Clean Water Act discharge permit · NPDES MTG310050
SLEEPY HOLLOW OIL AND GAS MANUEL 1 WELL, Winifred, MT: NPDES MTG310050 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 5Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
SLEEPY HOLLOW OIL AND GAS MANUEL 1 WELL, held by SLEEPY HOLLOW OIL AND GAS LLC, holds NPDES permit MTG310050, which discharges to Water Pit. EPA’s file records it issued October 12, 2010 and expiring April 30, 2015. 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 | SLEEPY HOLLOW OIL AND GAS MANUEL 1 WELL |
|---|---|
| Permittee as filed | SLEEPY HOLLOW OIL AND GAS LLC |
| NPDES ID | MTG310050 |
| 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 | October 12, 2010 |
| Expiration date | April 30, 2015 |
| Issuing agency | MONTANA DEQ |
| Address | Winifred, MT 59489 |
| Receiving water | WATER PIT |
| Subwatershed | Missouri River-Dauphin Rapids (HUC 100401011005) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 6Pollutants on file
- 5Under a numeric limit
- 6With 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 | 19 | 0 | ||
| Conductivity | 0 | 16 | 0 | ||
| Flow rate | 1 | 11 | 0 | ||
| Oil and grease, hexane extr method | 1 | 11 | 0 | ||
| Solids, total dissolved [TDS] | 1 | 11 | 0 | ||
| Specific conductance | 1 | 3 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MTG310050.
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 MTG310050.
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 MTG310050 there.
Nearby on the register
- Discharge permits in Winifred
- Every permit record in Winifred, A to Z
- Discharge permits in Montana
- Every permit record in Montana, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.