Clean Water Act discharge permit · NPDES AR0001376

ENTERGY ARKANSAS, INC. - CECIL LYNCH PLANT, North Little Rock, AR: NPDES AR0001376 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
12Pollutants under a numeric limit
4Pollutants with an effluent exceedance

ENTERGY ARKANSAS, INC. - CECIL LYNCH PLANT, held by ENTERGY-CECIL LYNCH STEAM ELEC, holds NPDES permit AR0001376, which discharges to Arkansas Rv. EPA’s file records it issued October 31, 2006 and expiring October 31, 2011. 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	ENTERGY ARKANSAS, INC. - CECIL LYNCH PLANT
Permittee as filed	ENTERGY-CECIL LYNCH STEAM ELEC
NPDES ID	AR0001376
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	October 31, 2006
Expiration date	October 31, 2011
Address	North Little Rock, AR 72117
Receiving water	ARKANSAS RV
Subwatershed	Hills Lake (HUC 111102070403)
NAICS	221112 – Fossil Fuel Electric Power Generation
SIC	4911 – Electric Services
Other EPA IDs (FRS)	RCRA handler ARD000632810

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

12Pollutants on file
12Under a numeric limit
12With a violation of any kind
4With 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	16	17	5	May 31, 2011	278% over the limit
Oil & Grease	16	14	2	July 31, 2008	49% over the limit
Chlorine, free available	16	17	1	May 31, 2008	958% over the limit
Temperature, water deg. fahrenheit	4	6	1	July 31, 2008	7% over the limit
Flow, in conduit or thru treatment plant	8	10	0
pH	8	6	0
Low Flow Pass/Fail Static Renewal 48Hr Acute Daphnia pulex	4	2	0
LF Pass/Fail Static Renewal 48Hr Acute Pimephales promelas	4	2	0
NOAEC Lethal Statis Renewal 48 Hr Acute Daphnia pulex	4	2	0
NOAEC Lethal Static Renewal 48Hr acute Pimephales promelas	4	2	0
Coef Of Var Static Renewal 48Hr Acute D. pulex	4	2	0
Coef Of Var Static Renewal 48Hr Acute Pimephales promelas	4	2	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 AR0001376.

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

One permit holder, $99/month. Watch the register for one permit holder and the places and receiving waters tied to its permits. Choose “One permit holder” and enter this permit’s NPDES ID, AR0001376.

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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 AR0001376 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 AR0001376 for ENTERGY ARKANSAS, INC. - CECIL LYNCH PLANT in North Little Rock, AR, which is listed as administratively continued and a minor discharger. The page reports 12 pollutants under a numeric limit and 4 pollutants with an effluent exceedance, and it notes that the permit's file dates reflect what EPA's record showed when the page was loaded on October 14, 2026.