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Clean Water Act discharge permit · NPDES MTR102521

CITY OF BILLINGS - ATHLETIC PARK SWIMMING POOL, Billings, MT: NPDES MTR102521 discharge permit, effluent exceedances, inspections, penalties

CITY OF BILLINGS - ATHLETIC PARK SWIMMING POOL, held by BILLINGS, CITY OF, holds NPDES permit MTR102521, which discharges to Municipal Storm Drain To Yellowstone River. EPA’s file records it issued March 21, 2007 and expiring December 31, 2007.

CITY OF BILLINGS - ATHLETIC PARK SWIMMING POOL, Billings, Montana: Coverage under a general permit MTR102521, held by BILLINGS, CITY OF; Construction stormwater; Administratively continued (past its expiration date and still in force until reissued); issued March 21, 2007, term to December 31, 2007, by MONTANA DEQ; discharges to MUNICIPAL STORM DRAIN TO YELLOWSTONE RIVER.

Montana holds 2,848 Construction stormwater coverages of this permit type in EPA’s file; 162 were issued before MTR102521.

Coverages issued nearest MTR102521

CITY OF BILLINGS - ATHLETIC PARK SWIMMING POOL among its neighbors

EPA’s permit file holds 157 discharge permits in the Yellowstone River-Billings subwatershed (HUC 100700041006), MTR102521 among them. Its county holds 431, 6 of them major permits; MTR102521 is a minor permit.

Other permits in the Yellowstone River-Billings subwatershed (HUC 100700041006)

What the register holds for CITY OF BILLINGS - ATHLETIC PARK SWIMMING POOL: 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 MTR102521.

Identity

Facility as filedCITY OF BILLINGS - ATHLETIC PARK SWIMMING POOL
Permittee as filedBILLINGS, CITY OF
NPDES IDMTR102521
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
IssuedMarch 21, 2007
Expiration dateDecember 31, 2007
Issuing agencyMONTANA DEQ
AddressBillings, MT 59101
Receiving waterMUNICIPAL STORM DRAIN TO YELLOWSTONE RIVER
SubwatershedYellowstone River-Billings (HUC 100700041006)

Effluent limits and exceedances

EPA’s limits and effluent violation files hold no pollutant row for NPDES MTR102521.

Inspections, violations and enforcement

EPA’s single-event violation file, as loaded, holds no violation for NPDES MTR102521.

Inspections

EPA’s inspection file holds no inspection for NPDES MTR102521.

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

EPA’s informal enforcement file holds no action for NPDES MTR102521.

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, MTR102521.

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Nearby on the register

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

What this page shows

Of all 253 storm water construction permits in Yellowstone County, counting CITY OF BILLINGS - ATHLETIC PARK SWIMMING POOL, 4.7% were issued before it. The Yellowstone River-Billings subwatershed (HUC 100700041006) holds 157 NPDES permits, and 5.0% of Yellowstone County's 262 storm water construction permits carry a violation on file.