Clean Water Act discharge permit · NPDES MTG310055
VECTA OIL AND GAS - HEBERLE 33-28 WELL, Custer, MT: NPDES MTG310055 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 5Pollutants under a numeric limit
- 1Pollutants with an effluent exceedance
VECTA OIL AND GAS - HEBERLE 33-28 WELL, held by VECTA OIL AND GAS LTD, holds NPDES permit MTG310055, which discharges to Unnamed Ephemeral Drainage. EPA’s file records it issued May 14, 2015 and expiring April 30, 2020. 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 | VECTA OIL AND GAS - HEBERLE 33-28 WELL |
|---|---|
| Permittee as filed | VECTA OIL AND GAS LTD |
| NPDES ID | MTG310055 |
| 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 | May 14, 2015 |
| Expiration date | April 30, 2020 |
| Address | Custer, MT 59024 |
| Receiving water | UNNAMED EPHEMERAL DRAINAGE |
| Subwatershed | Butte Creek (HUC 101000010105) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 20Pollutants on file
- 5Under a numeric limit
- 20With 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 | 3 | 1 | December 31, 2024 | 480% over the limit |
| Flow rate | 1 | 7 | 0 | ||
| Conductivity | 2 | 6 | 0 | ||
| Sulfate, total [as SO4] | 2 | 5 | 0 | ||
| Solids, total dissolved [TDS] | 1 | 5 | 0 | ||
| pH | 0 | 4 | 0 | ||
| Oil and grease, hexane extr method | 1 | 3 | 0 | ||
| Fluoride | 0 | 3 | 0 | ||
| Nitrogen, nitrite total [as N] | 0 | 2 | 0 | ||
| Nitrogen, nitrate total [as N] | 0 | 2 | 0 | ||
| Arsenic, total recoverable | 0 | 2 | 0 | ||
| Cobalt, total recoverable | 0 | 2 | 0 | ||
| Selenium, total recoverable | 0 | 2 | 0 | ||
| Zinc, total recoverable | 0 | 2 | 0 | ||
| Cadmium, total recoverable | 0 | 2 | 0 | ||
| Lead, total recoverable | 0 | 2 | 0 | ||
| Chromium, total recoverable | 0 | 2 | 0 | ||
| Copper, total recoverable | 0 | 2 | 0 | ||
| Sulfate | 0 | 2 | 0 | ||
| Specific conductance | 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
- 2Single-event violations
| Date | What EPA recorded | Agency |
|---|---|---|
| January 19, 2024 | Reporting Violations - Improper/ Incorrect Reporting | ST6 |
| January 19, 2024 | 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
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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 MTG310055 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.