Clean Water Act discharge permit · NPDES MTR111712

48TH & CENTRAL, Billings, MT: NPDES MTR111712 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
0Pollutants under a numeric limit
0Pollutants with an effluent exceedance

48TH & CENTRAL, held by KNIFE RIVER - BILLINGS, holds NPDES permit MTR111712, which discharges to Yellowstone River. EPA’s file records it issued March 13, 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 48TH & CENTRAL: 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 MTR111712.

Identity

Facility as filed	48TH & CENTRAL
Permittee as filed	KNIFE RIVER - BILLINGS
NPDES ID	MTR111712
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	March 13, 2026
Expiration date	December 31, 2027
Address	Billings, MT 59106
Receiving water	YELLOWSTONE RIVER
Subwatershed	Yellowstone River-Billings (HUC 100700041006)

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 MTR111712.

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 MTR111712.

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, MTR111712.

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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 MTR111712 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

The 48TH & CENTRAL storm water construction permit (NPDES ID MTR111712), held by KNIFE RIVER - BILLINGS, is one of 262 such permits in Yellowstone County, this one included, and it sits among 157 NPDES permits in the Yellowstone River-Billings subwatershed. Of all 253 storm water construction permits in Yellowstone County, this one included, 92.1% carry an earlier issue date than this permit, and across the 262 county permits, 5.0% have a violation on file. This permit has no pollutants under a numeric limit and no effluent exceedances on record.