Clean Water Act discharge permit · NPDES MTG310002
R AND A OIL INC - STATE RATTLER #1, Mosby, MT: NPDES MTG310002 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 5Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
R AND A OIL INC - STATE RATTLER #1, held by R AND A OIL INC, holds NPDES permit MTG310002, which discharges to Holding Pond. EPA’s file records it issued August 5, 2010 and expiring April 30, 2015. 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 | R AND A OIL INC - STATE RATTLER #1 |
|---|---|
| Permittee as filed | R AND A OIL INC |
| NPDES ID | MTG310002 |
| 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 | August 5, 2010 |
| Expiration date | April 30, 2015 |
| Issuing agency | MONTANA DEQ |
| Address | Mosby, MT 59058 |
| Receiving water | HOLDING POND |
| Subwatershed | Johnson Coulee (HUC 100402030501) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 10Pollutants on file
- 5Under a numeric limit
- 10With 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 |
|---|---|---|---|---|---|
| Sulfate, total [as SO4] | 1 | 14 | 0 | ||
| Conductivity | 0 | 14 | 0 | ||
| Flow rate | 0 | 10 | 0 | ||
| Solids, total dissolved | 0 | 10 | 0 | ||
| Oil & Grease | 0 | 9 | 0 | ||
| Flow rate | 1 | 7 | 0 | ||
| Oil and grease, hexane extr method | 1 | 7 | 0 | ||
| Solids, total dissolved [TDS] | 1 | 7 | 0 | ||
| Sulfate | 0 | 7 | 0 | ||
| Specific conductance | 1 | 1 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MTG310002.
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 MTG310002.
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.
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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 MTG310002 there.
Nearby on the register
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- Every permit record in Mosby, A to Z
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- Every permit record in Montana, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 14, 2026.