Clean Water Act discharge permit · NPDES WA0023345
SHELTON STP, Shelton, WA: NPDES WA0023345 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 0Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
- 2Inspections on file
- 0Formal enforcement actions
SHELTON STP, held by City of Shelton, holds NPDES permit WA0023345. EPA’s file records it issued March 14, 2008 and expiring March 31, 2013. 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 | SHELTON STP |
|---|---|
| Permittee as filed | City of Shelton |
| NPDES ID | WA0023345 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | March 14, 2008 |
| Expiration date | March 31, 2013 |
| Issuing agency | State |
| Address | Shelton, WA 98584 |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Cranberry Creek-Frontal Oakland Bay (HUC 171100190606) |
| Other EPA IDs (FRS) | RCRA handler WAH000024428 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 15Pollutants on file
- 0Under a numeric limit
- 15With a violation of any kind
- 4With 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 |
|---|---|---|---|---|---|
| Chlorine, total residual | 0 | 25 | 23 | July 31, 2011 | 115% over the limit |
| Solids, suspended percent removal | 0 | 16 | 10 | April 30, 2011 | 147% over the limit |
| Solids, total suspended | 0 | 250 | 7 | October 31, 2019 | 72% over the limit |
| BOD, 5-day, 20 deg. C | 0 | 482 | 6 | January 31, 2011 | 45% over the limit |
| Coliform, fecal general | 0 | 240 | 0 | ||
| Nitrogen, ammonia total [as N] | 0 | 120 | 0 | ||
| BOD, percent removal [total] | 0 | 29 | 0 | ||
| Oxygen, dissolved [DO] | 0 | 2 | 0 | ||
| Oil and grease [soxhlet extr.] tot. | 0 | 2 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 0 | 2 | 0 | ||
| Nitrite + Nitrate total [as N] | 0 | 2 | 0 | ||
| Phosphorus, total [as P] | 0 | 2 | 0 | ||
| Hardness, total [as CaCO3] | 0 | 2 | 0 | ||
| Solids, total dissolved | 0 | 2 | 0 | ||
| Flow | 0 | 2 | 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 WA0023345.
Inspections
| Date | What EPA recorded | Agency |
|---|---|---|
| September 15, 2026 | Evaluation | S |
| May 18, 2026 | Evaluation | S |
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
| Date | What EPA recorded | Agency |
|---|---|---|
| January 28, 2026 | Agency Enforcement Review | State |
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, WA0023345.
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 WA0023345 there.
Nearby on the register
- Discharge permits in Shelton
- Every permit record in Shelton, A to Z
- Discharge permits in Washington
- Every permit record in Washington, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.