What is the address of Grant County STP?

The address on the plant’s EPA facility record is 605 Claiborne Dr, Dry Ridge, KY 41035, in Grant County. Its coordinates are 38.7546, -84.6227. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Grant County STP treat?

Grant County STP treats an average of 0.22 MGD and is permitted for a design flow of 0.3 MGD.

What treatment technology does Grant County STP use?

Klarifi has identified 5 treatment structures and unit processes at the Dry Ridge facility. The full treatment train, with exact unit counts, is shown in Klarifi with a free account.

What is the NPDES permit for Grant County STP?

The facility discharges under NPDES permit KY0091634, currently effective, expiring October 2028.

Is Grant County STP in compliance?

Discharge monitoring reports show 22 violations at Grant County STP in the last three years, 22 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Grant County STP and how do I contact them?

Grant County STP is a publicly owned treatment works in Dry Ridge, Kentucky. Klarifi lists decision-maker contacts for this facility, available with a free trial.

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Grant County STP

605 Claiborne Dr, Dry Ridge, KY 41035 · Grant County · Publicly Owned Treatment Works

Average flow: 0.22 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 0.22 million gallons per day against a permitted design capacity of 0.3 MGD, serving about 5,455 residents. It discharges under NPDES permit KY0091634 (effective), which expires in October 2028, with 22 recorded violations in the last three years.

Treatment technology

5 treatment structures and unit processes identified at Grant County STP.

Available with a free Klarifi account

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

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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.

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Nearby wastewater treatment plants in Kentucky

Walton STP

Walton · 7 mi away

0.72 MGD

Williamstown/dry Ridge WRF

Williamstown · 8 mi away

0.75 MGD

Willow Pointe Sanitation Co

Glencoe · 9 mi away

0.01 MGD

Butler STP

Butler · 13 mi away

0.04 MGD

Warsaw STP

Warsaw · 15 mi away

0.2 MGD

Falmouth STP (new)

Falmouth · 16 mi away

0.44 MGD

Corinth STP

Corinth · 18 mi away

0.02 MGD

Carrollton Regional WWTP

Carrollton · 28 mi away

1.15 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 October 26, 2026; facility record last updated November 26, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · WWTP · Biosolids · all terms

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