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Clean Water Act discharge permit · NPDES MI0020729

BRONSON WWTP, Bronson, MI: NPDES MI0020729 discharge permit, effluent exceedances, inspections, penalties

BRONSON WWTP, held by City of Bronson, holds NPDES permit MI0020729, which discharges to County Drain No 30. EPA’s file records it issued May 31, 2019 and expiring October 1, 2023. 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 filedBRONSON WWTP
Permittee as filedCity of Bronson
NPDES IDMI0020729
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedMay 31, 2019
Expiration dateOctober 1, 2023
Issuing agencyState
AddressBronson, MI 49028
Receiving waterCounty Drain No 30
Receiving water impaired303(D) Listed
SubwatershedCorey Lake-Swan Creek (HUC 040500010401)

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
BOD, carbonaceous [5 day, 20 C]1216420April 30, 2025141% over the limit
Solids, suspended percent removal2116December 31, 2021207% over the limit
Nitrogen, ammonia total [as N]101035May 31, 2026550% over the limit
Coliform, fecal general2375March 31, 2026127% over the limit
Oxygen, dissolved [DO]2215June 30, 202625% over the limit
Phosphorus, total [as P]6952February 28, 2026920% over the limit
Lithium, total [as Li]0640
Solids, total suspended12600
Perfluorooctanoic acid (PFOA)4400
Perfluorooctanesulfonate4400
Flow, in conduit or thru treatment plant2340
pH2320
Toxicity, choice of species070
Toxicity [acute], Ceriodaphnia dubia070
TU Static 24 Hr Acute Pimephales promelas070
Static 48 Hr Chronic Pimphales Promelas070
Solids, total330
Arsenic, dry weight330
Selenium, dry weight330
Copper, dry weight330
Cadmium, dry weight330
Nitrogen, total Kjeldahl330
Molybdenum, sludge, total, dry weight [as Mo]330
Zinc, sludge, total, dry weight [as Zn]330
Lead, sludge, total, dry weight [as Pb]330
Nickel, sludge, total, dry weight [as Ni]330
Nitrogen, sludge, total, dry weight [as N]330
Mercury, sludge, total, dry weight [as Hg]330
Potassium, sludge, total, dry weight [as K]330
Phosphorus, sludge, total, dry weight [as P]330
Toxicity [chronic], Ceriodaphnia dubia010

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
June 24, 2024Failure to enforce standards, local limits, and reporting requirements (>15% SNC SIU) (Level II)ST6
October 31, 2023Reporting Violations - Late Submittal of DMRsST6
August 21, 2023Reporting Violations - Late Submittal of DMRsST6
April 20, 2023Permit Violations - Discharge Without a Valid PermitST6
March 3, 2021Pretreatment - Failure to Develop/Enforce StandardsST6
March 3, 2021Monitoring Violations - Invalid/Unrepresentative SampleST6
March 3, 2021Failure to enforce standards, local limits, and reporting requirements (>15% SNC SIU) (Level II)ST6
October 28, 2020Monitoring Violations - Invalid/Unrepresentative SampleST6
October 21, 2019Reporting Violations - Late Submittal of DMRsST6
October 31, 2018Reporting Violations - Late Submittal of DMRsST6
August 8, 2018Effluent Violations - Narrative Effluent ViolationST6

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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Nearby on the register

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

What this page shows

This public-records page covers the Clean Water Act discharge permit NPDES MI0020729 for BRONSON WWTP in Bronson, MI, held by City of Bronson, which discharges to County Drain No 30 and is administratively continued. The facts list 31 pollutants on file, 25 under a numeric limit, and 6 with an effluent exceedance.