Clean Water Act discharge permit · NPDES MTG310065
SECTION 8 LEASE, Oilmont, MT: NPDES MTG310065 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 5Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
SECTION 8 LEASE, held by SOMONT OIL COMPANY INC, holds NPDES permit MTG310065, which discharges to Unnamed Alkali Flat. EPA’s file records it issued April 17, 2019 and expiring April 30, 2020. 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 | SECTION 8 LEASE |
|---|---|
| Permittee as filed | SOMONT OIL COMPANY INC |
| NPDES ID | MTG310065 |
| Permit status | Administratively continued (past its expiration date and still in force until reissued) |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | April 17, 2019 |
| Expiration date | April 30, 2020 |
| Address | Oilmont, MT 59466 |
| Receiving water | Unnamed Alkali Flat |
| Subwatershed | Kevin (HUC 100302030301) |
| SIC | 1311 – Crude Petroleum And Natural Gas |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 7Pollutants on file
- 5Under a numeric limit
- 7With 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 |
|---|---|---|---|---|---|
| Oil & Grease | 0 | 6 | 6 | June 30, 2026 | 380% over the limit |
| Conductivity | 2 | 6 | 0 | ||
| Sulfate, total [as SO4] | 2 | 6 | 0 | ||
| Flow rate | 1 | 3 | 0 | ||
| Oil and grease, hexane extr method | 1 | 3 | 0 | ||
| Solids, total dissolved [TDS] | 1 | 3 | 0 | ||
| Fluoride | 0 | 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
- 3Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| November 7, 2024 | Effluent Violations - Narrative Effluent Violation | ST6 |
| November 7, 2024 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| November 7, 2024 | Management Practice Violations - Failure to Maintain Records | 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, MTG310065.
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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 MTG310065 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 October 14, 2026.