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Clean Water Act discharge permit · NPDES LA0120243

MAGNOLIA WATER UTILITY OPERATING CO., LLC- GUSTE ISLAND STF, Madisonville, LA: NPDES LA0120243 discharge permit, effluent exceedances, inspections, penalties

MAGNOLIA WATER UTILITY OPERATING CO., LLC- GUSTE ISLAND STF, held by GUSTE ISLAND UTILITY CORP., holds NPDES permit LA0120243. EPA’s file records it issued January 7, 2008 and expiring January 6, 2013. 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 filedMAGNOLIA WATER UTILITY OPERATING CO., LLC- GUSTE ISLAND STF
Permittee as filedGUSTE ISLAND UTILITY CORP.
NPDES IDLA0120243
Permit statusAdministratively continued (past its expiration date and still in force until reissued)
Permit typeIndividual permit
Discharger classMinor discharger
Facility typeNot a publicly owned treatment works
IssuedJanuary 7, 2008
Expiration dateJanuary 6, 2013
AddressMadisonville, LA 70447
Receiving water impaired303(D) Listed
SubwatershedBlack River (HUC 080902010205)
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
Solids, total suspended34839March 31, 2025331% over the limit
BOD, 5-day, 20 deg. C34535December 31, 2025240% over the limit
Coliform, fecal general23630June 30, 20262,890% over the limit
pH293November 30, 2024
Flow, in conduit or thru treatment plant270
Nitrogen, ammonia total [as N]330
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
December 31, 2018Reporting Violations - Failure to submit required report (non-DMR non-pretreatment)ST6
December 31, 2018Monitoring Violations - Failure to Monitor for Non-Toxicity RequirementsST6
December 31, 2017Permit Violations - Violation Specified in CommentST6

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 LA0120243 there.

Nearby on the register

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

What this page shows

This public-records page covers Clean Water Act NPDES permit LA0120243 for MAGNOLIA WATER UTILITY OPERATING CO., LLC- GUSTE ISLAND STF in Madisonville, LA, which is administratively continued as a Minor discharger class facility. The page lists 8 pollutants under a numeric limit and 4 pollutants with an effluent exceedance.