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Clean Water Act discharge permit · NPDES LA0084336

COVINGTON CITY OF - COVINGTON SEWERAGE TREATMENT FACILITY, Covington, LA: NPDES LA0084336 discharge permit, effluent exceedances, inspections, penalties

COVINGTON CITY OF - COVINGTON SEWERAGE TREATMENT FACILITY, held by City of Covington- Sewerage Treatment Facility, holds NPDES permit LA0084336. EPA’s file records it issued September 29, 2020 and expiring October 31, 2025. 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 filedCOVINGTON CITY OF - COVINGTON SEWERAGE TREATMENT FACILITY
Permittee as filedCity of Covington- Sewerage Treatment Facility
NPDES IDLA0084336
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMajor discharger
Facility typePublicly owned treatment works
ProgramPublicly owned treatment works
IssuedSeptember 29, 2020
Expiration dateOctober 31, 2025
AddressCovington, LA 70434
Receiving water impaired303(D) Listed
SubwatershedSoap and Tallow Branch-Tchefuncta River (HUC 080902010204)
SIC4952 – 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

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 measureLimitsViolations, any kindEffluent exceedancesLatest exceedanceLargest exceedance, as filed
Copper, total [as Cu]43513September 30, 2025156% over the limit
Coliform, fecal general2248July 31, 20041,510% over the limit
Zinc, total [as Zn]0317March 31, 2011120% over the limit
Nitrogen, ammonia total [as N]3275November 30, 2007106% over the limit
Chlorine, total residual1145July 31, 2015142% over the limit
BOD, carbonaceous [5 day, 20 C]3294January 31, 202460% over the limit
Carbon, tot organic [TOC]021December 31, 2012116% over the limit
Solids, total suspended3280
Flow, in conduit or thru treatment plant2210
pH2180
NOEC Sub-Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia2160
Nitrogen, Kjeldahl, total [as N]0150
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Ceriodaphnia dubia2140
Low Flow Pass/Fail Survival Test Static Renewal 7 Day Chronic Pimephales promelas2140
NOEC Lethal Static Renewal 7 Day Chronic Ceriodaphnia dubia2140
NOEC Lethal Static Renewal 7 Day Chronic Pimephales promelas2140
NOEC Sub-Lethal Static Renewal 7 Day Chronic Pimephales promelas2140
Pass/Fail Static Renewal 7 Day Chronic Ceriodaphnia dubia2120
Pass/Fail Static Renewal 7Day Chronic Pimephales promelas2120
Coef Of Var Static Renewal 7Day Chronic Ceriodaphnia dubia1120
Coef Of Var Static Renewal 7Day Chronic Pimephales promelas1120
Oil & Grease010
Whole effluent toxicity - retest #1400
Whole effluent toxicity - retest #2400
WET, sublethal retest #1400
WET, sublethal retest #2400
Whole Effluent Toxicity - Retest #3400
Whole Effluent Toxicity, Sub-Lethal Retest #3400
Nitrogen, total [as N]300
Phosphorus, total [as P]300

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

DateWhat EPA recordedAgency
August 18, 2025Failure to minimize or prevent SSO to waters of the U.S. - adverse impacts [40 CFR 122.41(d)]ST6
August 18, 2025Failure to properly operate and maintain the sanitary sewer system [40 CFR 122.41(e)]ST6
November 9, 2022Failure to minimize or prevent SSO to waters of the U.S. - adverse impacts [40 CFR 122.41(d)]ST6
October 25, 2022Management Practice Violations - Failure to Develop Adequate SPCC PlanST6
October 25, 2022Failure to develop, maintain, or get approval of an adequate SWPPP (industrial stormwater)ST6
October 3, 2022Failure to properly operate and maintain the sanitary sewer system [40 CFR 122.41(e)]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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Nearby on the register

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

What this page shows

This public-records page covers NPDES permit LA0084336 for the Covington City of - Covington Sewerage Treatment Facility in Covington, LA, a major discharger holding an administratively continued permit issued September 29, 2020 and expiring October 31, 2025. The page lists 26 pollutants under a numeric limit and 7 pollutants with an effluent exceedance, within the Soap and Tallow Branch-Tchefuncta River subwatershed (HUC 080902010204).