Clean Water Act discharge permit · NPDES ID0020401
ST ANTHONY, CITY OF - ST ANTHONY WWTP, Saint Anthony, ID: NPDES ID0020401 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 10Pollutants under a numeric limit
- 11Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
ST ANTHONY, CITY OF - ST ANTHONY WWTP, held by ST. ANTHONY, CITY OF, holds NPDES permit ID0020401, which discharges to Snake River (Henry'S Fork). EPA’s file records it issued August 9, 2001 and expiring September 11, 2006. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | ST ANTHONY, CITY OF - ST ANTHONY WWTP |
|---|---|
| Permittee as filed | ST. ANTHONY, CITY OF |
| NPDES ID | ID0020401 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | August 9, 2001 |
| Expiration date | September 11, 2006 |
| Address | Saint Anthony, ID 83445 |
| Receiving water | SNAKE RIVER (HENRY'S FORK) |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Lower Henrys Fork-Egin Lakes (HUC 170402030404) |
| NAICS | 221320 – Sewage Treatment Facilities |
| SIC | 4952 – Sewerage Systems |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 15Pollutants on file
- 10Under a numeric limit
- 15With a violation of any kind
- 11With an effluent exceedance
An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.
| Pollutant or measure | Limits | Violations, any kind | Effluent exceedances | Latest exceedance | Largest exceedance, as filed |
|---|---|---|---|---|---|
| BOD, 5-day, 20 deg. C | 5 | 324 | 94 | May 31, 2021 | 2,510% over the limit |
| Chlorine, total residual | 4 | 125 | 50 | June 30, 2018 | 667% over the limit |
| Solids, total suspended | 5 | 181 | 37 | April 30, 2026 | 782% over the limit |
| BOD, 5-day, percent removal | 1 | 63 | 28 | May 31, 2008 | 186% over the limit |
| pH | 2 | 114 | 16 | June 30, 2016 | |
| Coliform, fecal MF, MFC broth, 44.5 C | 0 | 69 | 15 | February 28, 2001 | 99,999% over the limit |
| E. coli, MTEC-MF | 2 | 34 | 10 | February 29, 2004 | 46,205% over the limit |
| E. coli | 0 | 9 | 7 | December 31, 2023 | 496% over the limit |
| Solids, suspended percent removal | 0 | 6 | 5 | May 31, 2021 | 131% over the limit |
| Fecal coliform, MPN, EC med, 44.5 C | 1 | 18 | 3 | January 31, 2004 | 99,899% over the limit |
| Nitrogen, ammonia total [as N] | 1 | 24 | 1 | July 31, 2023 | 12% over the limit |
| Flow, in conduit or thru treatment plant | 1 | 50 | 0 | ||
| Temperature, water deg. centigrade | 1 | 18 | 0 | ||
| Oil and grease | 0 | 4 | 0 | ||
| Alkalinity, total [as CaCO3] | 0 | 1 | 0 |
Cited to the EPA ICIS-NPDES limits and effluent violations files (ECHO download); up to 60 rows shown, most exceedances first.
Inspections, violations and enforcement
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES ID0020401.
Inspections
EPA’s inspection file holds no inspection for NPDES ID0020401.
Formal enforcement and penalties
0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.
Informal enforcement
EPA’s informal enforcement file holds no action for NPDES ID0020401.
Cited to the EPA ICIS-NPDES violation, inspection and enforcement files (ECHO download); up to 50 rows of each shown, newest first.
Watch this permit
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, ID0020401.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
How we handle your data → Privacy
EPA publishes a free Detailed Facility Report for every permit on ECHO: its compliance status quarter by quarter, its inspections, and its enforcement actions and penalties. EPA also sends free notices of new inspections and enforcement actions through ECHO Notify; enter NPDES ID ID0020401 there.
Nearby on the register
- Discharge permits in Saint Anthony
- Every permit record in Saint Anthony, A to Z
- Discharge permits in Idaho
- Every permit record in Idaho, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.