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Clean Water Act discharge permit · NPDES MTR111255

P-812 ANNAFELD 6TH FILING PHASE 1, Billings, MT: NPDES MTR111255 discharge permit, effluent exceedances, inspections, penalties

P-812 ANNAFELD 6TH FILING PHASE 1, held by MCCALL DEVELOPMENT, holds NPDES permit MTR111255, which discharges to Yellowstone River. EPA’s file records it issued April 16, 2025 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 P-812 ANNAFELD 6TH FILING PHASE 1: 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 MTR111255.

Identity

Facility as filedP-812 ANNAFELD 6TH FILING PHASE 1
Permittee as filedMCCALL DEVELOPMENT
NPDES IDMTR111255
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedApril 16, 2025
Expiration dateDecember 31, 2027
AddressBillings, MT 59101
Receiving waterYELLOWSTONE RIVER
SubwatershedYellowstone River-Billings (HUC 100700041006)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES MTR111255.

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 MTR111255.

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, MTR111255.

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  • One permit holder — $99/month
  • One watershed — $2,990/year
  • One state — $4,990/year
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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 MTR111255 there.

Nearby on the register

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

What this page shows

P-812 ANNAFELD 6TH FILING PHASE 1, a Storm Water Construction general permit coverage held by MCCALL DEVELOPMENT in Billings, is one of 262 such permits in Yellowstone County and one of 157 NPDES permits in the Yellowstone River-Billings subwatershed. The permit has no pollutants under a numeric limit and no pollutants with an effluent exceedance on record.