Clean Water Act discharge permit · NPDES LA0115771

CARVILLE WWTF, Saint Gabriel, LA: NPDES LA0115771 discharge permit, effluent exceedances, inspections, penalties

EffectivePermit status
MinorDischarger class
12Pollutants under a numeric limit
8Pollutants with an effluent exceedance

CARVILLE WWTF, held by CITY OF ST. GABRIEL, holds NPDES permit LA0115771. EPA’s file records it issued April 26, 2017 and expiring May 31, 2022. 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	CARVILLE WWTF
Permittee as filed	CITY OF ST. GABRIEL
NPDES ID	LA0115771
Permit status	Effective
Permit type	Individual permit
Discharger class	Minor discharger
Facility type	Publicly owned treatment works
Program	Publicly owned treatment works
Issued	April 26, 2017
Expiration date	May 31, 2022
Address	Saint Gabriel, LA 70776
Receiving water impaired	303(D) Listed
Subwatershed	Bayou Braud (HUC 080702020801)
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

13Pollutants on file
12Under a numeric limit
12With a violation of any kind
8With 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
Coliform, fecal general	2	22	16	January 31, 2025	99,999% over the limit
Nitrogen, ammonia total [as N]	3	11	11	August 31, 2019	134% over the limit
Solids, total suspended	3	19	10	December 31, 2021	74% over the limit
Sulfate, total [as SO4]	4	4	4	September 30, 2020	252% over the limit
Solids, total dissolved	4	2	2	September 30, 2020	70% over the limit
BOD, carbonaceous [5 day, 20 C]	3	2	2	November 30, 2018	37% over the limit
BOD, 5-day, 20 deg. C	0	10	1	January 31, 2024	9% over the limit
Chloride [as Cl]	4	1	1	June 30, 2020	54% over the limit
pH	2	6	0
Flow, in conduit or thru treatment plant	2	6	0
Nitrogen, total [as N]	3	3	0
Phosphorus, total [as P]	3	3	0
Oxygen, dissolved [DO]	1	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 LA0115771.

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 LA0115771 there.

Nearby on the register

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

This public-records page covers NPDES permit LA0115771 for the CARVILLE WWTF in Saint Gabriel, LA, held by CITY OF ST. GABRIEL, with a status of Effective and a Minor Discharger class. The facts list 13 pollutants on file, 12 under a numeric limit, 12 with a violation of any kind, and 8 with an effluent exceedance.