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Clean Water Act discharge permit · NPDES MI0022152

ADRIAN WWTP, Adrian, MI: NPDES MI0022152 discharge permit, effluent exceedances, inspections, penalties

ADRIAN WWTP, held by City of Adrian, holds NPDES permit MI0022152, which discharges to Raisin River South Branch. EPA’s file records it issued September 20, 2019 and expiring October 1, 2023. The status and dates are as EPA’s permit file stood when Velarion loaded it (October 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedADRIAN WWTP
Permittee as filedCity of Adrian
NPDES IDMI0022152
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMajor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedSeptember 20, 2019
Expiration dateOctober 1, 2023
Issuing agencyState
AddressAdrian, MI 49221
Receiving waterRaisin River South Branch
SubwatershedSouth Branch River Raisin (HUC 041000020206)
Program components on fileBiosolids, POTW
NAICS221320 – Sewage Treatment Facilities
SIC4952 – Sewerage Systems

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same 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
pH2182December 31, 2022
Coliform, fecal general2182June 30, 201524,395% over the limit
Phosphorus, total [as P]4240
Flow, in conduit or thru treatment plant2240
Nitrogen, ammonia total [as N]16200
Solids, total suspended8160
BOD, 5-day, 20 deg. C0160
Mercury, total [as Hg]6120
Solids, total380
Arsenic, dry weight380
Selenium, dry weight380
Copper, dry weight380
Cadmium, dry weight380
Nitrogen, total Kjeldahl380
Molybdenum, sludge, total, dry weight [as Mo]380
Zinc, sludge, total, dry weight [as Zn]380
Lead, sludge, total, dry weight [as Pb]380
Nickel, sludge, total, dry weight [as Ni]380
Nitrogen, sludge, total, dry weight [as N]380
Mercury, sludge, total, dry weight [as Hg]380
Potassium, sludge, total, dry weight [as K]380
Phosphorus, sludge, total, dry weight [as P]380
Toxicity [acute], Ceriodaphnia dubia060
BOD, carbonaceous [5 day, 20 C]1640
Oxygen, dissolved [DO]240
Chlorine, total residual040
Toxicity, choice of species010
Cyanide [A]400
BOD, carb-5 day, 20 deg C, percent removal200
Solids, suspended percent removal200

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
August 19, 2025Management Practice Violations - Improper Operation and MaintenanceST6
June 2, 2025Management Practice Violations - Failure to Maintain RecordsST6
January 8, 2025Management Practice Violations - Failure to Maintain RecordsST6
October 22, 2024Management Practice Violations - Failure to Maintain RecordsST6
April 2, 2024Management Practice Violations - Failure to Maintain RecordsST6
February 13, 2024Failure to enforce standards, local limits, and reporting requirements (>15% SNC SIU) (Level II)ST6
March 15, 2022Management Practice Violations - Improper Operation and MaintenanceST6
March 15, 2022WW SSO - Failure to report violation that may endanger public health 122.41(l)(7)ST6
March 15, 2022PR: Failure to submit noncompliance report - CSO, SSO, or Bypass [40 CFR 122.41(l)(6) & (m)(3)(ii)]ST6
July 24, 2021WW SSO - Discharge to WatersST6
July 24, 2021Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environmentST6

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 MI0022152 there.

Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded October 14, 2026.

What this page shows

This public-records page covers NPDES permit MI0022152 for the ADRIAN WWTP in Adrian, MI, held by City of Adrian, which discharges to the Raisin River South Branch within the South Branch River Raisin watershed (HUC 041000020206). The permit is listed as administratively continued and a Major Discharger class, with 2 pollutants under a numeric limit and 26 pollutants with an effluent exceedance noted on file.