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DC Water and Sewer Authority
5000 Overlook Avenue, SW, Washington, DC 20032
|FOR IMMEDIATE RELEASE
Wednesday May 19, 2004
|Contact: Johnnie Hemphill
TREATMENT RECOMMENDED TO ADDRESS LEAD PROBLEM
Community Meetings Scheduled to Provide Information on
The Technical Expert Working Group (TEWG) formed to address the problem
of elevated lead levels in the drinking water in some District homes has
recommended a treatment method to solve the problem of lead leaching in
lead service line pipes and fixtures. The TEWG includes the D. C. Water
and Sewer Authority, the distributor of water for the District, the
Washington Aqueduct which produces and treats the water, the D. C.
Department of Health, and the Environmental Protection Agency (EPA).
Starting on or about June 1, 2004, the Washington Aqueduct will begin
adding zinc orthophosphate (ZnOP) to the District’s water supply. ZnOP
is a commonly used corrosion inhibitor that will form a protective coating
inside of lead service line pipes and fixtures in customers’ homes to
prevent lead from leaching into drinking water. It may take six months or
longer for a reduction in lead levels to occur. ZnOP is a food-grade
chemical and is generally recognized as safe by the Food and Drug
Administration and the EPA
ZnOP will be added to the District’s water supply in two phases. In
the first phase, ZnOP will be added to water that is distributed to a
small area in the Northwest quadrant of the city—an area bordered
roughly by Western Avenue on the north, Utah Avenue and Reno Road on the
east, Massachusetts Avenue on the south and Wisconsin Avenue on the west.
This area was selected for the first phase because it is representative of
the entire system, including lead service line pipes. In the second phase,
the Washington Aqueduct plans to add ZnOP to the entire water supply
system later this summer.
Two community meetings will be held to provide
residents in the first phase information about the chemical change. The
meetings will be held:
|Monday, May 24, 2004
6:30 - 8:00 pm
St. Columbus Church
4201 Albemarle Street, NW
|Wednesday, June 2, 2004
6:30 – 8:00 pm
Blessed Sacrament Shrine Church
5841 Chevy Chase Parkway, NW