What is the address of Carlisle STP?

The address on the plant’s EPA facility record is Hwy 36 W, Carlisle, KY 40311, in Nicholas County. Its coordinates are 38.3140, -84.0595. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Carlisle STP treat?

Carlisle STP treats an average of 0.29 MGD and is permitted for a design flow of 0.35 MGD.

What treatment technology does Carlisle STP use?

Klarifi has identified 2 treatment structures and unit processes at the Carlisle facility. The full treatment train, with exact unit counts, is shown in Klarifi with a free account.

What is the NPDES permit for Carlisle STP?

The facility discharges under NPDES permit KY0020923, currently effective, expiring June 2031.

Is Carlisle STP in compliance?

Discharge monitoring reports show 91 violations at Carlisle STP in the last three years, 17 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Carlisle STP and how do I contact them?

Carlisle STP is a publicly owned treatment works in Carlisle, Kentucky. Klarifi lists 1 verified decision-maker contact for this facility, available with a free trial.

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Carlisle STP

Hwy 36 W, Carlisle, KY 40311 · Nicholas County · Publicly Owned Treatment Works

Average flow: 0.29 MGD

Design flow: 0.35 MGD

NPDES permit: KY0020923; Effective

Permit expires: June 2031

Population served: 2,074; CWNS 2022

Carlisle STP is a publicly owned wastewater treatment works in Carlisle, Nicholas County, Kentucky treating an average of 0.29 million gallons per day against a permitted design capacity of 0.35 MGD, serving about 2,074 residents. It discharges under NPDES permit KY0020923 (effective), which expires in June 2031, with 91 recorded violations in the last three years.

Treatment technology

2 treatment structures and unit processes identified at Carlisle STP.

Available with a free Klarifi account

See the full treatment train at Carlisle STP: structures, unit processes and planned upgrades, with exact unit counts.

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Compliance snapshot (last 3 years)

Total violations: 91

Effluent violations: 17

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

Key contacts

1 verified contact for Carlisle STP, with validated emails and direct phone numbers.

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Names, validated emails and direct phone numbers for decision-makers at Carlisle STP, plus the full compliance history and discharge data.

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Nearby wastewater treatment plants in Kentucky

Kentucky American Water Co - Millersburg

Millersburg · 5 mi away

0.16 MGD

Paris STP

Paris · 12 mi away

1.74 MGD

North Middletown WWTP

North Middletown · 12 mi away

0.09 MGD

Cynthiana STP (new)

Cynthiana · 14 mi away

0.87 MGD

Mount Olivet STP

Mount Olivet · 15 mi away

0.03 MGD

Mount Sterling Hinkston Creek STP

Mt Sterling · 17 mi away

1.82 MGD

Flemingsburg STP

Flemingsburg · 20 mi away

0.5 MGD

Bath County Industrial Park

Owingsville · 20 mi away

0.17 MGD

Carlisle 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 October 26, 2026; facility record last updated September 26, 2026.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Filter press · FOG · all terms

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