Clean Water Act discharge permit · NPDES MI0001414

MMPA-CONSTANTINE PLANT, Constantine, MI: NPDES MI0001414 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
7Pollutants under a numeric limit
6Pollutants with an effluent exceedance
3Inspections on file
0Formal enforcement actions

MMPA-CONSTANTINE PLANT, held by Marc Hopkins, holds NPDES permit MI0001414, which discharges to St Joseph River. EPA’s file records it issued January 25, 2013 and expiring October 1, 2016.

MMPA-CONSTANTINE PLANT, Constantine, Michigan: Individual permit MI0001414, held by Marc Hopkins; Administratively continued (past its expiration date and still in force until reissued); issued January 25, 2013, term to October 1, 2016, by State; discharges to St Joseph River; Creamery Butter Manufacturing.

Solids, total suspended: 0 limits, 31 violations of any kind, 31 effluent exceedances, latest July 31, 2026, largest 894% over the limit.
BOD, 5-day, 20 deg. C: 0 limits, 11 violations of any kind, 11 effluent exceedances, latest July 31, 2026, largest 350% over the limit.
pH: 2 limits, 118 violations of any kind, 8 effluent exceedances, latest June 30, 2026.
Phosphorus, total [as P]: 1 limit, 66 violations of any kind, 6 effluent exceedances, latest July 31, 2026, largest 77% over the limit.
Oxygen, dissolved [DO]: 1 limit, 58 violations of any kind, 3 effluent exceedances, latest July 31, 2026, largest 97% over the limit.
Chloride [as Cl]: 0 limits, 3 violations of any kind, 1 effluent exceedance, latest January 31, 2026, largest 4% over the limit.
Temperature, water deg. fahrenheit: 2 limits, 116 violations of any kind, 0 effluent exceedances.
Flow, in conduit or thru treatment plant: 2 limits, 112 violations of any kind, 0 effluent exceedances.
BOD, carbonaceous [5 day, 20 C]: 2 limits, 110 violations of any kind, 0 effluent exceedances.
Outfall observation,visual, y/n response: 1 limit, 59 violations of any kind, 0 effluent exceedances.
Mercury, total [as Hg]: 0 limits, 6 violations of any kind, 0 effluent exceedances.

October 14, 2026: Evaluation (E).
September 9, 2026: Notice of Violation (State).
May 1, 2026: Evaluation (S).
April 24, 2026: Letter of Violation/ Warning Letter (State).
April 21, 2026: Failure to develop, maintain, or get approval of an adequate SWPPP (industrial stormwater) (ST6).
March 24, 2026: Evaluation (S).
November 21, 2025: Reporting Violations - Late Submittal of DMRs (ST6).
October 21, 2025: Reporting Violations - Late Submittal of DMRs (ST6).
September 21, 2025: Reporting Violations - Late Submittal of DMRs (ST6).
August 21, 2025: Reporting Violations - Late Submittal of DMRs (ST6).
July 21, 2025: Reporting Violations - Late Submittal of DMRs (ST6).
June 21, 2025: Reporting Violations - Late Submittal of DMRs (ST6).
October 21, 2024: Reporting Violations - Late Submittal of DMRs (ST6).
September 21, 2023: Reporting Violations - Late Submittal of DMRs (ST6).
September 21, 2022: Reporting Violations - Late Submittal of DMRs (ST6).
August 21, 2022: Reporting Violations - Late Submittal of DMRs (ST6).
July 21, 2022: Reporting Violations - Late Submittal of DMRs (ST6).
April 21, 2022: Reporting Violations - Late Submittal of DMRs (ST6).
December 21, 2021: Reporting Violations - Late Submittal of DMRs (ST6).
June 21, 2021: Reporting Violations - Late Submittal of DMRs (ST6).
May 21, 2021: Reporting Violations - Late Submittal of DMRs (ST6).
April 21, 2021: Reporting Violations - Late Submittal of DMRs (ST6).
February 21, 2021: Reporting Violations - Late Submittal of DMRs (ST6).
December 21, 2020: Reporting Violations - Late Submittal of DMRs (ST6).
October 21, 2020: Reporting Violations - Late Submittal of DMRs (ST6).
July 21, 2020: Reporting Violations - Late Submittal of DMRs (ST6).
April 21, 2020: Reporting Violations - Late Submittal of DMRs (ST6).
October 21, 2019: Reporting Violations - Late Submittal of DMRs (ST6).
July 18, 2019: Monitoring Violations - Improper Analysis or Lab Error (ST6).
February 21, 2019: Reporting Violations - Late Submittal of DMRs (ST6).
January 21, 2019: Reporting Violations - Late Submittal of DMRs (ST6).
October 21, 2018: Reporting Violations - Late Submittal of DMRs (ST6).
September 21, 2018: Reporting Violations - Late Submittal of DMRs (ST6).
August 21, 2018: Reporting Violations - Late Submittal of DMRs (ST6).
July 21, 2018: Reporting Violations - Late Submittal of DMRs (ST6).
June 21, 2018: Reporting Violations - Late Submittal of DMRs (ST6).
May 21, 2018: Reporting Violations - Late Submittal of DMRs (ST6).
April 21, 2018: Reporting Violations - Late Submittal of DMRs (ST6).
March 21, 2018: Reporting Violations - Late Submittal of DMRs (ST6).
February 21, 2018: Reporting Violations - Late Submittal of DMRs (ST6).
January 21, 2018: Reporting Violations - Late Submittal of DMRs (ST6).
December 21, 2017: Reporting Violations - Late Submittal of DMRs (ST6).
November 21, 2017: Reporting Violations - Late Submittal of DMRs (ST6).
October 21, 2017: Reporting Violations - Late Submittal of DMRs (ST6).
September 21, 2017: Reporting Violations - Late Submittal of DMRs (ST6).
August 21, 2017: Reporting Violations - Late Submittal of DMRs (ST6).
July 21, 2017: Reporting Violations - Late Submittal of DMRs (ST6).
May 21, 2017: Reporting Violations - Late Submittal of DMRs (ST6).
March 21, 2017: Reporting Violations - Late Submittal of DMRs (ST6).
February 21, 2017: Reporting Violations - Late Submittal of DMRs (ST6).
January 21, 2017: Reporting Violations - Late Submittal of DMRs (ST6).

MMPA-CONSTANTINE PLANT among its neighbors

EPA’s permit file holds 4 discharge permits in the Fawn River Drain-Fawn River subwatershed (HUC 040500010809), MI0001414 among them. Its county holds 14, 0 of them major permits; MI0001414 is a minor permit.

Other permits in the Fawn River Drain-Fawn River subwatershed (HUC 040500010809)

AMRIZE BUILDING ENVELOPE LLC-ST. JOSEPH, Constantine: MIG250282, minor permit, discharging to Fawn River, permit term to April 1, 2023
MMPA-CONSTANTINE PLANT, Constantine: MIS211183, minor permit, discharging to St Joseph River, permit term to April 1, 2022
OX PAPERBOARD MICH LLC, Constantine: MIS210982, minor permit, discharging to Fawn River, permit term to March 31, 2027

Identity

Facility as filed	MMPA-CONSTANTINE PLANT
Permittee as filed	Marc Hopkins
NPDES ID	MI0001414
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	January 25, 2013
Expiration date	October 1, 2016
Issuing agency	State
Address	Constantine, MI 49042
Receiving water	St Joseph River
Receiving water impaired	303(D) Listed
Subwatershed	Fawn River Drain-Fawn River (HUC 040500010809)
NAICS	311512 – Creamery Butter Manufacturing
SIC	2021 – Creamery Butter
Other EPA IDs (FRS)	RCRA handler MIK788419133

Effluent limits and exceedances

11Pollutants on file
7Under a numeric limit
11With a violation of any kind
6With 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
Solids, total suspended	0	31	31	July 31, 2026	894% over the limit
BOD, 5-day, 20 deg. C	0	11	11	July 31, 2026	350% over the limit
pH	2	118	8	June 30, 2026
Phosphorus, total [as P]	1	66	6	July 31, 2026	77% over the limit
Oxygen, dissolved [DO]	1	58	3	July 31, 2026	97% over the limit
Chloride [as Cl]	0	3	1	January 31, 2026	4% over the limit
Temperature, water deg. fahrenheit	2	116	0
Flow, in conduit or thru treatment plant	2	112	0
BOD, carbonaceous [5 day, 20 C]	2	110	0
Outfall observation,visual, y/n response	1	59	0
Mercury, total [as Hg]	0	6	0

Inspections, violations and enforcement

46Single-event violations

Date	What EPA recorded	Agency
April 21, 2026	Failure to develop, maintain, or get approval of an adequate SWPPP (industrial stormwater)	ST6
November 21, 2025	Reporting Violations - Late Submittal of DMRs	ST6
October 21, 2025	Reporting Violations - Late Submittal of DMRs	ST6
September 21, 2025	Reporting Violations - Late Submittal of DMRs	ST6
August 21, 2025	Reporting Violations - Late Submittal of DMRs	ST6
July 21, 2025	Reporting Violations - Late Submittal of DMRs	ST6
June 21, 2025	Reporting Violations - Late Submittal of DMRs	ST6
October 21, 2024	Reporting Violations - Late Submittal of DMRs	ST6
September 21, 2023	Reporting Violations - Late Submittal of DMRs	ST6
September 21, 2022	Reporting Violations - Late Submittal of DMRs	ST6
August 21, 2022	Reporting Violations - Late Submittal of DMRs	ST6
July 21, 2022	Reporting Violations - Late Submittal of DMRs	ST6
April 21, 2022	Reporting Violations - Late Submittal of DMRs	ST6
December 21, 2021	Reporting Violations - Late Submittal of DMRs	ST6
June 21, 2021	Reporting Violations - Late Submittal of DMRs	ST6
May 21, 2021	Reporting Violations - Late Submittal of DMRs	ST6
April 21, 2021	Reporting Violations - Late Submittal of DMRs	ST6
February 21, 2021	Reporting Violations - Late Submittal of DMRs	ST6
December 21, 2020	Reporting Violations - Late Submittal of DMRs	ST6
October 21, 2020	Reporting Violations - Late Submittal of DMRs	ST6
July 21, 2020	Reporting Violations - Late Submittal of DMRs	ST6
April 21, 2020	Reporting Violations - Late Submittal of DMRs	ST6
October 21, 2019	Reporting Violations - Late Submittal of DMRs	ST6
July 18, 2019	Monitoring Violations - Improper Analysis or Lab Error	ST6
February 21, 2019	Reporting Violations - Late Submittal of DMRs	ST6
January 21, 2019	Reporting Violations - Late Submittal of DMRs	ST6
October 21, 2018	Reporting Violations - Late Submittal of DMRs	ST6
September 21, 2018	Reporting Violations - Late Submittal of DMRs	ST6
August 21, 2018	Reporting Violations - Late Submittal of DMRs	ST6
July 21, 2018	Reporting Violations - Late Submittal of DMRs	ST6
June 21, 2018	Reporting Violations - Late Submittal of DMRs	ST6
May 21, 2018	Reporting Violations - Late Submittal of DMRs	ST6
April 21, 2018	Reporting Violations - Late Submittal of DMRs	ST6
March 21, 2018	Reporting Violations - Late Submittal of DMRs	ST6
February 21, 2018	Reporting Violations - Late Submittal of DMRs	ST6
January 21, 2018	Reporting Violations - Late Submittal of DMRs	ST6
December 21, 2017	Reporting Violations - Late Submittal of DMRs	ST6
November 21, 2017	Reporting Violations - Late Submittal of DMRs	ST6
October 21, 2017	Reporting Violations - Late Submittal of DMRs	ST6
September 21, 2017	Reporting Violations - Late Submittal of DMRs	ST6
August 21, 2017	Reporting Violations - Late Submittal of DMRs	ST6
July 21, 2017	Reporting Violations - Late Submittal of DMRs	ST6
May 21, 2017	Reporting Violations - Late Submittal of DMRs	ST6
March 21, 2017	Reporting Violations - Late Submittal of DMRs	ST6
February 21, 2017	Reporting Violations - Late Submittal of DMRs	ST6
January 21, 2017	Reporting Violations - Late Submittal of DMRs	ST6

Inspections

Date	What EPA recorded	Agency
October 14, 2026	Evaluation	E
May 1, 2026	Evaluation	S
March 24, 2026	Evaluation	S

Formal enforcement and penalties

0 formal actions, 0 of them with a penalty assessed. Federal and state penalties are separate figures from separate authorities and are shown as each was filed, never added together.

Informal enforcement

Date	What EPA recorded	Agency
September 9, 2026	Notice of Violation	State
April 24, 2026	Letter of Violation/ Warning Letter	State

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

This public-records page covers Clean Water Act discharge permit NPDES MI0001414 for the MMPA-CONSTANTINE PLANT in Constantine, MI, which discharges to the St Joseph River and is administratively continued, with a permit status of Minor Discharger class 7. The page lists 6 pollutants under a numeric limit and 6 pollutants with an effluent exceedance.