Walnut Ridge WW Treatment Plnt
Walnut Ridge, AR · Lawrence County · Publicly Owned Treatment Works
- Average flow
- 0.28 MGD
- Design flow
- —
- NPDES permit
- ARL046566
- Effective
- Permit expires
- December 2030
- Population served
- 5,386
- CWNS 2022
Walnut Ridge WW Treatment Plnt is a publicly owned wastewater treatment works in Walnut Ridge, Lawrence County, Arkansas treating an average of 0.28 million gallons per day, serving about 5,386 residents. Treatment on site includes aerated lagoons, uncovered lagoons. It discharges under NPDES permit ARL046566 (effective), which expires in December 2030, with 257 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Compliance snapshot (last 3 years)
- Total violations
- 257
- Effluent violations
- 257
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Walnut Ridge WW Treatment Plnt, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Walnut Ridge WW Treatment Plnt, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Arkansas
Hoxie · 2 mi away
0.02 MGD
Portia · 6 mi away
0.005 MGD
Black Rock · 7 mi away
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Sedgwick · 9 mi away
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O'Kean · 11 mi away
0.02 MGD
Pocahontas · 12 mi away
0.43 MGD
Alicia · 14 mi away
0.0022 MGD
Imboden · 14 mi away
—
Walnut Ridge WW Treatment Plnt: 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 July 24, 2026.