1/1
dw110202_drinking water042.jpg
WASHINGTON, DC- Feb. 02: Environmental Protection Agency Administrator Lisa Jackson during the Senate Environment and Public Works hearing on chromium-6 and perchlorate and other chemicals that have been found in drinking water supplies the U.S. (Photo by Scott J. Ferrell/Congressional Quarterly)

WASHINGTON, DC- Feb. 02: Environmental Protection Agency Administrator Lisa Jackson during the Senate Environment and Public Works hearing on chromium-6 and perchlorate and other chemicals that have been found in drinking water supplies the U.S. (Photo by Scott J. Ferrell/Congressional Quarterly)

Copyright Congressional Quarterly Inc.