What is the address of Harrison WWTP?

The address on the plant’s EPA facility record is 10999 Campbell Road, Harrison, OH 45030, in Hamilton County. Its coordinates are 39.2461, -84.8077. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Harrison WWTP treat?

Harrison WWTP treats an average of 1.08 MGD and is permitted for a design flow of 2.3 MGD.

What treatment technology does Harrison WWTP use?

Klarifi has identified one treatment structure or unit process at the Harrison facility. The full treatment train, with exact unit counts, is shown in Klarifi with a free account.

What is the NPDES permit for Harrison WWTP?

The facility discharges under NPDES permit OH0021440, currently effective, expiring October 2029.

Is Harrison WWTP in compliance?

Discharge monitoring reports show 20 violations at Harrison WWTP in the last three years, 20 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Harrison WWTP and how do I contact them?

Harrison WWTP is a publicly owned treatment works in Harrison, Ohio. Klarifi lists decision-maker contacts for this facility, available with a free trial.

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Harrison WWTP

10999 Campbell Road, Harrison, OH 45030 · Hamilton County · Publicly Owned Treatment Works

Average flow: 1.08 MGD

Design flow: 2.3 MGD

NPDES permit: OH0021440; Effective

Permit expires: October 2029

Population served: 8,879; CWNS 2022

Harrison WWTP is a publicly owned wastewater treatment works in Harrison, Hamilton County, Ohio treating an average of 1.08 million gallons per day against a permitted design capacity of 2.3 MGD, serving about 8,879 residents. It discharges under NPDES permit OH0021440 (effective), which expires in October 2029, with 20 recorded violations in the last three years.

Treatment technology

One treatment structure or unit process identified at Harrison WWTP.

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 20

Effluent violations: 20

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

Key contacts

Decision-makers at Harrison WWTP.

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Harrison WWTP: 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 January 25, 2025.

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

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