Clean Water Act discharge permit · NPDES IA0081965

ASSOCIATED MILK PRODUCERS, INC. - SANBORN, Sanborn, IA: NPDES IA0081965 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
8Pollutants under a numeric limit
7Pollutants with an effluent exceedance
0Inspections on file
0Formal enforcement actions

ASSOCIATED MILK PRODUCERS, INC. - SANBORN, held by ASSOCIATED MILK PRODUCERS, INC., holds NPDES permit IA0081965. EPA’s file records it issued June 1, 2018 and expiring May 31, 2023.

ASSOCIATED MILK PRODUCERS, INC. - SANBORN, Sanborn, Iowa: Individual permit IA0081965, held by ASSOCIATED MILK PRODUCERS, INC.; Administratively continued (past its expiration date and still in force until reissued); issued June 1, 2018, term to May 31, 2023, by STA.

Chlorine, total residual: 4 limits, 72 violations of any kind, 40 effluent exceedances, latest September 30, 2025, largest 919% over the limit.
Nitrogen, ammonia total [as N]: 48 limits, 71 violations of any kind, 35 effluent exceedances, latest July 31, 2024, largest 4,692% over the limit.
BOD, 5-day, 20 deg. C: 2 limits, 51 violations of any kind, 19 effluent exceedances, latest October 31, 2025, largest 484% over the limit.
BOD, carbonaceous [5 day, 20 C]: 1 limit, 18 violations of any kind, 15 effluent exceedances, latest February 28, 2025, largest 344% over the limit.
pH: 2 limits, 36 violations of any kind, 10 effluent exceedances, latest January 31, 2024.
Oxygen, dissolved [DO]: 1 limit, 14 violations of any kind, 1 effluent exceedance, latest May 31, 2011, largest 72% over the limit.
Temperature, water deg. fahrenheit: 1 limit, 12 violations of any kind, 1 effluent exceedance, latest October 31, 2019, largest 14% over the limit.
Solids, total suspended: 2 limits, 32 violations of any kind, 0 effluent exceedances.

ASSOCIATED MILK PRODUCERS, INC. - SANBORN among its neighbors

EPA’s permit file holds 2 discharge permits in the Little Floyd River subwatershed (HUC 102300020302), IA0081965 among them. Its county holds 15, 1 of them major permits; IA0081965 is a minor permit.

Other permits in the Little Floyd River subwatershed (HUC 102300020302)

SANBORN CITY OF STP, Sanborn: IA0032522, minor permit, permit term to June 30, 2025

Identity

Facility as filed	ASSOCIATED MILK PRODUCERS, INC. - SANBORN
Permittee as filed	ASSOCIATED MILK PRODUCERS, INC.
NPDES ID	IA0081965
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	June 1, 2018
Expiration date	May 31, 2023
Issuing agency	STA
Address	Sanborn, IA 51248
Subwatershed	Little Floyd River (HUC 102300020302)

Effluent limits and exceedances

8Pollutants on file
8Under a numeric limit
8With 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
Chlorine, total residual	4	72	40	September 30, 2025	919% over the limit
Nitrogen, ammonia total [as N]	48	71	35	July 31, 2024	4,692% over the limit
BOD, 5-day, 20 deg. C	2	51	19	October 31, 2025	484% over the limit
BOD, carbonaceous [5 day, 20 C]	1	18	15	February 28, 2025	344% over the limit
pH	2	36	10	January 31, 2024
Oxygen, dissolved [DO]	1	14	1	May 31, 2011	72% over the limit
Temperature, water deg. fahrenheit	1	12	1	October 31, 2019	14% over the limit
Solids, total suspended	2	32	0

Inspections, violations and enforcement

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES IA0081965.

Inspections

EPA’s inspection file holds no inspection for NPDES IA0081965.

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

EPA’s informal enforcement file holds no action for NPDES IA0081965.

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Nearby on the register

Figures from EPA’s ICIS-NPDES download, loaded September 15, 2026.

This public-records page covers NPDES permit IA0081965, held by ASSOCIATED MILK PRODUCERS, INC. - SANBORN in Sanborn, IA, with its status shown as administratively continued and its discharger class as minor. The page lists 8 pollutants on file, 8 of them under a numeric limit, and 7 with an effluent exceedance.