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Clean Water Act discharge permit · NPDES MTR109815

STILLWATER COUNTY FAIRGROUNDS, Columbus, MT: NPDES MTR109815 discharge permit, effluent exceedances, inspections, penalties

STILLWATER COUNTY FAIRGROUNDS, held by K2 Civil, Inc., holds NPDES permit MTR109815, which discharges to Columbus Water Users Association Ditch. EPA’s file records it issued September 30, 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 STILLWATER COUNTY FAIRGROUNDS: its NPDES ID, its permit type and status, its dates, its address in Columbus, Montana, its receiving water. EPA’s effluent violation file and its single-event violation file hold no violation for NPDES MTR109815.

Identity

Facility as filedSTILLWATER COUNTY FAIRGROUNDS
Permittee as filedK2 Civil, Inc.
NPDES IDMTR109815
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedSeptember 30, 2022
Expiration dateDecember 31, 2022
AddressColumbus, MT 59019
Receiving waterCOLUMBUS WATER USERS ASSOCIATION DITCH
SubwatershedYellowstone River-Quinn Coulee (HUC 100700040305)
SIC1542 – Nonresidential Construction

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

EPA’s limits and effluent violation files hold no pollutant row for NPDES MTR109815.

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

EPA’s single-event violation file, as loaded, holds no violation for NPDES MTR109815.

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, MTR109815.

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How often?
  • One permit holder — $99/month
  • One watershed — $2,990/year
  • One state — $4,990/year
  • The whole register — $18,000/year

How we handle your data → Privacy

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 MTR109815 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

What this page shows

The STILLWATER COUNTY FAIRGROUNDS permit, held by K2 Civil, Inc. under NPDES ID MTR109815, is one of 3 NPDES permits in the Yellowstone River-Quinn Coulee subwatershed, including this one. Among the 24 storm water construction permits on the register in Stillwater County, this one is one of the 24 listed, and 0.0% of those 24 carry a violation on file. The permit records zero pollutants under a numeric limit and zero pollutants with an effluent exceedance.