Clean Water Act discharge permit · NPDES MTR109555
ROCKY BOYS WTP PAHSE 1 CONTRACT 2 3 MILLION GALLON TANK, Chester, MT: NPDES MTR109555 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
ROCKY BOYS WTP PAHSE 1 CONTRACT 2 3 MILLION GALLON TANK, held by MONTANA CIVIL CONTRACTORS INC, holds NPDES permit MTR109555, which discharges to Lake Elwell. EPA’s file records it issued May 13, 2022 and expiring December 31, 2022. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.
What the register holds for ROCKY BOYS WTP PAHSE 1 CONTRACT 2 3 MILLION GALLON TANK: its NPDES ID, its permit type and status, its dates, its address in Chester, Montana, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTR109555.
Identity
| Facility as filed | ROCKY BOYS WTP PAHSE 1 CONTRACT 2 3 MILLION GALLON TANK |
|---|---|
| Permittee as filed | MONTANA CIVIL CONTRACTORS INC |
| NPDES ID | MTR109555 |
| Permit status | Effective |
| Permit type | Coverage under a general permit |
| Discharger class | Minor discharger |
| Facility type | Not a publicly owned treatment works |
| Program | Construction stormwater |
| Issued | May 13, 2022 |
| Expiration date | December 31, 2022 |
| Address | Chester, MT 59522 |
| Receiving water | LAKE ELWELL |
| Subwatershed | Marias River-Smith Coulee (HUC 100302032102) |
| SIC | 1623 – Water, Sewer, And Utility Lines |
Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.
Effluent limits and exceedances
- 0Pollutants on file
- 0Under a numeric limit
- 0With a violation of any kind
- 0With an effluent exceedance
EPA’s limits and effluent violation files hold no pollutant row for NPDES MTR109555.
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 MTR109555.
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, MTR109555.
Start the watch
- One permit holder — $99/month
- One watershed — $2,990/year
- One state — $4,990/year
- The whole register — $18,000/year
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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 MTR109555 there.
Nearby on the register
- Discharge permits in Chester
- Every permit record in Chester, A to Z
- Discharge permits in Montana
- Every permit record in Montana, A to Z
Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.