Donaldsonville, City Of
Donaldsonville, LA 70346 · Ascension County · Publicly Owned Treatment Works
- Average flow
- 1.4 MGD
- Design flow
- 1.5 MGD
- NPDES permit
- LA0043931
- Effective
- Permit expires
- March 2029
- Population served
- 8,135
- CWNS 2022
Donaldsonville, City Of is a publicly owned wastewater treatment plant in Donaldsonville, Ascension County, Louisiana treating an average of 1.4 million gallons per day against a permitted design capacity of 1.5 MGD, serving about 8,135 residents. It discharges under NPDES permit LA0043931 (effective), which expires in March 2029, with 18 recorded violations in the last three years. EPA has recorded 2 formal enforcement actions naming the plant, the latest in July 1998.
Treatment technology
One treatment structure or unit process identified at Donaldsonville, City Of.
Available with a free Klarifi account
See the full treatment train at Donaldsonville, City Of: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 18
- Effluent violations
- 16
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 Donaldsonville, City Of in EPA's ICIS system.
- Formal actions
- 2
- 0 since FY2020
- EPA inspections
- 0
- none on record
Latest case · Jul 1998
DONALDSONVILLE, CITY OF
Administrative order · CWA, NPDES Discharge without a Permit · Unilateral Administrative Order Without Adjudication
Source: EPA ECHO, civil enforcement case 06-1997-0659.
Full case history with a free Klarifi account
Every action against Donaldsonville, City Of with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
1 verified contact for Donaldsonville, City Of, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Donaldsonville, City Of, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Louisiana
St. James · 7 mi away
0.0014 MGD
Napoleonville · 10 mi away
0.1 MGD
Gonzales · 10 mi away
1.96 MGD
Sorrento · 10 mi away
—
Saint Gabriel · 13 mi away
0.09 MGD
White Castle · 14 mi away
0.29 MGD
Saint Gabriel · 14 mi away
0.17 MGD
Gonzales · 15 mi away
0.04 MGD
Donaldsonville, 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 April 24, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Biosolids · Filter press · all terms