Clean Water Act discharge permit · NPDES MTR109589
HARLEM AIRPORT, Harlem, MT: NPDES MTR109589 discharge permit, effluent exceedances, inspections, penalties
- EffectivePermit status
- MinorDischarger class
- 0Pollutants under a numeric limit
- 0Pollutants with an effluent exceedance
HARLEM AIRPORT, held by CENTURY COMPANIES INC, holds NPDES permit MTR109589, which discharges to Forgey Creek. EPA’s file records it issued July 18, 2022 and expiring December 31, 2022. 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 HARLEM AIRPORT: its NPDES ID, its permit type and status, its dates, its address in Harlem, Montana, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTR109589.
Identity
| Facility as filed | HARLEM AIRPORT |
|---|---|
| Permittee as filed | CENTURY COMPANIES INC |
| NPDES ID | MTR109589 |
| 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 18, 2022 |
| Expiration date | December 31, 2022 |
| Address | Harlem, MT 59526 |
| Receiving water | FORGEY CREEK |
| Subwatershed | Lower Thirtymile Creek (HUC 100500040904) |
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 MTR109589.
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 MTR109589.
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 MTR109589 there.
Nearby on the register
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- Every permit record in Montana, A to Z
Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.