Clean Water Act discharge permit · NPDES NN0028193
NAVAJO MINE, San Juan County, NM: NPDES NN0028193 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 24Pollutants under a numeric limit
- 2Pollutants with an effluent exceedance
NAVAJO MINE, held by Navajo Nation Transitional Energy Company (NTEC), LLC, holds NPDES permit NN0028193, which discharges to Morgan Lake And Chaco River. EPA’s file records it issued March 5, 2018 and expiring April 30, 2023. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
Identity
| Facility as filed | NAVAJO MINE |
|---|---|
| Permittee as filed | Navajo Nation Transitional Energy Company (NTEC), LLC |
| NPDES ID | NN0028193 |
| 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 | March 5, 2018 |
| Expiration date | April 30, 2023 |
| Address | San Juan County, NM |
| Receiving water | MORGAN LAKE AND CHACO RIVER |
| Subwatershed | Pinabete Arroyo (HUC 140801061806) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 24Pollutants on file
- 24Under a numeric limit
- 12With a violation of any kind
- 2With 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 | 124 | 4 | 4 | December 31, 2013 | 500% over the limit |
| Iron, total recoverable | 368 | 1 | 1 | December 31, 2013 | 37% over the limit |
| Phosphorous, total recoverable | 4 | 14 | 0 | ||
| Hardness, total [as CaCO3] | 4 | 14 | 0 | ||
| Nitrogen, Total | 4 | 14 | 0 | ||
| Manganese, total recoverable | 368 | 4 | 0 | ||
| Sulfate, total [as SO4] | 368 | 2 | 0 | ||
| Arsenic, total [as As] | 368 | 2 | 0 | ||
| Boron, total [as B] | 368 | 2 | 0 | ||
| Cadmium, total [as Cd] | 368 | 2 | 0 | ||
| Lead, total [as Pb] | 368 | 2 | 0 | ||
| Selenium, total [as Se] | 368 | 2 | 0 | ||
| pH | 368 | 0 | 0 | ||
| Arsenic, dissolved [as As] | 368 | 0 | 0 | ||
| Boron, dissolved [as B] | 368 | 0 | 0 | ||
| Cadmium, dissolved [as Cd] | 368 | 0 | 0 | ||
| Lead, dissolved [as Pb] | 368 | 0 | 0 | ||
| Selenium, dissolved [as Se] | 368 | 0 | 0 | ||
| Flow, in conduit or thru treatment plant | 368 | 0 | 0 | ||
| Mercury, dissolved [as Hg] | 368 | 0 | 0 | ||
| Mercury, total [as Hg] | 368 | 0 | 0 | ||
| Solids, total dissolved [TDS] | 344 | 0 | 0 | ||
| Solids, settleable | 182 | 0 | 0 | ||
| Solids, total dissolved | 24 | 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 NN0028193.
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
One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, NN0028193.
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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 NN0028193 there.
Nearby on the register
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- Every permit record in San Juan County, A to Z
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- Every permit record in New Mexico, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.