Monroe, City Of (wpc Cntr)
Monroe, LA · Ouachita County · Publicly Owned Treatment Works
- Average flow
- 6.09 MGD
- Design flow
- —
- NPDES permit
- LAL038741
- Effective
- Permit expires
- December 2030
- Population served
- 60,381
- CWNS 2022
Monroe, City Of (wpc Cntr) is a publicly owned wastewater treatment plant in Monroe, Ouachita County, Louisiana treating an average of 6.09 million gallons per day, serving about 60,381 residents. Treatment on site includes clarifiers, aerated lagoons, uncovered lagoons, biogas balloons. It discharges under NPDES permit LAL038741 (effective), which expires in December 2030, with 78 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
Unlock
Aerated lagoons
Unlock
Uncovered lagoons
Unlock
Biogas balloons
Unlock
Unlock exact unit counts →
Compliance snapshot (last 3 years)
- Total violations
- 78
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Capital improvement projects in Monroe
Monroe's capital improvement plan lists 9 water, sewer and wastewater line items worth $69M starting 2026–2027. The largest budgeted items are shown here.
All water and sewer capital projects in Monroe →
| Project | Budget | Years |
|---|---|---|
| Sewer FY26-FY30 (WPCC) | $22,761,646 | 2026–2030 |
| Water FY26-FY30 (Distribution & Transmission) | $17,562,500 | 2026–2030 |
| Sewer FY26-FY30 (Collection & Transmission) | $13,529,115 | 2026–2030 |
| Texas Standifer Trunkline Repairs Phase 2 | $8,500,000 | 2027–2029 |
| River Pump Station WTP | $4,200,000 | 2027–2028 |
Full project details — scope, funding source, engineering consultant and the decision-makers behind each project — are available in Klarifi, along with similar wastewater capital projects in other cities.
Key contacts
2 verified contacts for Monroe, City Of (wpc Cntr), with validated emails and direct phone numbers.
Unlock 2 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Monroe, City Of (wpc Cntr), plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Louisiana
Monroe · 9 mi away
0.14 MGD
West Monroe · 12 mi away
0.02 MGD
Sterlington · 18 mi away
0.21 MGD
Rayville · 19 mi away
1.05 MGD
Eros · 19 mi away
—
Mangham · 21 mi away
0.06 MGD
Chatham · 22 mi away
0.02 MGD
Downsville · 23 mi away
—
Monroe, City Of (wpc Cntr): 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 September 11, 2026; facility record last updated August 5, 2026.