Clean Water Act discharge permit · NPDES AR0000523
U.S. VANADIUM, LLC, Hot Springs, AR: NPDES AR0000523 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 34Pollutants under a numeric limit
- 12Pollutants with an effluent exceedance
U.S. VANADIUM, LLC holds NPDES permit AR0000523, which discharges to Trib,Lake Catherine,Ouachita R. EPA’s file records it issued January 28, 2016 and expiring January 31, 2021. 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 | U.S. VANADIUM, LLC |
|---|---|
| Permittee as filed | U.S. VANADIUM, LLC |
| NPDES ID | AR0000523 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Major discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | January 28, 2016 |
| Expiration date | January 31, 2021 |
| Address | Hot Springs, AR 71901 |
| Receiving water | TRIB,LAKE CATHERINE,OUACHITA R |
| Subwatershed | Lake Hamilton Dam (HUC 080401010806) |
| NAICS | 212291 – Uranium-Radium-Vanadium Ore Mining |
| SIC | 1094 – Uranium-Radium-Vanadium Ores |
| Other EPA IDs (FRS) | RCRA handler ARD990742934; ICIS-AIR source AR0000000505100002 |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 43Pollutants on file
- 34Under a numeric limit
- 43With a violation of any kind
- 12With 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 | 10 | 102 | 24 | April 30, 2025 | 2,500% over the limit |
| Whole effluent toxicity | 24 | 62 | 16 | September 30, 2016 | 99,999% over the limit |
| Discharge flow as % of stream flow | 1 | 11 | 7 | October 31, 2014 | 62% over the limit |
| pH | 8 | 14 | 6 | November 30, 2009 | |
| Copper, total recoverable | 8 | 10 | 4 | April 30, 2025 | 310% over the limit |
| Coliform, fecal general | 0 | 6 | 4 | March 31, 2006 | 400% over the limit |
| Nickel, total recoverable | 8 | 10 | 2 | April 30, 2025 | 85% over the limit |
| Cadmium, total recoverable | 6 | 6 | 2 | April 30, 2025 | 104% over the limit |
| Zinc, total recoverable | 4 | 6 | 2 | April 30, 2025 | 334% over the limit |
| Arsenic, total [as As] | 0 | 2 | 2 | September 30, 2008 | 0% over the limit |
| Sulfate, total [as SO4] | 6 | 97 | 1 | April 30, 2025 | 26% over the limit |
| Lead, total recoverable | 4 | 3 | 1 | April 30, 2025 | 66% over the limit |
| Nitrogen, ammonia total [as N] | 4 | 95 | 0 | ||
| Vanadium, total [as V] | 4 | 90 | 0 | ||
| Phosphorus, total [as P] | 0 | 84 | 0 | ||
| Chloride [as Cl] | 0 | 80 | 0 | ||
| Flow, in conduit or thru treatment plant | 8 | 10 | 0 | ||
| Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex | 1 | 8 | 0 | ||
| LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas | 1 | 8 | 0 | ||
| NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex | 1 | 8 | 0 | ||
| NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas | 1 | 8 | 0 | ||
| Coef Of Var Static Renewal 48Hr Acute D. pulex | 1 | 8 | 0 | ||
| Coef Of Var Static Renewal 48Hr Acute Pimephales promelas | 1 | 8 | 0 | ||
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | 3 | 7 | 0 | ||
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | 3 | 7 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 3 | 7 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 3 | 7 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 3 | 7 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 3 | 7 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 3 | 7 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 3 | 7 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia | 3 | 7 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Pimephales promelas | 3 | 7 | 0 | ||
| Beryllium, total recoverable [as Be] | 4 | 4 | 0 | ||
| Streamflow | 2 | 4 | 0 | ||
| Rainfall | 2 | 4 | 0 | ||
| Selenium, total recoverable | 2 | 2 | 0 | ||
| Mercury, total recoverable | 2 | 2 | 0 | ||
| Cadmium, total [as Cd] | 0 | 2 | 0 | ||
| Copper, total [as Cu] | 0 | 2 | 0 | ||
| Lead, total [as Pb] | 0 | 2 | 0 | ||
| Nickel, total [as Ni] | 0 | 2 | 0 | ||
| Discharge event observation [Visual Monitoring] | 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
- 0Single-event violations
EPA’s single-event violation file, as loaded, holds no violation for NPDES AR0000523.
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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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 AR0000523 there.
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Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.