Clean Water Act discharge permit · NPDES WAG641029
HOFFMAN HILL WATER TREATMENT FACILITY, Dupont, WA: NPDES WAG641029 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 6Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
HOFFMAN HILL WATER TREATMENT FACILITY, held by City of DuPont, holds NPDES permit WAG641029. EPA’s file records it issued July 1, 2025 and expiring August 31, 2029. 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 | HOFFMAN HILL WATER TREATMENT FACILITY |
|---|---|
| Permittee as filed | City of DuPont |
| NPDES ID | WAG641029 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | July 1, 2025 |
| Expiration date | August 31, 2029 |
| Issuing agency | State |
| Address | Dupont, WA 98327 |
| Subwatershed | Nisqually River-Frontal Puget Sound (HUC 171100150307) |
| SIC | 4941 – Water Supply |
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
- 6Pollutants on file
- 6Under a numeric limit
- 6With a violation of any kind
- 0With 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 |
|---|---|---|---|---|---|
| Turbidity | 1 | 1 | 0 | ||
| pH | 1 | 1 | 0 | ||
| Solids, settleable | 1 | 1 | 0 | ||
| Chlorine, total residual | 1 | 1 | 0 | ||
| Number of Events | 1 | 1 | 0 | ||
| Volume, total | 1 | 1 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES WAG641029.
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 WAG641029.
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 WAG641029 there.
Nearby on the register
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- Every permit record in Dupont, 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.