Clean Water Act discharge permit · NPDES NM0020532
RIO ALGOM MINING, LLC, Mckinley County, NM: NPDES NM0020532 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 12Pollutants under a numeric limit
- 4Pollutants with an effluent exceedance
RIO ALGOM MINING, LLC, held by RIO ALGOM MINING LLC, holds NPDES permit NM0020532, which discharges to Unnamed/Arroyo Dil Puerto. EPA’s file records it issued December 20, 2005 and expiring January 31, 2011. 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 | RIO ALGOM MINING, LLC |
|---|---|
| Permittee as filed | RIO ALGOM MINING LLC |
| NPDES ID | NM0020532 |
| 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 | December 20, 2005 |
| Expiration date | January 31, 2011 |
| Address | Mckinley County, NM 87020 |
| Receiving water | UNNAMED/ARROYO DIL PUERTO |
| Subwatershed | Martin Draw (HUC 130202070302) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 12Pollutants on file
- 12Under a numeric limit
- 12With a violation of any kind
- 4With 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 |
|---|---|---|---|---|---|
| Selenium, total [as Se] | 2 | 32 | 8 | September 30, 2007 | 14,592% over the limit |
| Alpha, total | 2 | 32 | 8 | September 30, 2007 | 250% over the limit |
| Solids, total suspended | 2 | 28 | 2 | August 31, 2007 | 110% over the limit |
| Radium 226, dissolved | 4 | 29 | 1 | April 30, 2000 | 170% over the limit |
| Oxygen demand, chem. [high level] [COD] | 4 | 32 | 0 | ||
| Zinc, total [as Zn] | 4 | 32 | 0 | ||
| Radium 226, total | 4 | 32 | 0 | ||
| Uranium, total as U3O8 | 4 | 30 | 0 | ||
| pH | 2 | 26 | 0 | ||
| Cadmium, total [as Cd] | 2 | 26 | 0 | ||
| Flow, in conduit or thru treatment plant | 2 | 26 | 0 | ||
| Vanadium, total [as V] | 2 | 22 | 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 NM0020532.
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 NM0020532 there.
Nearby on the register
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- Every permit record in New Mexico, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.