Petersburg WWTP
Petersburg, AK · Petersburg County · Publicly Owned Treatment Works
- Average flow
- 0.56 MGD
- Design flow
- 1.2 MGD
- NPDES permit
- AK0021458
- Effective
- Permit expires
- October 2030
- Population served
- 3,198
- CWNS 2022
Petersburg WWTP is a publicly owned wastewater treatment works in Petersburg, Petersburg County, Alaska treating an average of 0.56 million gallons per day against a permitted design capacity of 1.2 MGD, serving about 3,198 residents. It discharges under NPDES permit AK0021458 (effective), which expires in October 2030, with 3 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 3
- Effluent violations
- 3
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Petersburg WWTP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Alaska
Thorne Bay · 80 mi away
0.27 MGD
Sitka · 93 mi away
1.1 MGD
Ketchikan · 102 mi away
0.00000021 MGD
Ketchikan · 112 mi away
5.09 MGD
Ketchikan · 118 mi away
0.55 MGD
Juneau · 123 mi away
2.44 MGD
Juneau · 126 mi away
0.08 MGD
Metlakatla · 128 mi away
0.23 MGD
Petersburg WWTP: frequently asked questions
Sources and methodology
Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.
Data refreshed September 11, 2026; facility record last updated September 1, 2025.