Hardy WWTP
Hardy, AR · Sharp County · Publicly Owned Treatment Works
- Average flow
- 0.07 MGD
- Design flow
- 0.18 MGD
- NPDES permit
- AR0037991
- Effective
- Permit expires
- July 2028
- Population served
- 745
- CWNS 2022
Hardy WWTP is a publicly owned wastewater treatment works in Hardy, Sharp County, Arkansas treating an average of 0.07 million gallons per day against a permitted design capacity of 0.18 MGD, serving about 745 residents. Treatment on site includes clarifiers, uncovered lagoons, carrousels / oxidation ditches. It discharges under NPDES permit AR0037991 (effective), which expires in July 2028, with 57 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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Uncovered lagoons
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Carrousels / oxidation ditches
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Compliance snapshot (last 3 years)
- Total violations
- 57
- Effluent violations
- 57
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Hardy WWTP.
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Nearby wastewater treatment plants in Arkansas
Cherokee Village · 6 mi away
0.07 MGD
Ash Flat · 10 mi away
0.07 MGD
Mammoth Spring · 12 mi away
0.05 MGD
Ravenden · 14 mi away
0.0031 MGD
Ravenden Springs · 14 mi away
0.02 MGD
Horseshoe Bend · 18 mi away
0.007 MGD
Horseshoe Bend · 18 mi away
0.04 MGD
Imboden · 19 mi away
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Hardy 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 September 11, 2026; facility record last updated July 25, 2026.