About the Annual Noncompliance Report
EPA and States regulate hundreds of thousands of facilities under the
Clean Water Act, from small dispersed sites that have runoff during wet
weather (such as construction sites or animal feedlots), to pipe
discharges at factories or wastewater treatment plants that are required
to stay below permitted pollutant levels. The available data for
violations increases based on the size of facilities.
This interactive website presents annual statistics for Clean Water Act permit holders. Each permittee measures its discharges (typically on
a monthly basis), and submits data to the state (or directly to EPA if
the state does not have program authorization, such as in MA, NH, AK,
NM, ID, PR, DC and trust territories). Many states enter the
measurements into EPA's national database, which will automatically
calculate violations. Other states do not provide this level of
information to EPA, but instead provide EPA with a summary view of what
is happening. EPA compiles this information to show how many facilities
were reviewed (pollutant measurements were calculated against limits to
find violations), how many permittees had violations, and how many
enforcement actions were taken to address violations.
This interactive map allows you to explore the data, and a Report is also available with
complete findings and additional information. If you click on a state to
examine facility data, pay particular attention to caveats about whether
facility information is entered in EPA's databases, otherwise, you may
draw false conclusions. For example, a state that does not enter
discharge data EPA's database will have few, if any facilities showing
up in violation. To get information about violations within that state,
you will need to review state websites, or contact the state CWA program
for information on obtaining that level of detail.
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