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Clean Water Act discharge permit · NPDES MI0002020

HOLCIM US INC-DUNDEE, Dundee, MI: NPDES MI0002020 discharge permit, effluent exceedances, inspections, penalties

HOLCIM US INC-DUNDEE, held by Holcim (US) Incorporated, holds NPDES permit MI0002020, which discharges to North Branch Macon Creek. EPA’s file records it issued August 31, 2020 and expiring October 1, 2024. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 14, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filedHOLCIM US INC-DUNDEE
Permittee as filedHolcim (US) Incorporated
NPDES IDMI0002020
Permit statusEffective
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedAugust 31, 2020
Expiration dateOctober 1, 2024
Issuing agencyState
AddressDundee, MI 48131
Receiving waterNorth Branch Macon Creek
Receiving water impaired303(D) Listed
SubwatershedMacon Creek (HUC 041000020408)

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
Hydrogen sulfide0467155February 28, 201064,344% over the limit
Coliform, fecal general023747September 30, 2020766% over the limit
Oxygen, dissolved [DO]21076October 31, 200851% over the limit
Solids, total suspended84095January 31, 2008522% over the limit
pH42122March 31, 2007
Sulfide, dissolved, [as S]321041April 30, 202668% over the limit
Chlorine, total residual0311March 31, 20095% over the limit
Hydrogen peroxide221May 31, 202426% over the limit
Flow, in conduit or thru treatment plant42080
Strontium, total [as Sr]21690
Temperature, water deg. fahrenheit21070
Conductivity21050
Outfall observation,visual, y/n response21040
Selenium, total [as Se]2980
Solids, total dissolved2940
Toxicity [acute], Ceriodaphnia dubia2540
Toxicity, choice of species4530
Static 48 Hr Chronic Pimphales Promelas4250
TU Static 24 Hr Acute Pimephales promelas2250
Copper, total [as Cu]0230
Sulfate, total [as SO4]2210
Boron, total [as B]0100
TU Static 24 Hr Acute Daphnia magna060
Static 48 Hr Chronic Daphnia Magna060
Chloride [as Cl]200

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 21, 2023Reporting Violations - Late Submittal of DMRsST6
August 21, 2022Reporting Violations - Late Submittal of DMRsST6
February 21, 2022Reporting Violations - Late Submittal of DMRsST6
August 18, 2021Effluent Violations - Narrative Effluent ViolationST6
January 21, 2020Reporting Violations - Late Submittal of DMRsST6
August 21, 2019Reporting Violations - Late Submittal of DMRsST6
May 21, 2019Reporting Violations - Late Submittal of DMRsST6
January 21, 2019Reporting Violations - Late Submittal of DMRsST6
November 21, 2018Reporting Violations - Late Submittal of DMRsST6
May 21, 2018Reporting Violations - Late Submittal of DMRsST6
January 21, 2018Reporting 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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How we handle your data → Privacy

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 MI0002020 there.

Nearby on the register

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