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Clean Water Act discharge permit · NPDES MIG760088

BICENTENNIAL PARK - ANN ARBOR, Ann Arbor, MI: NPDES MIG760088 discharge permit, effluent exceedances, inspections, penalties

BICENTENNIAL PARK - ANN ARBOR, held by City of Ann Arbor, holds NPDES permit MIG760088, which discharges to Swift Drain. EPA’s file records it issued October 22, 2024 and expiring April 1, 2025. 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.

Identity

Facility as filedBICENTENNIAL PARK - ANN ARBOR
Permittee as filedCity of Ann Arbor
NPDES IDMIG760088
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
IssuedOctober 22, 2024
Expiration dateApril 1, 2025
Issuing agencyState
AddressAnn Arbor, MI 48108
Receiving waterSwift Drain
Receiving water impaired303(D) Listed
SubwatershedSwift Drain-Huron River (HUC 040900050402)

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

Effluent limits and exceedances

An effluent exceedance is a discharge monitoring report value over the permit’s numeric limit (EPA’s violation code E90). A violation of any kind also counts a report not filed. Each row is EPA’s own count for that pollutant.

Pollutant or measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
pH2380
Flow, in conduit or thru treatment plant2380
Chlorination duration2380
Oxidants, total residual3360
Chlorine, total residual0210
Outfall observation,visual, y/n response1190

EPA’s effluent violation file records no exceedance of a numeric limit for NPDES MIG760088.

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

DateWhat EPA recordedAgency
April 21, 2026Reporting Violations - Late Submittal of DMRsST6
March 21, 2026Reporting Violations - Late Submittal of DMRsST6
February 21, 2026Reporting Violations - Late Submittal of DMRsST6
January 21, 2026Reporting Violations - Late Submittal of DMRsST6
December 21, 2025Reporting Violations - Late Submittal of DMRsST6
November 21, 2025Reporting Violations - Late Submittal of DMRsST6
September 21, 2025Reporting Violations - Late Submittal of DMRsST6
August 21, 2025Reporting Violations - Late Submittal of DMRsST6
July 21, 2025Reporting Violations - Late Submittal of DMRsST6
June 21, 2025Reporting Violations - Late Submittal of DMRsST6
May 21, 2025Reporting Violations - Late Submittal of DMRsST6
April 21, 2025Reporting Violations - Late Submittal of DMRsST6
March 21, 2025Reporting Violations - Late Submittal of DMRsST6
February 21, 2025Reporting Violations - Late Submittal of DMRsST6
January 21, 2025Reporting Violations - Late Submittal of DMRsST6
December 21, 2024Reporting Violations - Late Submittal of DMRsST6
November 21, 2024Reporting Violations - Late Submittal of DMRsST6

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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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 MIG760088 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 Clean Water Act discharge permit NPDES MIG760088, held by City of Ann Arbor for the facility listed as BICENTENNIAL PARK - ANN ARBOR in Ann Arbor, MI, which discharges to Swift Drain within subwatershed HUC 040900050402. The permit is shown as administratively continued, with a minor discharger class of 5, zero pollutants under a numeric limit, and six pollutants on file, five of them under a numeric limit.