Clean Water Act discharge permit · NPDES LA0049883

GUEYDAN STP, Gueydan, LA: NPDES LA0049883 discharge permit, effluent exceedances, inspections, penalties

Administratively continuedPermit status
MinorDischarger class
7Pollutants under a numeric limit
5Pollutants with an effluent exceedance

GUEYDAN STP, held by GUEYDAN, TOWN OF, holds NPDES permit LA0049883, which discharges to 5b. EPA’s file records it issued March 11, 2011 and expiring March 31, 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	GUEYDAN STP
Permittee as filed	GUEYDAN, TOWN OF
NPDES ID	LA0049883
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	March 11, 2011
Expiration date	March 31, 2016
Address	Gueydan, LA 70542
Receiving water	5B
Subwatershed	Warren Canal-Frontal Intercoastal Waterway (HUC 080802020604)
SIC	4952 – Sewerage Systems

Cited to the EPA ICIS-NPDES permit file (ECHO download) and EPA’s NAICS/SIC and component files, the same download.

Effluent limits and exceedances

7Pollutants on file
7Under 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
Solids, total suspended	3	70	61	February 28, 2026	346% over the limit
Coliform, fecal general	2	55	49	February 28, 2026	99,999% over the limit
Nitrogen, ammonia total [as N]	3	34	25	October 31, 2024	86% over the limit
BOD, carbonaceous [5 day, 20 C]	3	14	5	March 31, 2024	55% over the limit
Oxygen, dissolved [DO]	1	5	2	August 31, 2021	24% over the limit
pH	2	6	0
Flow, in conduit or thru treatment plant	2	6	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

3Single-event violations

Date	What EPA recorded	Agency
December 9, 2021	Management Practice Violations - Improper Operation and Maintenance	ST6
December 9, 2021	Permit Violations - Application Incomplete	ST6
February 5, 2021	Permit Violations - Failure to Submit Timely Permit Renewal Application	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.

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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 LA0049883 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 LA0049883 for the GUEYDAN STP in Gueydan, LA, held by GUEYDAN, TOWN OF, with a status of administratively continued and a discharger class of Minor. The page lists 5 pollutants under a numeric limit and 5 pollutants with an effluent exceedance, among 7 pollutants on file.