Sulphur Rock WWTP
1003 Crow Lane, Sulphur Rock, AR 72579 · Independence County · Publicly Owned Treatment Works
- Average flow
- 0.02 MGD
- Design flow
- 0.08 MGD
- NPDES permit
- AR0046680
- Effective
- Permit expires
- January 2030
- Population served
- 613
- CWNS 2022
Sulphur Rock WWTP is a publicly owned wastewater treatment works in Sulphur Rock, Independence County, Arkansas treating an average of 0.02 million gallons per day against a permitted design capacity of 0.08 MGD, serving about 613 residents. It discharges under NPDES permit AR0046680 (effective), which expires in January 2030, with 162 recorded violations in the last three years.
Treatment technology
Treatment structures and unit processes at Sulphur Rock WWTP.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 162
- Effluent violations
- 162
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Sulphur Rock WWTP.
No verified contacts on file yet
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Sulphur Rock WWTP: 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 July 24, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Biosolids · Filter press · all terms