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Clean Water Act discharge permit · NPDES MTR109699

56TH STREET SHOPS, Billings, MT: NPDES MTR109699 discharge permit, effluent exceedances, inspections, penalties

56TH STREET SHOPS, held by CAYTON EXCAVATION INC, holds NPDES permit MTR109699, which discharges to Yellowstone River. EPA’s file records it issued July 28, 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 56TH STREET SHOPS: 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 MTR109699.

Identity

Facility as filed56TH STREET SHOPS
Permittee as filedCAYTON EXCAVATION INC
NPDES IDMTR109699
Permit statusEffective
Permit typeCoverage under a general permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
ProgramConstruction stormwater
IssuedJuly 28, 2022
Expiration dateDecember 31, 2022
AddressBillings, MT 59101
Receiving waterYELLOWSTONE RIVER
SubwatershedYellowstone River-Broakway Creek (HUC 100700040604)

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 MTR109699.

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 MTR109699.

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.

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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 MTR109699 there.

Nearby on the register

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

What this page shows

This public-records page covers NPDES permit MTR109699 for 56TH STREET SHOPS in Billings, MT, held by CAYTON EXCAVATION INC and discharging to the YELLOWSTONE RIVER under a construction stormwater program. The register lists 0 pollutants under a numeric limit and 0 pollutants with an effluent exceedance, with the permit's status and dates as they stood when the record was loaded.