Clean Water Act discharge permit · NPDES COG589104
HUDSON MECHANICAL WWTF, Weld County, CO: NPDES COG589104 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 11Pollutants under a numeric limit
- 7Pollutants with an effluent exceedance
HUDSON MECHANICAL WWTF, held by Hudson WWTF, holds NPDES permit COG589104, which discharges to Box Elder Creek. EPA’s file records it issued August 4, 2009 and expiring October 31, 2010. 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 | HUDSON MECHANICAL WWTF |
|---|---|
| Permittee as filed | Hudson WWTF |
| NPDES ID | COG589104 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | August 4, 2009 |
| Expiration date | October 31, 2010 |
| Address | Weld County, CO 80642 |
| Receiving water | Box Elder Creek |
| Subwatershed | Jim Creek-Box Elder Creek (HUC 101900030803) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 12Pollutants on file
- 11Under a numeric limit
- 12With 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 |
|---|---|---|---|---|---|
| Nitrogen, ammonia total [as N] | 24 | 76 | 62 | June 30, 2024 | 966% over the limit |
| Solids, total suspended | 4 | 67 | 52 | June 30, 2024 | 287% over the limit |
| Solids, suspended percent removal | 1 | 36 | 31 | June 30, 2024 | 287% over the limit |
| E. coli | 2 | 35 | 23 | April 30, 2023 | 15,664% over the limit |
| BOD, 5-day, 20 deg. C | 6 | 34 | 12 | September 30, 2024 | 300% over the limit |
| pH | 2 | 15 | 4 | March 31, 2023 | |
| Chlorine, total residual | 2 | 13 | 3 | November 30, 2011 | 10,216% over the limit |
| Flow, in conduit or thru treatment plant | 10 | 26 | 0 | ||
| Oil and grease | 1 | 5 | 0 | ||
| BOD, 5-day, percent removal | 1 | 5 | 0 | ||
| Oil and grease visual | 1 | 5 | 0 | ||
| Plant capacity fact. percent of capacity | 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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| August 21, 2024 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| August 21, 2024 | Management Practice Violations - Improper Operation and Maintenance | ST6 |
| August 21, 2024 | Monitoring Violations - Invalid/Unrepresentative Sample | ST6 |
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 COG589104 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.