Clean Water Act discharge permit · NPDES WA0038075
RUSTLEWOOD STP, Shelton, WA: NPDES WA0038075 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 9Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
RUSTLEWOOD STP, held by Mason County Dept of Utilities & Waste Management, holds NPDES permit WA0038075. EPA’s file records it issued October 8, 2014 and expiring October 31, 2019. 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 | RUSTLEWOOD STP |
|---|---|
| Permittee as filed | Mason County Dept of Utilities & Waste Management |
| NPDES ID | WA0038075 |
| 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 | October 8, 2014 |
| Expiration date | October 31, 2019 |
| Issuing agency | State |
| Address | Shelton, WA 98584 |
| Program components on file | POTW, Pretreatment |
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
- 13Pollutants on file
- 9Under a numeric limit
- 10With a violation of any kind
- 7With 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 |
|---|---|---|---|---|---|
| Coliform, fecal general | 2 | 10 | 10 | July 31, 2025 | 99,999% over the limit |
| Solids, total suspended | 8 | 9 | 9 | November 30, 2012 | 405% over the limit |
| Chlorine, total residual | 4 | 9 | 6 | October 31, 2008 | 181% over the limit |
| Solids, suspended percent removal | 0 | 6 | 6 | November 30, 2012 | 107% over the limit |
| BOD, 5-day, 20 deg. C | 8 | 3 | 3 | November 30, 2012 | 99% over the limit |
| pH, minimum | 0 | 3 | 3 | February 28, 2013 | |
| BOD, percent removal [total] | 0 | 1 | 1 | August 31, 2008 | 13% over the limit |
| Nitrogen, ammonia total [as N] | 1 | 5 | 0 | ||
| pH | 2 | 2 | 0 | ||
| Enterococci | 0 | 1 | 0 | ||
| Flow | 4 | 0 | 0 | ||
| Temperature, water deg. centigrade | 2 | 0 | 0 | ||
| Rainfall | 2 | 0 | 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 WA0038075.
Velarion’s copy of EPA’s ICIS-NPDES files does not include the inspections, formal enforcement actions and informal enforcement actions files, so this page shows none of them. EPA’s free Detailed Facility Report on ECHO lists this permit’s inspections, enforcement actions and penalties.
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
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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 WA0038075 there.
Nearby on the register
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- 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 October 14, 2026.