Clean Water Act discharge permit · NPDES MTR111942
HIGH SIERRA SUBDIVISION 23RD FILING, Billings, MT: NPDES MTR111942 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
HIGH SIERRA SUBDIVISION 23RD FILING, held by K2 Civil, Inc., holds NPDES permit MTR111942, which discharges to Lake Elmo. EPA’s file records it issued July 16, 2026 and expiring December 31, 2027. 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 HIGH SIERRA SUBDIVISION 23RD FILING: its NPDES ID, its permit type and status, its dates, its address in Billings, Montana, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTR111942.
Identity
| Facility as filed | HIGH SIERRA SUBDIVISION 23RD FILING |
|---|---|
| Permittee as filed | K2 Civil, Inc. |
| NPDES ID | MTR111942 |
| 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 | July 16, 2026 |
| Expiration date | December 31, 2027 |
| Address | Billings, MT 59105 |
| Receiving water | LAKE ELMO |
| Subwatershed | Fivemile Creek (HUC 100700070401) |
Cited to the EPA ICIS-NPDES permit file (ECHO 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 MTR111942.
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 MTR111942.
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 MTR111942 there.
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Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.