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Clean Water Act discharge permit · NPDES MI0022730

COOPERSVILLE WWTP, Coopersville, MI: NPDES MI0022730 discharge permit, effluent exceedances, inspections, penalties

COOPERSVILLE WWTP, held by City of Coopersville, holds NPDES permit MI0022730. EPA’s file records it issued September 29, 2016 and expiring October 1, 2020. 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 filedCOOPERSVILLE WWTP
Permittee as filedCity of Coopersville
NPDES IDMI0022730
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 29, 2016
Expiration dateOctober 1, 2020
Issuing agencyState
AddressCoopersville, MI 49404
Receiving water impaired303(D) Listed
SubwatershedDear Creek (HUC 040500060704)
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
Coliform, fecal general22319July 31, 2021393% over the limit
Phosphorus, total [as P]62318June 30, 2026290% over the limit
Solids, total suspended41815April 30, 2022344% over the limit
BOD, carbonaceous [5 day, 20 C]4138July 31, 2021189% over the limit
Chlorine, total residual186November 30, 20171,847% over the limit
Copper, total [as Cu]044March 31, 2006178% over the limit
Solids, suspended percent removal233April 30, 202529% over the limit
pH262June 30, 2026
Oxygen, dissolved [DO]142July 31, 202197% over the limit
Mercury, total [as Hg]6390
Flow, in conduit or thru treatment plant270
Nitrogen, ammonia total [as N]250
Chloride [as Cl]020
Solids, total300
Arsenic, dry weight300
Selenium, dry weight300
Copper, dry weight300
Cadmium, dry weight300
Nitrogen, total Kjeldahl300
Molybdenum, sludge, total, dry weight [as Mo]300
Zinc, sludge, total, dry weight [as Zn]300
Lead, sludge, total, dry weight [as Pb]300
Nickel, sludge, total, dry weight [as Ni]300
Nitrogen, sludge, total, dry weight [as N]300
Mercury, sludge, total, dry weight [as Hg]300
Potassium, sludge, total, dry weight [as K]300
Phosphorus, sludge, total, dry weight [as P]300
BOD, carb-5 day, 20 deg C, 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
February 5, 2026Failure to enforce standards, local limits, and reporting requirements (>15% SNC SIU) (Level II)ST6
May 6, 2024Monitoring Violations - Failure to Monitor for Non-Toxicity RequirementsST6
August 23, 2023Monitoring Violations - Improper Analysis or Lab ErrorST6
August 23, 2023Management Practice Violations - Improper Operation and MaintenanceST6
August 23, 2023Monitoring Violations - Invalid/Unrepresentative SampleST6
June 28, 2023Monitoring Violations - Failure to Monitor for Non-Toxicity RequirementsST6
April 11, 2023Monitoring Violations - Analysis not ConductedST6
April 26, 2022Monitoring Violations - Frequency of Sampling ViolationST6
July 29, 2021Reporting Violations - Failure to NotifyST6
July 20, 2021WW SSO - Discharge to WatersST6
July 20, 2021Wet-weather SSO discharge to waters of the U.S. that may endanger health or the environmentST6
June 21, 2021Management Practice Violations - Failure to Maintain RecordsST6
December 22, 2020Management Practice Violations - Improper Operation and MaintenanceST6
March 28, 2020Reporting Violations - Failure to NotifyST6
March 22, 2020Monitoring Violations - Failure to Monitor for Non-Toxicity RequirementsST6
January 1, 2020Monitoring Violations - Failure to Monitor for Non-Toxicity RequirementsST6
September 14, 2019Monitoring Violations - Failure to Monitor for Non-Toxicity RequirementsST6
July 7, 2019Monitoring Violations - Failure to Monitor for Non-Toxicity RequirementsST6
July 7, 2019Reporting Violations - Failure to NotifyST6
July 1, 2019Management Practice Violations - Failure to Maintain RecordsST6
November 18, 2018Monitoring Violations - Failure to Monitor for Non-Toxicity RequirementsST6
November 18, 2018Reporting Violations - Failure to NotifyST6
October 26, 2018Monitoring Violations - Failure to Monitor for Non-Toxicity RequirementsST6
August 22, 2018Management Practice Violations - Improper Operation and MaintenanceST6
August 22, 2018Management Practice Violations - Failure to Maintain RecordsST6
August 22, 2018Monitoring Violations - Invalid/Unrepresentative SampleST6
August 22, 2018Monitoring Violations - Improper Analysis or Lab ErrorST6
August 22, 2018Reporting Violations - Failure to NotifyST6
September 1, 2017Reporting Violations - Failure to Submit DMRsST6
August 31, 2017Monitoring Violations - Analysis not ConductedST6
June 14, 2017Pretreatment - Failure to Establish Local LimitsST6
June 14, 2017Monitoring Violations - Failure to Monitor for Non-Toxicity RequirementsST6
June 14, 2017Failure to issue/reissue control mechanisms to at least 90% of SIU/CIUs w/in 6 months (Level II)ST6
May 9, 2017Reporting Violations - Failure to NotifyST6
April 16, 2017Reporting Violations - Failure to NotifyST6
January 1, 2017Monitoring Violations - Failure to Monitor for Non-Toxicity RequirementsST6

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 October 14, 2026.

What this page shows

This public-records page covers Clean Water Act discharge permit NPDES MI0022730 for the COOPERSVILLE WWTP in Coopersville, MI, held by the City of Coopersville and listed as administratively continued. The page lists 26 for the discharger class, 9 pollutants under a numeric limit, and 9 pollutants with an effluent exceedance.