Clean Water Act discharge permit · NPDES AR0048950
UMETCO MINERALS CORPORATION - FORMER WILSON MINE AREA, Hot Springs, AR: NPDES AR0048950 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 22Pollutants under a numeric limit
- 6Pollutants with an effluent exceedance
UMETCO MINERALS CORPORATION - FORMER WILSON MINE AREA, held by UMETCO MINERALS CORPORATION d/b/a FORMER WILSON MINE AREA, holds NPDES permit AR0048950, which discharges to Wilson Cr,Lake Catherine,Ouachita R. EPA’s file records it issued February 7, 2018 and expiring March 31, 2023. 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 | UMETCO MINERALS CORPORATION - FORMER WILSON MINE AREA |
|---|---|
| Permittee as filed | UMETCO MINERALS CORPORATION d/b/a FORMER WILSON MINE AREA |
| NPDES ID | AR0048950 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | February 7, 2018 |
| Expiration date | March 31, 2023 |
| Address | Hot Springs, AR 71901 |
| Receiving water | WILSON CR,LAKE CATHERINE,OUACHITA R |
| Subwatershed | Lake Hamilton Dam (HUC 080401010806) |
| NAICS | 562910 – Remediation Services |
| SIC | 4959 – Sanitary Services |
| Other EPA IDs (FRS) | RCRA handler ARR000002246 |
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
- 23Pollutants on file
- 22Under a numeric limit
- 21With a violation of any kind
- 6With 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 |
|---|---|---|---|---|---|
| Sulfate, total [as SO4] | 2 | 90 | 88 | December 31, 2012 | 1,311% over the limit |
| Solids, total dissolved | 2 | 92 | 86 | September 30, 2012 | 168% over the limit |
| Whole Effluent Toxicity [WET] - C. dubia | 4 | 10 | 10 | September 30, 2022 | 99,999% over the limit |
| Zinc, total recoverable | 2 | 5 | 1 | March 31, 2010 | 8% over the limit |
| pH | 2 | 3 | 1 | May 31, 2009 | |
| Whole Effluent Toxicity [WET] - P. promelas | 8 | 1 | 1 | June 30, 2025 | 20% over the limit |
| Beryllium, total recoverable [as Be] | 0 | 8 | 0 | ||
| Chloride [as Cl] | 2 | 4 | 0 | ||
| Arsenic, total recoverable | 2 | 4 | 0 | ||
| Cadmium, total recoverable | 2 | 4 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 4 | 0 | ||
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 1 | 0 | ||
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | 2 | 1 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 1 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 2 | 1 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 1 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 1 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 2 | 1 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 2 | 1 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia | 2 | 1 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Pimephales promelas | 2 | 1 | 0 | ||
| Whole effluent toxicity | 4 | 0 | 0 | ||
| Vanadium, total recoverable | 2 | 0 | 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 AR0048950.
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 AR0048950 there.
Nearby on the register
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- Every permit record in Arkansas, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.