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World wastewater treatment plant observatory · data as reported by each inventory

Wastewater treatment plants in United States · Louisiana

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318 inventory records · EPA Clean Watersheds Needs Survey 2022

Data years: 2022. The inventory date does not establish current operation.

318 results

CompareNameNative sizeYear
Fairway EastAlexandria0.03 MGD (million gallons per day)2022
Lost Ridge WWTPAlexandria0.028 MGD (million gallons per day)2022
IDA STPIda0.025 MGD (million gallons per day)2022
REEVES LAGOONReeves0.025 MGD (million gallons per day)2022
VELMA WWTFAmite0.025 MGD (million gallons per day)2022
Lightwood Sewer Morehouse ParishBastrop0.025 MGD (million gallons per day)2022
Tricia Park Collection System - Avoyelles Parish Police JuryMarksville0.02 MGD (million gallons per day)2022
Moliasion Treatment FacilityVacherie0.02 MGD (million gallons per day)2022
Breaux Estates - Iberia Parish SD 1New Iberia0.02 MGD (million gallons per day)2022
Beau Fleur - IPSD 1New Iberia0.02 MGD (million gallons per day)2022
OAK RIDGE STPOak Ridge0.02 MGD (million gallons per day)2022
POWHATAN STPPowhatan0.02 MGD (million gallons per day)2022
BRAITHWAITE PONDBraithwaite0.02 MGD (million gallons per day)2022
LAROSE STPRaceland0.017 MGD (million gallons per day)2022
PIONEER WWTPPioneer0.014 MGD (million gallons per day)2022
Franklin Parish Police JuryWinnsboro0.01 MGD (million gallons per day)2022
SIKES LAGOONSikes0.01 MGD (million gallons per day)2022
ST. JAMES WEST BANK STPLutcher0.009 MGD (million gallons per day)2022

Regulatory context

General reference. This is not an exhaustive review of applicable law.

United States: Clean Water Act / NPDES

NPDES regulates pollutant discharges from point sources to waters of the United States. The permit sets limits and monitoring conditions. A CWNS code identifies an inventory record, not an NPDES permit.

  • Permit identifier and permitting authority: EPA or an authorized state.
  • Outfall and receiving water; sewer connections follow a different control route.
  • Current permit conditions, limits and dated measurements; these are not included in CWNS.

References reviewed: 2026-11-06. Individual applicability: undetermined. This profile does not establish authorization or compliance.