Concordia Parish Sewerage District 1
End Of Vidalia Dr., Ridgecrest, LA 71334 · Concordia County · Publicly Owned Treatment Works
- Average flow
- 0.1 MGD
- Design flow
- 0.6 MGD
- NPDES permit
- LA0038601
- Effective
- Permit expires
- February 2031
- Population served
- 3,697
- CWNS 2022
Concordia Parish Sewerage District 1 is a publicly owned wastewater treatment works in Ridgecrest, Concordia County, Louisiana treating an average of 0.1 million gallons per day against a permitted design capacity of 0.6 MGD, serving about 3,697 residents. It discharges under NPDES permit LA0038601 (effective), which expires in February 2031, with 154 recorded violations in the last three years.
Treatment technology
2 treatment structures and unit processes identified at Concordia Parish Sewerage District 1.
Available with a free Klarifi account
See the full treatment train at Concordia Parish Sewerage District 1: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 154
- Effluent violations
- 148
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Concordia Parish Sewerage District 1.
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Nearby wastewater treatment plants in Louisiana
Ferriday · 3 mi away
0.23 MGD
Vidalia · 5 mi away
0.36 MGD
Clayton · 8 mi away
0.04 MGD
Jonesville · 17 mi away
0.11 MGD
Waterproof · 17 mi away
0.0084 MGD
Sicily Island · 19 mi away
0.02 MGD
Harrisonburg · 21 mi away
0.0032 MGD
Wisner · 27 mi away
0.0043 MGD
Concordia Parish Sewerage District 1: frequently asked questions
Sources and methodology
Flow, permit and violation figures come from the EPA's ICIS-NPDES discharge monitoring records. Population served comes from the Clean Watersheds Needs Survey 2022. Treatment structures are identified by Klarifi's review of aerial imagery, and capital improvement projects are extracted from published municipal budget documents. Violations are counted over the last three years of monitoring reports.
Data refreshed October 26, 2026; facility record last updated August 3, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Ozonation · Activated sludge · all terms