPA) regulates the discharges from this facility within the District of
Columbia. Although the Department of
the Interior does not bear primary responsibility for the operation of the
Washington Aqueduct facility or the regulation of its discharges, we take very
seriously our stewardship responsibilities for the resources entrusted to our
care. Since we became aware of
environmental concerns regarding the Washington Aqueduct facility’s operation,
we have immersed ourselves in the complex legal and technical issues associated
with them, and are committed to working with the other agencies and
jurisdictions to address any problems and concerns.
Recently, EPA provided a key opportunity for all
concerned with the impacts of the Washington Aqueduct facility. On March 28, 2002, EPA proposed a revised
discharge permit for the facility under the National Pollution Discharge
Elimination System (NPDES). The
Department of the Interior has prepared comments on the proposed permit. As an interim goal, the Department supports
the approximately 35 percent further reduction of sediments discharged to the
Potomac River proposed in the revised permit.
However, the Department believes there is a need for additional research
and monitoring of discharge impacts.
With respect to the U.S. Fish and Wildlife Service’s
(FWS) involvement in the Washington Aqueduct issue, the FWS has stewardship
responsibility for certain Potomac River species. Using the best scientific information available, the FWS has
already determined that, except for occasional transient individuals,
endangered species under the jurisdiction of the FWS are neither present, near,
nor likely to be affected by the discharges for purposes of the Endangered Species
Act. Please note that the National
Marine Fisheries Service, not FWS, has sole regulatory authority over the
shortnose sturgeon. If any new
information that has not already been considered becomes available suggesting
effects to listed species or their designated critical habitat, the FWS will
determine if Section 7 consultation under the Endangered Species Act must be
reinitiated.
In addition to ESA listed species, the FWS has statutory
authority and trust responsibilities with respect to a number of Potomac River
migratory fish species including striped bass, alewife, blueback herring, and
American shad. In 1998, EPA requested
that FWS convene a panel of fisheries experts to recommend short-term measures
to protect fish potentially impacted by the discharges, while the discharge
permit was being re-issued. In 1999,
the panel recommended, among other measures, a time of year restriction on the
discharges that corresponds to sensitive breeding and migratory seasons. EPA has included this restriction in its
current draft permit. The FWS
Environmental Contaminants Branch also provided limited technical assistance to
EPA in the development of a workplan for a 3-year discharge study. The FWS believes additional studies designed
to assess the direct and cumulative impacts on aquatic resources under FWS
jurisdiction are needed. The FWS is
willing to provide technical assistance with respect to these studies.
With respect to the National Park Service’s (NPS)
involvement in the Washington Aqueduct issue, the facility’s discharges flow
through conduits traversing the C&O Canal National Historical Park managed
by NPS. These conduits empty either on
parkland near the Potomac River or in the river itself.
The establishment of the C&O Canal National
Historical Park was the culmination of years of community efforts to save the
canal as a recreational, natural, and historical resource. It appears that Congress sought to ensure
that creation of the park would not disturb certain valid existing rights and
permits by including in the enabling legislation (P.L. 91-664) language that
grandfathered them. Section 5(a) of
that law states: “The enactment of this Act shall not affect adversely any
valid rights heretofore existing, or any valid permits heretofore issued, within
or relating to areas authorized for inclusion in the park.” The Washington Aqueduct has had discharge
lines in place since at least 1927, well before the park was established in
1971. Since the hearing on the
Washington Aqueduct by the Subcommittee on National Parks, Recreation, and
Public Lands on October 30, 2001, the Department, with the cooperation of the
Corps, has been reviewing relevant documents to determine whether all the
existing discharges fall within the scope of the grandfathered permits and
rights-of-way.
The National Park Service believes there is a need to
assess the nature and extent of any potential impacts from these discharges on
park resources. The NPS is willing to
work with the other federal agencies on these studies. If NPS ultimately determines that authorized
discharges are harming park resources, the agency will take appropriate action
to protect park resources consistent with the finding of the studies NPS and
FWS have identified.
In addition to managing the C&O Canal National
Historical Park, the NPS also manages the riverbed of the Potomac in the
District of Columbia. Based on its
unique assignment to the Department’s jurisdiction, NPS has long managed the
riverbed as miscellaneous property on behalf of the Office of the Secretary of
the Interior, but it is not managed as a unit of the National Park System. Nevertheless, the potential impact of
sedimentation on the riverbed from the Washington Aqueduct discharges is
another area of concern to the NPS.
In addition to collecting information regarding the
Washington Aqueduct discharges, since the October, 2001 hearing on this
subject, the NPS has begun collecting information from other units of the
National Park System that are also involved with discharges that require NPDES
permits in order to compare how the agency addresses situations similar to the
one here in Washington, D.C. One such
unit is Gateway National Recreation Area in New York and New Jersey, where the
water quality is heavily influenced by permitted discharges from sewage
treatment plants, combined sewer overflows, industrial effluents, and toxic
substances from abandoned landfills. As
part of an ongoing program to improve water quality in the park, Gateway staff
routinely review draft NPDES permits and provide recommendations to New York
State and New York City governments. Over the past decade, the staff has: (1)
reviewed and commented on four permits for sewage treatment plants adjacent to
Jamaica Bay (26th Ward, Red Hook, Coney Island, and the Rockaway
plants); (2) participated in a review of New York City discharges to reduce the
volume of sediment flowing into to Jamaica Bay; and (3) collaborated with the
Interstate Sanitation Commission in an effort, though unsuccessful, to
eliminate the year-round use of chlorine in New York City sewage treatment
plant effluents. However, we note that
the drinking water plant return of sediment back to the Potomac River by the
Washington Aqueduct is qualitatively different from the raw and treated sewage
discharges that the Gateway staff monitors.
Mr. Chairman, in conclusion, the Department is committed
to continuing to learn more about the impacts of the outfalls from the
Washington Aqueduct on the resources managed by the Department and working with
the Federal agencies with authority over the discharges to minimize those
impacts. That concludes my prepared
remarks, and I would be pleased to answer any questions you or other committee
members might have.