Clean Water Act discharge permit · NPDES LA0127739
CLEAN HYDROGEN WORKS LA-1 LLC - ASCENSION CLEAN ENERGY PROJECT, Donaldsonville, LA: NPDES LA0127739 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MajorDischarger class
- 25Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
CLEAN HYDROGEN WORKS LA-1 LLC - ASCENSION CLEAN ENERGY PROJECT, held by Clean Hydrogen Works LA-1 LLC - Ascension Clean Energy Project, holds NPDES permit LA0127739. EPA’s file records it issued October 16, 2025 and expiring October 15, 2030. 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.
What the register holds for CLEAN HYDROGEN WORKS LA-1 LLC - ASCENSION CLEAN ENERGY PROJECT: its NPDES ID, its permit type and status, its dates, its address in Donaldsonville, Louisiana, and 25 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES LA0127739.
Identity
| Facility as filed | CLEAN HYDROGEN WORKS LA-1 LLC - ASCENSION CLEAN ENERGY PROJECT |
|---|---|
| Permittee as filed | Clean Hydrogen Works LA-1 LLC - Ascension Clean Energy Project |
| NPDES ID | LA0127739 |
| Permit status | Effective |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | October 16, 2025 |
| Expiration date | October 15, 2030 |
| Issuing agency | LDEQ |
| Address | Donaldsonville, LA 70346 |
| Subwatershed | Bayou Sigur-Rocky Canal (HUC 080903020301) |
| Other EPA IDs (FRS) | ICIS-AIR source LA0000002200500235 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 25Pollutants on file
- 25Under a numeric limit
- 0With 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 |
|---|---|---|---|---|---|
| Flow, in conduit or thru treatment plant | 16 | 0 | 0 | ||
| pH | 10 | 0 | 0 | ||
| Solids, total suspended | 8 | 0 | 0 | ||
| Nitrogen, total [as N] | 6 | 0 | 0 | ||
| Nitrogen, ammonia total [as N] | 6 | 0 | 0 | ||
| Phosphorus, total [as P] | 6 | 0 | 0 | ||
| Oil & Grease | 4 | 0 | 0 | ||
| Carbon, tot organic [TOC] | 4 | 0 | 0 | ||
| Whole effluent toxicity - retest #1 | 4 | 0 | 0 | ||
| Whole effluent toxicity - retest #2 | 4 | 0 | 0 | ||
| Whole Effluent Toxicity - Retest #3 | 4 | 0 | 0 | ||
| BOD, 5-day, 20 deg. C | 2 | 0 | 0 | ||
| Lead, total [as Pb] | 2 | 0 | 0 | ||
| Benzene | 2 | 0 | 0 | ||
| BTEX | 2 | 0 | 0 | ||
| Coliform, fecal general | 2 | 0 | 0 | ||
| Cooling Water Intake Velocity | 2 | 0 | 0 | ||
| Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex | 2 | 0 | 0 | ||
| LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas | 2 | 0 | 0 | ||
| NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex | 2 | 0 | 0 | ||
| NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas | 2 | 0 | 0 | ||
| pH range excursions, > 60 minutes | 1 | 0 | 0 | ||
| pH range excursions, monthly total accum | 1 | 0 | 0 | ||
| Coef Of Var Static Renewal 48Hr Acute D. pulex | 1 | 0 | 0 | ||
| Coef Of Var Static Renewal 48Hr Acute Pimephales promelas | 1 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES LA0127739.
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 LA0127739.
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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Start the watch
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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 LA0127739 there.
Nearby on the register
- Discharge permits in Donaldsonville
- Every permit record in Donaldsonville, A to Z
- Discharge permits in Louisiana
- Every permit record in Louisiana, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.