Grant County STP
Dry Ridge, KY · Grant County · Publicly Owned Treatment Works
- Average flow
- 0.19 MGD
- Design flow
- 0.3 MGD
- NPDES permit
- KY0091634
- Effective
- Permit expires
- October 2028
- Population served
- 5,455
- CWNS 2022
Grant County STP is a publicly owned wastewater treatment works in Dry Ridge, Grant County, Kentucky treating an average of 0.19 million gallons per day against a permitted design capacity of 0.3 MGD, serving about 5,455 residents. Treatment on site includes biosolids aerobic digestion, dechlorination, disinfection, chlorine/ chloramine, disinfection, other chemical, suspended growth, aerobic. It discharges under NPDES permit KY0091634 (effective), which expires in October 2028, with 22 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Biosolids Aerobic Digestion
unit processDechlorination
unit processDisinfection, chlorine/ chloramine
unit processDisinfection, other chemical
unit processSuspended Growth, Aerobic
unit processUnlock exact unit counts →
Compliance snapshot (last 3 years)
- Total violations
- 22
- Effluent violations
- 22
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Grant County STP.
No verified contacts on file yet
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Nearby wastewater treatment plants in Kentucky
Walton · 7 mi away
0.68 MGD
Williamstown · 8 mi away
0.67 MGD
Glencoe · 9 mi away
0.009 MGD
Butler · 13 mi away
0.04 MGD
Warsaw · 15 mi away
0.19 MGD
Falmouth · 16 mi away
0.25 MGD
Corinth · 18 mi away
0.02 MGD
Carrollton · 28 mi away
1.18 MGD
Grant County STP: 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 November 26, 2025.