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Clean Water Act discharge permit · NPDES LA0127553

MAGNOLIA WATER UTILITY OPERATING CO., LLC- COTEAU RIDGE SUBDIVISION, New Iberia, LA: NPDES LA0127553 discharge permit, effluent exceedances, inspections, penalties

MAGNOLIA WATER UTILITY OPERATING CO., LLC- COTEAU RIDGE SUBDIVISION, held by MAGNOLIA WATER UTILITY OPERATING CO., LLC, holds NPDES permit LA0127553. EPA’s file records it issued August 16, 2021 and expiring August 15, 2026. 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 filedMAGNOLIA WATER UTILITY OPERATING CO., LLC- COTEAU RIDGE SUBDIVISION
Permittee as filedMAGNOLIA WATER UTILITY OPERATING CO., LLC
NPDES IDLA0127553
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
IssuedAugust 16, 2021
Expiration dateAugust 15, 2026
AddressNew Iberia, LA 70560
Receiving water impaired303(D) Listed
SubwatershedBayou Pare Perdu-Lake Peigneur (HUC 080801030303)

Cited to the EPA ICIS-NPDES permit file (ECHO 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 suspended43519February 28, 2026520% over the limit
Nitrogen, ammonia total [as N]43616June 30, 20262,100% over the limit
BOD, carbonaceous [5 day, 20 C]4204June 30, 202660% over the limit
Enterococci4320
pH4160
Flow, in conduit or thru treatment plant4160
Coliform, fecal general4160
Oxygen, dissolved [DO]280
Nitrogen, total [as N]260
Phosphorus, total [as P]260

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 2, 2025Management Practice Violations - Improper Operation and MaintenanceST6

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 LA0127553 there.

Nearby on the register

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

What this page shows

This public-records page covers Clean Water Act discharge permit NPDES LA0127553, held by Magnolia Water Utility Operating Co., LLC for its Coteau Ridge Subdivision facility in New Iberia, LA, with a status of administratively continued. The permit was issued August 16, 2021 and expires August 15, 2026, and the page lists a Minor discharger class, 10 pollutants under a numeric limit, and 3 pollutants with an effluent exceedance. The subwatershed is listed as Bayou Pare Perdu-Lake Peigneur (HUC 080801030303).