National Water Program (U.S.) creator United States Environmental Protection Agency. Office of Water. text Periodicals. dcu Washington, D.C US Environmental Protection Agency, Office of Water 200u 9999 continuing Annual eng volumes : digital, PDF file CRDP Project record. Mode of access: Internet at the EPA Office of Water Web site. Address as of 4/07/09: http://www.epa.gov/water/waterplan/ ; current access is available via PURL. n-us--- National Water Program (U.S.) Evaluation Periodicals Water quality United States Evaluation Periodicals Drinking water United States Periodicals Water Pollution United States Periodicals National Water Program (U.S.) Evaluation Drinking water Water Pollution Water quality Evaluation United States EP 2.43: EP 2.43: 2328-4552 (DLC) 2011230053 (OCoLC)701368031 1949-5188 2009230698 http://purl.access.gpo.gov/GPO/LPS110976 http://purl.access.gpo.gov/GPO/LPS110976 GPO 090407 20170826160828.0 ocn317980300 eng