Clean Water Act discharge permit · NPDES MO0126560

AECI HOLDEN POWER PLANT, Holden, MO: NPDES MO0126560 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
8Pollutants under a numeric limit
1Pollutants with an effluent exceedance

AECI HOLDEN POWER PLANT, held by Associated Electric Cooperative, Inc, holds NPDES permit MO0126560, which discharges to Tributary To Pin Oak Cr.. EPA’s file records it issued August 20, 2019 and expiring September 30, 2021. The status and dates are as EPA’s permit file stood when Velarion loaded it (September 15, 2026); EPA’s free Detailed Facility Report on ECHO carries the permit’s current standing.

Identity

Facility as filed	AECI HOLDEN POWER PLANT
Permittee as filed	Associated Electric Cooperative, Inc
NPDES ID	MO0126560
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 20, 2019
Expiration date	September 30, 2021
Address	Holden, MO 64040
Receiving water	Tributary to Pin Oak Cr.
Subwatershed	Pin Oak Creek (HUC 103001040101)
Other EPA IDs (FRS)	RCRA handler MOP000500918; ICIS-AIR source MO0000002910100051

Cited to the EPA ICIS-NPDES permit file (ECHO download); cross-program IDs from EPA’s FRS facility-registry crosswalk.

Effluent limits and exceedances

9Pollutants on file
8Under a numeric limit
2With a violation of any kind
1With 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
pH	2	1	1	December 31, 2025
Report due [yrmoda]	0	1	0
Flow, in conduit or thru treatment plant	4	0	0
Temperature, water deg. fahrenheit	2	0	0
Solids, total suspended	2	0	0
Oil and grease [soxhlet extr.] tot.	2	0	0
Nitrogen, total [as N]	2	0	0
Nitrogen, ammonia total [as N]	2	0	0
Chlorine, total residual	2	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

0Single-event violations

EPA’s single-event violation file, as loaded, holds no violation for NPDES MO0126560.

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 MO0126560 there.

Nearby on the register

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

This public-records page covers Clean Water Act discharge permit NPDES MO0126560, held by Associated Electric Cooperative, Inc for the AECI HOLDEN POWER PLANT in Holden, MO, which discharges to Tributary To Pin Oak Cr. in the Pin Oak Creek subwatershed (HUC 103001040101). The permit is listed as administratively continued, with a Minor Discharger class, 8 pollutants under a numeric limit, and 1 pollutant with an effluent exceedance.