Clean Water Act discharge permit · NPDES MTG310085
STATE RATTLER 1 43-16, Mosby, MT: NPDES MTG310085 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 17Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
STATE RATTLER 1 43-16, held by R AND A OIL INC, holds NPDES permit MTG310085, which discharges to Unnamed Ephemeral Drainage In Johnson Coulee. EPA’s file records it issued September 8, 2025 and expiring November 30, 2026. 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 | STATE RATTLER 1 43-16 |
|---|---|
| Permittee as filed | R AND A OIL INC |
| NPDES ID | MTG310085 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | September 8, 2025 |
| Expiration date | November 30, 2026 |
| Address | Mosby, MT 59058 |
| Receiving water | Unnamed Ephemeral Drainage in Johnson Coulee |
| Subwatershed | Johnson Coulee (HUC 100402030501) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 17Pollutants on file
- 17Under a numeric limit
- 17With a violation of any kind
- 0With 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 |
|---|---|---|---|---|---|
| Flow rate | 2 | 2 | 0 | ||
| pH | 2 | 2 | 0 | ||
| Conductivity | 1 | 1 | 0 | ||
| Oil & Grease | 1 | 1 | 0 | ||
| Nitrogen, nitrite total [as N] | 1 | 1 | 0 | ||
| Nitrogen, nitrate total [as N] | 1 | 1 | 0 | ||
| Fluoride | 1 | 1 | 0 | ||
| Arsenic, total recoverable | 1 | 1 | 0 | ||
| Cobalt, total recoverable | 1 | 1 | 0 | ||
| Selenium, total recoverable | 1 | 1 | 0 | ||
| Zinc, total recoverable | 1 | 1 | 0 | ||
| Cadmium, total recoverable | 1 | 1 | 0 | ||
| Lead, total recoverable | 1 | 1 | 0 | ||
| Chromium, total recoverable | 1 | 1 | 0 | ||
| Copper, total recoverable | 1 | 1 | 0 | ||
| Solids, total dissolved [TDS] | 1 | 1 | 0 | ||
| Sulfate | 1 | 1 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MTG310085.
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 MTG310085.
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, MTG310085.
Start the watch
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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 MTG310085 there.
Nearby on the register
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.