Oakdale, City Of
La Hwy 10, S. Of Oakdale, Oakdale, LA 71463 · Allen County · Publicly Owned Treatment Works
- Average flow
- 1.1 MGD
- Design flow
- 0.79 MGD
- NPDES permit
- LA0033430
- Effective
- Permit expires
- July 2029
- Population served
- 6,692
- CWNS 2022
Oakdale, City Of is a publicly owned wastewater treatment plant in Oakdale, Allen County, Louisiana treating an average of 1.1 million gallons per day against a permitted design capacity of 0.79 MGD, serving about 6,692 residents. It discharges under NPDES permit LA0033430 (effective), which expires in July 2029, with 87 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in April 2006.
Treatment technology
3 treatment structures and unit processes identified at Oakdale, City Of.
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See the full treatment train at Oakdale, City Of: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 87
- Effluent violations
- 87
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
EPA enforcement history
Federal civil enforcement cases, compliance inspections and informal actions recorded for Oakdale, City Of in EPA's ICIS system.
- Formal actions
- 1
- 0 since FY2020
- Compliance actions
- $10,000
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Apr 2006
Oakdale, City of
Administrative order · CWA, NPDES Permit Violations · Unilateral Administrative Order Without Adjudication · Compliance actions $10,000
EPA's description of the case:
“VIOLATIONS: Facility violated effluent limitations fron March 2002 thr November 2002. Deficiencies noted during an inspection dated March 19, 2003. RELIEF: (a) within 30 days take corrective action;…”
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Source: EPA ECHO, civil enforcement case 06-2003-2000.
Full case history with a free Klarifi account
Every action against Oakdale, City Of with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
Decision-makers at Oakdale, City Of.
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Nearby wastewater treatment plants in Louisiana
Glenmora · 12 mi away
0.15 MGD
Pine Prairie · 12 mi away
0.11 MGD
Oberlin · 16 mi away
0.33 MGD
Mamou · 17 mi away
0.4 MGD
Kinder · 19 mi away
0.2 MGD
Ville Platte · 22 mi away
0.77 MGD
Elton · 23 mi away
0.08 MGD
Basile · 23 mi away
0.24 MGD
Oakdale, City Of: 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 September 16, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Biological nutrient removal · Tertiary treatment · all terms