Below are EPA's National Pollutant Discharge Elimination System (NPDES) final permit and supporting documents for the City of Wapato Wastewater Treatment Plant discharging to the WIP Drain 2 on the Yakama Indian Reservation in Washington.

• Permit number: WA0050229
• Effective date: November 11, 2011
• Permit expires: October 31, 2016 (administratively extended)

• NPDES Permit, City of Wapato, #WA0050229 (PDF)(31 pp, 241 K, September 12, 2011)
  Final permit.
• NPDES Permit Fact Sheet, City of Wapato, #WA0050229 (PDF)(33 pp, 1 MB, May 2011)
  Provides technical basis for NPDES permit.
• Response to Comments, City of Wapato, #WA0050229 (PDF)(11 pp, 217 K, August 2011)
  EPA's responses to comments on the May 2011 draft permit.