Clean Water Act discharge permit · NPDES MTG770151
P66 CONOCO LATERAL, Billings, MT: NPDES MTG770151 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 4Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
P66 CONOCO LATERAL, held by WBI ENERGY TRANSMISSION INC, holds NPDES permit MTG770151, which discharges to Yellowstone River. EPA’s file records it issued September 2, 2026 and expiring August 31, 2031. 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.
What the register holds for P66 CONOCO LATERAL: its NPDES ID, its permit type and status, its dates, its address in Billings, Montana, its receiving water, and 4 pollutants under a numeric limit. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTG770151.
Identity
| Facility as filed | P66 CONOCO LATERAL |
|---|---|
| Permittee as filed | WBI ENERGY TRANSMISSION INC |
| NPDES ID | MTG770151 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Issued | September 2, 2026 |
| Expiration date | August 31, 2031 |
| Address | Billings, MT 59101 |
| Receiving water | YELLOWSTONE RIVER |
| Subwatershed | Yellowstone River-Billings (HUC 100700041006) |
Cited to the EPA ICIS-NPDES permit file (ECHO download).
Effluent limits and exceedances
- 4Pollutants on file
- 4Under a numeric limit
- 0With 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 |
|---|---|---|---|---|---|
| pH | 6 | 0 | 0 | ||
| Flow rate | 3 | 0 | 0 | ||
| Solids, total suspended | 3 | 0 | 0 | ||
| Chlorine, total residual | 3 | 0 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MTG770151.
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 MTG770151.
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 MTG770151 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.