Clean Water Act discharge permit · NPDES MTG070972
W.O. 15-35:ZONE 1 WTP WATERLINE IMPROVEMENTS, Billings, MT: NPDES MTG070972 discharge permit, effluent exceedances, inspections, penalties
- Administratively continuedPermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
W.O. 15-35:ZONE 1 WTP WATERLINE IMPROVEMENTS, held by WESTERN MUNICIPAL CONSTRUCTION INC, holds NPDES permit MTG070972, which discharges to Yellowstone River. EPA’s file records it issued February 3, 2020 and expiring February 29, 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 | W.O. 15-35:ZONE 1 WTP WATERLINE IMPROVEMENTS |
|---|---|
| Permittee as filed | WESTERN MUNICIPAL CONSTRUCTION INC |
| NPDES ID | MTG070972 |
| 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 | February 3, 2020 |
| Expiration date | February 29, 2020 |
| 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
- 5Pollutants on file
- 0Under a numeric limit
- 5With 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 |
|---|---|---|---|---|---|
| Turbidity | 0 | 11 | 0 | ||
| Oil & Grease | 0 | 3 | 0 | ||
| Flowing, Receiving Stream | 0 | 3 | 0 | ||
| Oil and grease visual | 0 | 2 | 0 | ||
| Outfall observation,visual, y/n response | 0 | 2 | 0 |
EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MTG070972.
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 MTG070972.
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 MTG070972 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.