Clean Water Act discharge permit · NPDES NM0022306
CHEVRON MINING INC., Questa, NM: NPDES NM0022306 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MajorDischarger class
- 35Pollutants under a numeric limit
- 10Pollutants with an effluent exceedance
CHEVRON MINING INC. holds NPDES permit NM0022306, which discharges to Red River/Rio Grande Basin. EPA’s file records it issued August 29, 2006 and expiring September 30, 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 | CHEVRON MINING INC. |
|---|---|
| Permittee as filed | CHEVRON MINING INC. |
| NPDES ID | NM0022306 |
| 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 | August 29, 2006 |
| Expiration date | September 30, 2011 |
| Address | Questa, NM 87556 |
| Receiving water | RED RIVER/RIO GRANDE BASIN |
| Receiving water impaired | 303(D) Listed |
| Subwatershed | Middle Red River (HUC 130201010303) |
| Other EPA IDs (FRS) | RCRA handler NMD002899094; ICIS-AIR source NM0000003505500004 |
Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.
Effluent limits and exceedances
- 38Pollutants on file
- 35Under a numeric limit
- 29With a violation of any kind
- 10With 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 |
|---|---|---|---|---|---|
| Aluminum, total [as Al] | 12 | 13 | 13 | October 31, 2024 | 572% over the limit |
| Copper, total [as Cu] | 12 | 12 | 4 | October 31, 2024 | 2,855% over the limit |
| Zinc, total [as Zn] | 12 | 8 | 4 | October 31, 2024 | 1,300% over the limit |
| Solids, total suspended | 12 | 4 | 4 | August 31, 2022 | 3,045% over the limit |
| Chlorine, total residual | 4 | 4 | 4 | October 31, 2024 | 1,953% over the limit |
| Cadmium, total [as Cd] | 16 | 7 | 3 | August 31, 2022 | 14,186% over the limit |
| pH | 8 | 3 | 3 | October 31, 2024 | |
| Fluoride, total [as F] | 8 | 2 | 2 | March 31, 2019 | 180% over the limit |
| Manganese, total [as Mn] | 8 | 2 | 2 | June 30, 2021 | 726% over the limit |
| Iron, total [as Fe] | 4 | 1 | 1 | January 31, 2004 | 67% over the limit |
| Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex | 4 | 20 | 0 | ||
| NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex | 4 | 20 | 0 | ||
| Coef Of Var Static Renewal 48Hr Acute D. pulex | 4 | 20 | 0 | ||
| Whole effluent toxicity - retest #2 | 10 | 19 | 0 | ||
| Whole effluent toxicity - retest #1 | 10 | 18 | 0 | ||
| LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas | 0 | 8 | 0 | ||
| NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas | 0 | 8 | 0 | ||
| Coef Of Var Static Renewal 48Hr Acute Pimephales promelas | 0 | 8 | 0 | ||
| Molybdenum, total [as Mo] | 8 | 7 | 0 | ||
| Cyanide, total [as CN] | 8 | 4 | 0 | ||
| Mercury, total [as Hg] | 12 | 3 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 3 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 3 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 3 | 0 | ||
| Arsenic, total [as As] | 12 | 2 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia | 4 | 2 | 0 | ||
| Coef Of Var Static Renewal 7Day Chronic Pimephales promelas | 4 | 2 | 0 | ||
| Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia | 4 | 1 | 0 | ||
| Pass/Fail Static Renewal 7Day Chronic Pimephales promelas | 4 | 1 | 0 | ||
| Lead, total [as Pb] | 12 | 0 | 0 | ||
| Oxygen demand, chem. [high level] [COD] | 8 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 8 | 0 | 0 | ||
| Silver, total [as Ag] | 4 | 0 | 0 | ||
| Chlordane [tech mix. and metabolites] | 4 | 0 | 0 | ||
| Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas | 4 | 0 | 0 | ||
| NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas | 4 | 0 | 0 | ||
| NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas | 4 | 0 | 0 | ||
| Alpha, total | 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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| December 7, 2024 | Dry-weather SSO discharge to waters of the U.S. that may endanger health or the environment | EP6 |
| October 18, 2024 | Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environment | EP6 |
| November 1, 2019 | Effluent Violations - Failed Toxicity Test | EP6 |
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.
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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 NM0022306 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.