Data Catalog

• Federal

  SDWISFED Drinking Water Data

  U.S. Environmental Protection Agency —

  SDWIS/FED is EPA's national regulatory compliance database for the drinking water program. It includes information on the nation's 160,000 public water systems and...
• Federal

  Drinking Water Treatability Database (TDB)

  U.S. Environmental Protection Agency —

  The Drinking Water Treatability Database (TDB) presents referenced information on the control of contaminants in drinking water. It allows drinking water utilities,...
• Federal

  National Contaminant Occurrence Database (NCOD)

  U.S. Environmental Protection Agency —

  NCOD is a repository of drinking water quality data to be made available to EPA decision makers and the public.
• Federal

  Six-Year Review Contaminant Occurrence Data

  U.S. Environmental Protection Agency —

  The Safe Drinking Water Act (SDWA) requires EPA to review each National Primary Drinking Water Regulation (NPDWR) at least once every six years and revise them, if...
• Federal

  Contaminant Candidate List 1

  U.S. Environmental Protection Agency —

  CCL 1 is a list of contaminants that are currently not subject to any proposed or promulgated national primary drinking water regulations, that are known or...
• Federal

  Contaminant Candidate List 2

  U.S. Environmental Protection Agency —

  CCL 2 is a list of contaminants that are currently not subject to any proposed or promulgated national primary drinking water regulations, that are known or...
• Federal

  Contaminant Candidate List 3

  U.S. Environmental Protection Agency —

  CCL 3 is a list of contaminants that are currently not subject to any proposed or promulgated national primary drinking water regulations, that are known or...
• Federal

  Distribution (State Allotment) of Drinking Water State Revolving Fund Appropriation from the American Recovery and Reinvestment Act of 2009 (ARRA)

  U.S. Environmental Protection Agency —

  The ARRA appropriation for the DWSRF program is $2,000,000,000. DWSRF allotments are based on percentages derived from the 2003 Drinking Water Infrastructure Needs...

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