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  2. NPDES Permits Around the Nation

NN0030344: NTUA Twin Arrows Navajo Casino Wastewater Treatment Facility, Flagstaff, AZ

Return to: Navajo Nation NPDES Permits

Permittee Name: Navajo Tribal Utility Authority
Permittee Address: P.O. Box 170, Fort Defiance, Arizona 86504
Facility Name: Twin Arrows Navajo Casino Wastewater Treatment Facility
Facility Location: 22181 Resort Boulevard, Flagstaff, Coconino County, Arizona 86004
Facility Rating: Minor
This permit was issued on: October 17, 2023
This permit shall become effective on: November 1, 2023
Permit reapplication due no later than: May 1, 2028
This permit shall expire at midnight on: October 30, 2028

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  • NPDES Permit No. NN0030344: NTUA Twin Arrows Wastewater Treatment Facility (pdf) (1.17 MB, October 17, 2023)
    Authorization to Discharge Under National Pollutant Discharge Elimination System (NPDES) Permit No. NN0030344 for Navajo Tribal Utility Authority (NTUA) Twin Arrows Navajo Casino Wastewater Treatment Facility, Flagstaff, AZ.
  • NPDES Permit Fact Sheet: NTUA Twin Arrows Wastewater Treatment Facility (pdf) (1.01 MB, October 2023)
    EPA Fact Sheet for National Pollutant Discharge Elimination System (NPDES) Permit No. NN0030344 for Navajo Tribal Utility Authority (NTUA) Twin Arrows Navajo Casino Wastewater Treatment Facility, Flagstaff, AZ.
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Last updated on March 24, 2025
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