Data Catalog

• Federal

  Drinking Water Maximum Contaminant Levels (MCLs)

  U.S. Environmental Protection Agency —

  National Primary Drinking Water Regulations (NPDWRs or primary standards) are legally enforceable standards that apply to public water systems. Primary standards...
• Federal

  Unregulated Contaminant Monitoring Rule 3 (UCMR 3), (2013-2015) Occurrence Data

  U.S. Environmental Protection Agency —

  The third Unregulated Contaminant Monitoring Rule (UCMR 3), conducted under EPA oversight, was published in the Federal Register on May 2, 2012. UCMR 3 requires...
• 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...
• 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

  Unregulated Contaminant Monitoring Program Data

  U.S. Environmental Protection Agency —

  EPA uses the Unregulated Contaminant Monitoring (UCM) program to collect data for contaminants suspected to be present in drinking water, but that do not have health-...

You can also access this registry using the API (see API Docs).

Didn't find what you're looking for? Suggest a dataset here.