WRANGELL, CITY OF

NPDES permit AK0021466 · Major POTW · effective, expires 2030-10-31 · EPA's file as of 2026-09-26

Keep this permit as a site — opens New site at EPA's facility point (56.45309, -132.380137); you set the radius.

These are the last limits EPA's file holds for this permit, from an earlier version of it (version 0 in EPA's file): its current version carries none yet. Read your permit: a renewal can change them.

EPA's record, 2025-09-01 to 2026-08-31

Last period with anything received: 2026-08-31. Most often over: Oxygen, dissolved [DO] (2), pH (2), Solids, total suspended (1).

Reporting

Reports are due about 15 days after each monitoring period ends (the most common figure among AK permits in EPA's filings — check your permit).

• Outfall 001, form A (Monthly Interim): every 1 month(s), 42 values

How strict are these limits?

Each concentration limit against the same limit in comparable permits. Where it appears more than once, its strictest value.

• pH, instantaneous maximum 8.5 SU — stricter than 91% of 613 other major POTWs nationwide; 8% have the same limit
• pH, instantaneous minimum at least 6.5 SU — stricter than 86% of 607 other major POTWs nationwide; 13% have the same limit
• Oxygen, dissolved [DO], instantaneous minimum at least 6 mg/L — stricter than 59% of 601 other major POTWs nationwide; 19% have the same limit
• Nitrogen, ammonia total [as N], monthly average 15.5 mg/L — stricter than 8% of 2309 other major POTWs nationwide
• Nitrogen, ammonia total [as N], daily maximum 34.6 mg/L — stricter than 3% of 1661 other major POTWs nationwide
• Solids, total suspended, monthly average 30 mg/L — stricter than 3% of 3357 other major POTWs nationwide; 60% have the same limit
• Solids, total suspended, weekly average 45 mg/L — stricter than 3% of 2056 other major POTWs nationwide; 65% have the same limit
• BOD, 5-day, 20 deg. C, monthly average 120 mg/L — stricter than 0% of 1449 other major POTWs nationwide
• BOD, 5-day, 20 deg. C, weekly average 200 mg/L — stricter than 0% of 1050 other major POTWs nationwide
• Solids, suspended percent removal, monthly average minimum at least 30 % — stricter than 0% of 1528 other major POTWs nationwide
• BOD, 5-day, percent removal, monthly average minimum at least 30 % — stricter than 0% of 838 other major POTWs nationwide; 1% have the same limit

3 other limits: fewer than 20 comparable permits.

Limits in force (42)

Built from EPA's ECHO bulk files. EPA's file, not the permit document, is the source: read your permit. Check a report before you file it · All states