Clean Water Act discharge permit · NPDES WA0021130
GRANITE FALLS STP, Granite Falls, WA: NPDES WA0021130 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 2Pollutants with an effluent exceedance
GRANITE FALLS STP, held by City Of Granite Falls, holds NPDES permit WA0021130. EPA’s file records it issued June 30, 2020 and expiring July 31, 2025. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | GRANITE FALLS STP |
|---|---|
| Permittee as filed | City Of Granite Falls |
| NPDES ID | WA0021130 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Publicly owned treatment works |
| Program | Publicly owned treatment works |
| Issued | June 30, 2020 |
| Expiration date | July 31, 2025 |
| Issuing agency | State |
| Address | Granite Falls, WA 98252 |
| Subwatershed | Upper Pilchuc River (HUC 171100110101) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 19Pollutants on file
- 0Under a numeric limit
- 19With a violation of any kind
- 2With 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 | 0 | 374 | 6 | January 31, 2026 | 33% over the limit |
| Solids, suspended percent removal | 0 | 39 | 2 | January 31, 2026 | 27% over the limit |
| BOD, 5-day, 20 deg. C | 0 | 368 | 0 | ||
| pH | 0 | 113 | 0 | ||
| Coliform, fecal general | 0 | 113 | 0 | ||
| Flow | 0 | 113 | 0 | ||
| Temperature, water deg. centigrade | 0 | 37 | 0 | ||
| Hardness, total [as CaCO3] | 0 | 37 | 0 | ||
| BOD, percent removal [total] | 0 | 37 | 0 | ||
| Oxygen, dissolved [DO] | 0 | 8 | 0 | ||
| Oil and grease, hexane extr method | 0 | 8 | 0 | ||
| Solids, total dissolved | 0 | 8 | 0 | ||
| Nitrogen, ammonia total [as N] | 0 | 3 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 0 | 3 | 0 | ||
| Nitrite + Nitrate total [as N] | 0 | 3 | 0 | ||
| Phosphorus, total [as P] | 0 | 3 | 0 | ||
| Phosphorus, dissolved reactive [drp as P] | 0 | 3 | 0 | ||
| Copper, total [as Cu] | 0 | 3 | 0 | ||
| Zinc, total [as Zn] | 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 WA0021130.
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 WA0021130 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.