NPDES Permit for Wrangell Wastewater Treatment Plant in Alaska

EPA is re-proposing to reissue this permit. We are accepted public comments on the revised draft permit from July 28 through August 28, 2023. See "Proposed Permit" below for more information.

Below are EPA's National Pollutant Discharge Elimination System (NPDES) permit and supporting documents for the Wrangell Wastewater Treatment Plant in Alaska.

The treatment plant discharges primary treated effluent to Zimovia Straight under a Clean Water Act Section 301(h)-modified NPDES permit.

Permit number: AK0021466

Current Permit

Effective date: January 7, 2002
Permit expired: January 8, 2007 (administratively continued)

NPDES Permit, Wrangell Wastewater Treatment Plant, #AK0021466 (pdf) (4.33 MB, December 4, 2001)
Final wastewater discharge permit.
NPDES Permit Fact Sheet, Wrangell Wastewater Treatment Plant, #AK0021466 (pdf) (476.21 KB, September 2001)
Technical basis for permit.
Response to Comments on Draft NPDES Permit, Wrangell Wastewater Treatment Plant, #AK0021466 (pdf) (53.74 KB, December 2001)
EPA's responses to public comments received on the September 2001 draft permit.

Proposed Permit

EPA is proposing to reissue this permit. The draft permit and supporting documents are available below.

On October 25, 2022, EPA released a draft NPDES permit and 301(h) Tentative Decision for public comment through December 9, 2022. Based on new information and input from the State of Alaska and City of Wrangell, EPA revised the permit and added additional conditions. The 301(h) Tentative Decision was not revised or re-released for comment. We accepted public comments on the revised draft permit from July 28 through August 28, 2023.

Revised Draft NPDES Permit, Wrangell Wastewater Treatment Plant, #AK0021466 (pdf) (912.55 KB, July 2023)
Revised proposed wastewater discharge permit.
Revised NPDES Permit Fact Sheet, Wrangell Wastewater Treatment Plant, #AK0021466 (pdf) (1.13 MB, July 2023)
Technical basis for proposed revisions to 2022 draft permit.
NPDES Permit Fact Sheet, Wrangell Wastewater Treatment Plant, #AK0021466 (pdf) (781.12 KB, October 2022)
Technical basis for 2022 draft permit.
301(h) Tentative Decision Document, Wrangell Wastewater Treatment Plant, #AK0021466 (pdf) (1.98 MB, October 2022)
EPA's tentative decision on whether the Wrangell Wastewater Treatment Plant continues to qualify for a 301(h)-modified NPDES permit.
Mixing Zone Dilution Modeling for Six Alaska POTWs (pdf) (2.09 MB, August 5, 2021)
Mixing zone dilution analysis of discharges from six 301(h) publicly-owned wastewater treatment facilities in southeast Alaska (Haines, Ketchikan, Petersburg, Sitka, Skagway, Wrangell).