Clean Water Act discharge permit · NPDES AR0049611

ARKANSAS ELECTRIC COOPERATIVE CORPORATION-MAGNET COVE GENERATING STATION, Malvern, AR: NPDES AR0049611 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MajorDischarger class
17Pollutants under a numeric limit
3Pollutants with an effluent exceedance

ARKANSAS ELECTRIC COOPERATIVE CORPORATION-MAGNET COVE GENERATING STATION, held by ARKANSAS ELECTRIC COOPERATIVE CORPORATION, holds NPDES permit AR0049611, which discharges to Ouachita R. EPA’s file records it issued October 16, 2018 and expiring October 31, 2023. 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	ARKANSAS ELECTRIC COOPERATIVE CORPORATION-MAGNET COVE GENERATING STATION
Permittee as filed	ARKANSAS ELECTRIC COOPERATIVE CORPORATION
NPDES ID	AR0049611
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Major discharger
Facility type	Not a publicly owned treatment works
Issued	October 16, 2018
Expiration date	October 31, 2023
Address	Malvern, AR 72104
Receiving water	OUACHITA R
Subwatershed	Stone Quarry Creek-Ouachita River (HUC 080401020101)
NAICS	221112 – Fossil Fuel Electric Power Generation
SIC	4911 – Electric Services
Other EPA IDs (FRS)	RCRA handler ARR000016451; ICIS-AIR source AR0000000505900337

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

17Pollutants on file
17Under a numeric limit
5With a violation of any kind
3With 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, free available	4	57	5	April 30, 2024	150% over the limit
pH	6	11	3	January 31, 2022
Solids, total suspended	8	8	3	December 31, 2025	33% over the limit
Oil & Grease	8	4	0
Flow, in conduit or thru treatment plant	6	4	0
Whole effluent toxicity - retest #1	2	0	0
Whole effluent toxicity - retest #2	2	0	0
WET, sublethal retest #1	2	0	0
WET, sublethal retest #2	2	0	0
Whole Effluent Toxicity - Retest #3	2	0	0
Whole Effluent Toxicity, Sub-Lethal Retest #3	2	0	0
Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex	2	0	0
LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas	2	0	0
NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex	2	0	0
NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas	2	0	0
Coef Of Var Static Renewal 48Hr Acute D. pulex	2	0	0
Coef Of Var Static Renewal 48Hr Acute Pimephales promelas	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 AR0049611.

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.

Watch this permit

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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 AR0049611 there.

Nearby on the register

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

This public-records page covers NPDES permit AR0049611, held by Arkansas Electric Cooperative Corporation for its Magnet Cove Generating Station in Malvern, AR, which discharges to the Ouachita R. The permit is administratively continued, is classed as a Major Discharger, and shows 17 pollutants under a numeric limit and 3 pollutants with an effluent exceedance.