How much wastewater does Cynthiana STP (new) treat?

Cynthiana STP (new) treats an average of 0.93 MGD and is permitted for a design flow of 2 MGD.

What is the NPDES permit for Cynthiana STP (new)?

The facility discharges under NPDES permit KY0105856, currently administratively continued, expiring June 2026.

Is Cynthiana STP (new) in compliance?

Discharge monitoring reports show 1 violation at Cynthiana STP (new) in the last three years, 1 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Cynthiana STP (new) and how do I contact them?

Cynthiana STP (new) is a publicly owned treatment works in Cynthiana, Kentucky. Klarifi lists decision-maker contacts for this facility, available with a free trial.

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Cynthiana STP (new)

Q: What treatment technology does Cynthiana STP (new) use?

Klarifi has identified clarifiers, carrousels / oxidation ditches, disinfection, uv, suspended growth, aerobic at the Cynthiana facility.

Cynthiana, KY · Harrison County · Publicly Owned Treatment Works

Average flow: 0.93 MGD

Design flow: 2 MGD

NPDES permit: KY0105856; Administratively continued

Permit expires: June 2026

Population served: 6,845; CWNS 2022

Cynthiana STP (new) is a publicly owned wastewater treatment works in Cynthiana, Harrison County, Kentucky treating an average of 0.93 million gallons per day against a permitted design capacity of 2 MGD, serving about 6,845 residents. Treatment on site includes clarifiers, carrousels / oxidation ditches, disinfection, uv, suspended growth, aerobic. It discharges under NPDES permit KY0105856 (administratively continued), which expires in June 2026, with 1 recorded violation 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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Carrousels / oxidation ditches

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Disinfection, UV

unit process

Suspended Growth, Aerobic

unit process

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Compliance snapshot (last 3 years)

Total violations: 1

Effluent violations: 1

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

Key contacts

Decision-makers at Cynthiana STP (new).

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Nearby wastewater treatment plants in Kentucky

Kentucky American Water Co - Millersburg

Millersburg · 10 mi away

0.16 MGD

Paris STP

Paris · 12 mi away

1.37 MGD

Carlisle STP

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Corinth STP

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Mount Olivet STP

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North Middletown WWTP

North Middletown · 20 mi away

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Falmouth STP (new)

Falmouth · 21 mi away

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Georgetown STP #3

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0.05 MGD

Cynthiana STP (new): 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 February 27, 2025.

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