Skip to main content
U.S. flag

An official website of the United States government

Here’s how you know

Dot gov

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

HTTPS

Secure .gov websites use HTTPS
A lock (LockA locked padlock) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

    • Environmental Topics
    • Air
    • Bed Bugs
    • Cancer
    • Chemicals, Toxics, and Pesticide
    • Emergency Response
    • Environmental Information by Location
    • Health
    • Land, Waste, and Cleanup
    • Lead
    • Mold
    • Radon
    • Research
    • Science Topics
    • Water Topics
    • A-Z Topic Index
    • Laws & Regulations
    • By Business Sector
    • By Topic
    • Compliance
    • Enforcement
    • Laws and Executive Orders
    • Regulations
    • Report a Violation
    • Environmental Violations
    • Fraud, Waste or Abuse
    • About EPA
    • Our Mission and What We Do
    • Headquarters Offices
    • Regional Offices
    • Labs and Research Centers
    • Planning, Budget, and Results
    • Organization Chart
    • EPA History

Breadcrumb

  1. Home
  2. NPDES Permits Around the Nation

NN0020621: NTUA Shiprock Wastewater Treatment Facility, Shiprock, NM

Return to: Navajo Nation NPDES Permits

Discharger Name: Navajo Tribal Utility Authority ("NTUA")
Discharger Address: P.O. Box 170, Fort Defiance, Arizona 86504
Facility Name: Shiprock Wastewater Treatment Facility
Facility Location Address: 1.0 mile Northwest of Junction US 64 and 491 intersections, Shiprock, San Juan County, New Mexico 87420
Facility Rating: Major
This permit was issued on: August 16, 2023
This permit shall become effective on: September 1, 2023
This permit shall expire at midnight on: August 31, 2028

Free viewers and readers are available to access documents on our website. If you encounter issues with assistive technology, please contact us.

  • NPDES Permit No. NN0020621: Navajo Tribal Utility Authority Shiprock WWTF (pdf) (4.77 MB, August 15, 2023)
    Authorization to Discharge Under National Pollutant Discharge Elimination System (NPDES) Permit No. NN0020621 for Navajo Tribal Utility Authority (NTUA) Shiprock Wastewater Treatment Facility (WWTF).
  • NPDES Permit Fact Sheet: Navajo Tribal Utility Authority Shiprock WWTF (pdf) (764.06 KB, August 2023)
    EPA Fact Sheet for National Pollutant Discharge Elimination System (NPDES) Permit No. NN0020621 for Navajo Tribal Utility Authority (NTUA) Shiprock Wastewater Treatment Facility (WWTF).
Contact Us to ask a question, provide feedback, or report a problem.
Last updated on March 24, 2025
  • Assistance
  • Spanish
  • Arabic
  • Chinese (simplified)
  • Chinese (traditional)
  • French
  • Haitian Creole
  • Korean
  • Portuguese
  • Russian
  • Tagalog
  • Vietnamese
United States Environmental Protection Agency

Discover.

  • Accessibility Statement
  • Budget & Performance
  • Contracting
  • EPA www Web Snapshot
  • Grants
  • No FEAR Act Data
  • Plain Writing
  • Privacy
  • Privacy and Security Notice

Connect.

  • Data
  • Inspector General
  • Jobs
  • Newsroom
  • Regulations.gov
  • Subscribe
  • USA.gov
  • White House

Ask.

  • Contact EPA
  • EPA Disclaimers
  • Hotlines
  • FOIA Requests
  • Frequent Questions
  • Site Feedback

Follow.