Clean Water Act discharge permit · NPDES ID0020931
RIGGINS,L CITY OF - RIGGINS WWTP, Riggins, ID: NPDES ID0020931 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
- 0Inspections on file
- 0Formal enforcement actions
RIGGINS,L CITY OF - RIGGINS WWTP, held by RIGGINS, CITY OF, holds NPDES permit ID0020931, which discharges to Salmon River. EPA’s file records it issued November 17, 2003 and expiring November 24, 2008. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | RIGGINS,L CITY OF - RIGGINS WWTP |
|---|---|
| Permittee as filed | RIGGINS, CITY OF |
| NPDES ID | ID0020931 |
| 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 | November 17, 2003 |
| Expiration date | November 24, 2008 |
| Address | Riggins, ID 83549 |
| Receiving water | SALMON RIVER |
| Subwatershed | Berg Creek-Salmon River (HUC 170602090206) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 14Pollutants on file
- 9Under a numeric limit
- 14With a violation of any kind
- 6With 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 |
|---|---|---|---|---|---|
| Solids, total suspended | 5 | 375 | 9 | April 30, 2023 | 3,312% over the limit |
| Flow, in conduit or thru treatment plant | 2 | 107 | 7 | October 31, 2002 | 729% over the limit |
| BOD, 5-day, 20 deg. C | 5 | 361 | 4 | April 30, 2013 | 130% over the limit |
| Chlorine, total residual | 4 | 178 | 3 | January 31, 2023 | 124% over the limit |
| pH | 2 | 153 | 2 | April 30, 2013 | |
| Solids, suspended percent removal | 1 | 69 | 2 | April 30, 2023 | 287% over the limit |
| E. coli | 2 | 70 | 0 | ||
| BOD, 5-day, percent removal | 1 | 67 | 0 | ||
| Coliform, fecal MF, MFC broth, 44.5 C | 0 | 61 | 0 | ||
| Nitrogen, ammonia total [as N] | 1 | 21 | 0 | ||
| Temperature, water deg. centigrade | 0 | 10 | 0 | ||
| Floating solids, waste or visible foam-visual | 0 | 10 | 0 | ||
| Oil and grease visual | 0 | 9 | 0 | ||
| E. coli, MTEC-MF | 0 | 3 | 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 ID0020931.
Inspections
EPA’s inspection file holds no inspection for NPDES ID0020931.
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 ID0020931.
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, ID0020931.
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 ID0020931 there.
Nearby on the register
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.