Clean Water Act discharge permit · NPDES LA0020133

LAKE ARTHUR, TOWN OF, Lake Arthur, LA: NPDES LA0020133 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
9Pollutants under a numeric limit
7Pollutants with an effluent exceedance

LAKE ARTHUR, TOWN OF holds NPDES permit LA0020133, which discharges to 5c. EPA’s file records it issued June 22, 2017 and expiring July 31, 2022. 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	LAKE ARTHUR, TOWN OF
Permittee as filed	LAKE ARTHUR, TOWN OF
NPDES ID	LA0020133
Permit status	Administratively continued (past its expiration date and still in force until reissued)
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	June 22, 2017
Expiration date	July 31, 2022
Address	Lake Arthur, LA 70549
Receiving water	5C
Subwatershed	Long Island Creek-Whites Bayou (HUC 120302030201)

Cited to the EPA ICIS-NPDES permit file (ECHO download).

Effluent limits and exceedances

10Pollutants on file
9Under a numeric limit
10With 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
Solids, total suspended	6	208	181	March 31, 2026	1,704% over the limit
Coliform, fecal general	4	168	152	March 31, 2026	99,999% over the limit
Nitrogen, ammonia total [as N]	6	180	130	October 31, 2025	625% over the limit
Oxygen, dissolved [DO]	2	176	116	June 30, 2026	99% over the limit
BOD, carbonaceous [5 day, 20 C]	6	180	89	March 31, 2026	99,999% over the limit
pH	4	80	2	March 31, 2024
BOD, 5-day, 20 deg. C	0	11	2	October 31, 2003	7% over the limit
Flow, in conduit or thru treatment plant	4	19	0
Nitrogen, total [as N]	6	15	0
Phosphorus, total [as P]	6	15	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

8Single-event violations

Date	What EPA recorded	Agency
March 2, 2022	Management Practice Violations - Improper Operation and Maintenance	ST6
June 30, 2018	Reporting Violations - Late Submittal of DMRs	ST6
February 28, 2018	Reporting Violations - Failure to submit required report (non-DMR non-pretreatment)	ST6
May 31, 2017	Management Practice Violations - Improper Operation and Maintenance	ST6
May 31, 2017	Management Practice Violations - Failure to Maintain Records	ST6
May 31, 2017	Monitoring Violations - Improper Analysis or Lab Error	ST6
May 31, 2017	Permit Violations - Violation Specified in Comment	ST6
April 30, 2017	Reporting Violations - Late Submittal of DMRs	ST6

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 LA0020133 there.

Nearby on the register

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

This public-records page covers NPDES permit LA0020133, held by LAKE ARTHUR, TOWN OF in Lake Arthur, LA, which discharges to 5c and is administratively continued. The page lists 10 pollutants on file, 9 under a numeric limit, 10 with a violation of any kind, and 7 with an effluent exceedance.