Clean Water Act discharge permit · NPDES IA0078735

GOLDEN GRAIN ENERGY, LLC, Mason City, IA: NPDES IA0078735 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
6Pollutants under a numeric limit
5Pollutants with an effluent exceedance

GOLDEN GRAIN ENERGY, LLC holds NPDES permit IA0078735. EPA’s file records it issued March 1, 2011 and expiring February 29, 2016. 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	GOLDEN GRAIN ENERGY, LLC
Permittee as filed	GOLDEN GRAIN ENERGY, LLC
NPDES ID	IA0078735
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	March 1, 2011
Expiration date	February 29, 2016
Issuing agency	STA
Address	Mason City, IA 50401
Subwatershed	Cheslea Creek-Willow Creek (HUC 070802030203)
NAICS	325193 – Ethyl Alcohol Manufacturing
SIC	2869 – Industrial Organic Chemicals
Other EPA IDs (FRS)	RCRA handler IAR000510610; ICIS-AIR source IA0000001903300240

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download; cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

7Pollutants on file
6Under a numeric limit
7With a violation of any kind
5With 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
Iron, total [as Fe]	4	183	131	February 28, 2011	982% over the limit
Chlorine, total residual	4	99	47	July 31, 2009	3,957% over the limit
Solids, total dissolved	0	31	27	December 31, 2010	46% over the limit
Solids, total suspended	4	62	2	September 30, 2007	24% over the limit
pH	2	28	2	November 30, 2010
Sulfate, total [as SO4]	4	40	0
Temperature, water deg. fahrenheit	1	10	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

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES IA0078735.

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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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 IA0078735 there.

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 IA0078735, held by GOLDEN GRAIN ENERGY, LLC of Mason City, IA, which EPA's file shows as administratively continued after its February 29, 2016 expiration. The page lists 6 for the discharger class, 5 pollutants under a numeric limit, and 5 pollutants with an effluent exceedance.