Clean Water Act discharge permit · NPDES MTX000138
MT DEPT OF TRANSPORTATION - DENA MORA REST AREA, Saltese, MT: NPDES MTX000138 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 8Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
MT DEPT OF TRANSPORTATION - DENA MORA REST AREA, held by MONTANA DEPT OF TRANSPORTATION, holds NPDES permit MTX000138, which discharges to State Groundwater. EPA’s file records it issued December 6, 2002 and expiring December 31, 2007. 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 | MT DEPT OF TRANSPORTATION - DENA MORA REST AREA |
|---|---|
| Permittee as filed | MONTANA DEPT OF TRANSPORTATION |
| NPDES ID | MTX000138 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | State-issued individual permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | December 6, 2002 |
| Expiration date | December 31, 2007 |
| Issuing agency | MONTANA DEQ |
| Address | Saltese, MT 59867 |
| Receiving water | STATE GROUNDWATER |
| Subwatershed | St. Regis River Headwaters (HUC 170102040801) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 15Pollutants on file
- 8Under a numeric limit
- 15With a violation of any kind
- 1With 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 |
|---|---|---|---|---|---|
| Nitrogen, total [as N] | 2 | 69 | 62 | September 30, 2025 | 378% over the limit |
| Phosphorus, total [as P] | 2 | 14 | 0 | ||
| Nitrogen, Kjeldahl, total [as N] | 1 | 8 | 0 | ||
| Nitrite + Nitrate total [as N] | 1 | 8 | 0 | ||
| pH | 0 | 8 | 0 | ||
| Nitrogen, ammonia total [as N] | 1 | 6 | 0 | ||
| Conductivity | 0 | 6 | 0 | ||
| Flow rate | 0 | 4 | 0 | ||
| Water level at sample collection time | 0 | 4 | 0 | ||
| Solids, total suspended | 1 | 3 | 0 | ||
| BOD, 5-day, 20 deg. C | 1 | 2 | 0 | ||
| Carbon, tot organic [TOC] | 0 | 2 | 0 | ||
| Chloride [as Cl] | 0 | 2 | 0 | ||
| Solids, total dissolved [TDS] | 0 | 2 | 0 | ||
| Flow rate | 1 | 1 | 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
- 1Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| June 26, 2018 | Monitoring Violations - Invalid/Unrepresentative Sample | ST6 |
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, MTX000138.
Start the watch
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- One watershed — $2,990/year
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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 MTX000138 there.
Nearby on the register
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- Every permit record in Montana, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.