Clean Water Act discharge permit · NPDES MI0054771

DARLING INGREDIENTS INC, Hamilton, MI: NPDES MI0054771 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
14Pollutants under a numeric limit
7Pollutants with an effluent exceedance

DARLING INGREDIENTS INC, held by Darling Ingredients Inc., holds NPDES permit MI0054771. EPA’s file records it issued August 9, 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 filed	DARLING INGREDIENTS INC
Permittee as filed	Darling Ingredients Inc.
NPDES ID	MI0054771
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Not a publicly owned treatment works
Issued	August 9, 2016
Expiration date	October 1, 2020
Issuing agency	State
Address	Hamilton, MI 49419
Receiving water impaired	303(D) Listed
Subwatershed	Peach Orchid Creek-Kalamazoo River (HUC 040500030911)
NAICS	311613 – Rendering and Meat Byproduct Processing
SIC	2077 – Animal And Marine Fats And Oils

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

16Pollutants on file
14Under a numeric limit
15With a violation of any kind
7With an effluent exceedance

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 measure	Limits	Violations, any kind	Effluent exceedances	Latest exceedance	Largest exceedance, as filed
Phosphorus, total [as P]	2	16	5	September 30, 2014	58% over the limit
Nitrogen, ammonia total [as N]	2	30	4	March 31, 2023	51% over the limit
pH	2	97	3	August 31, 2023
Coliform, fecal general	1	37	1	August 31, 2020	15% over the limit
Solids, total suspended	2	27	1	August 31, 2022	34% over the limit
Oil & Grease	2	25	1	April 30, 2007	0% over the limit
Nitrogen, total [as N]	4	1	1	February 28, 2023	3% over the limit
Flow, in conduit or thru treatment plant	4	122	0
Temperature, water deg. fahrenheit	4	77	0
Oxygen, dissolved [DO]	1	47	0
Chlorine, total residual	1	47	0
Outfall observation,visual, y/n response	1	47	0
BOD, 5-day, 20 deg. C	2	26	0
Chloride [as Cl]	0	1	0
Sulfate, total [as SO4]	0	1	0
Thermal Discharge	1	0	0

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

7Single-event violations

Date	What EPA recorded	Agency
March 23, 2021	Management Practice Violations - Best Management Practice Deficiencies	ST6
March 23, 2021	Failure to eliminate or relocate industrial stormwater outfalls from identified sensitive areas	ST6
March 23, 2021	Other noncompliance related to industrial stormwater discharges	ST6
March 22, 2021	Management Practice Violations - Improper Operation and Maintenance	ST6
March 22, 2021	WW Storm Water Non-Construction - Failure to develop any or adequate SWPPP/SWMP	ST6
July 16, 2019	Permit Violations - Discharge Without a Valid Permit	ST6
July 16, 2019	Monitoring Violations - Improper Analysis or Lab Error	ST6

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.

This public-records page covers Clean Water Act discharge permit NPDES MI0054771, held by DARLING INGREDIENTS INC in Hamilton, MI, which is administratively continued, classed as a Minor Discharger, and lists 14 pollutants under a numeric limit and 7 pollutants with an effluent exceedance. The permit was issued August 9, 2016 and carried an expiration date of October 1, 2020, with the status as loaded on October 14, 2026.