How much wastewater does Williamstown/dry Ridge WRF treat?

Williamstown/dry Ridge WRF treats an average of 0.67 MGD and is permitted for a design flow of 2 MGD.

What is the NPDES permit for Williamstown/dry Ridge WRF?

The facility discharges under NPDES permit KY0109991, currently effective, expiring December 2030.

Is Williamstown/dry Ridge WRF in compliance?

Discharge monitoring reports show 13 violations at Williamstown/dry Ridge WRF in the last three years, 13 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Williamstown/dry Ridge WRF and how do I contact them?

Williamstown/dry Ridge WRF is a publicly owned treatment works in Williamstown, Kentucky. Klarifi lists decision-maker contacts for this facility, available with a free trial.

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Williamstown/dry Ridge WRF

Q: What treatment technology does Williamstown/dry Ridge WRF use?

Klarifi has identified biosolids mechanical dewatering, disinfection, uv, suspended growth, aerobic at the Williamstown facility.

Williamstown, KY · Grant County · Publicly Owned Treatment Works

Average flow: 0.67 MGD

Design flow: 2 MGD

NPDES permit: KY0109991; Effective

Permit expires: December 2030

Population served: 5,810; CWNS 2022

Williamstown/dry Ridge WRF is a publicly owned wastewater treatment works in Williamstown, Grant County, Kentucky treating an average of 0.67 million gallons per day against a permitted design capacity of 2 MGD, serving about 5,810 residents. Treatment on site includes biosolids mechanical dewatering, disinfection, uv, suspended growth, aerobic. It discharges under NPDES permit KY0109991 (effective), which expires in December 2030, with 13 recorded violations in the last three years.

Treatment technology

Treatment structures identified at this facility. Exact unit counts are available in Klarifi.

Biosolids Mechanical Dewatering

unit process

Disinfection, UV

unit process

Suspended Growth, Aerobic

unit process

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Compliance snapshot (last 3 years)

Total violations: 13

Effluent violations: 13

Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.

Key contacts

Decision-makers at Williamstown/dry Ridge WRF.

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Nearby wastewater treatment plants in Kentucky

Grant County STP

Dry Ridge · 8 mi away

0.19 MGD

Corinth STP

Corinth · 10 mi away

0.02 MGD

Willow Pointe Sanitation Co

Glencoe · 12 mi away

0.009 MGD

Walton STP

Walton · 16 mi away

0.68 MGD

Falmouth STP (new)

Falmouth · 17 mi away

0.25 MGD

Butler STP

Butler · 17 mi away

0.04 MGD

Warsaw STP

Warsaw · 18 mi away

0.19 MGD

Cynthiana STP (new)

Cynthiana · 24 mi away

0.93 MGD

Williamstown/dry Ridge WRF: 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.

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