Alaska's NPDES Authorization | Region 10 | US EPA

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Alaska's NPDES Authorization

Summary: On October 31, 2008, EPA approved the State of Alaska's application to administer and enforce an Alaska version of the National Pollutant Discharge Elimination System (NPDES) program under Section 402 of the Clean Water Act. The State administers the approved Alaska Pollutant Discharge Elimination System program Exit EPA disclaimer through the Alaska Department of Environmental Conservation. EPA retains permitting and enforcement authorities for facilities operating outside state waters (generally 3 miles offshore), and others, such as facilities located in Indian Country.

The approved implementation plan transfers administration of specific NPDES program components from EPA to Alaska in Phases I-IV, subject to continuing EPA oversight and enforcement authority:

  • Phase I (transferred October 2008): Domestic discharges, timber, seafood processing
  • Phase II (transferred October 2009): Federal facilities, stormwater, pretreatment program, misc. non-domestic discharges
  • Phase III (transferred October 2010): Mining
  • Phase IV (transferred October 2012): oil & gas facilities, cooling water intake structures, munitions, and remaining facilities not previously transferred in Phases I-III

NPDES Program Transfer Documents

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