What is the address of North Olmsted WWTP?

The address on the plant’s EPA facility record is 23775 Mastick Rd, North Olmsted, OH 44070, in Cuyahoga County. Its coordinates are 41.4151, -81.8834. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does North Olmsted WWTP treat?

North Olmsted WWTP treats an average of 6.03 MGD and is permitted for a design flow of 7 MGD.

What treatment technology does North Olmsted WWTP use?

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

What is the NPDES permit for North Olmsted WWTP?

The facility discharges under NPDES permit OH0026778, currently effective, expiring July 2030.

Is North Olmsted WWTP in compliance?

Discharge monitoring reports show 5 violations at North Olmsted WWTP in the last three years, 5 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates North Olmsted WWTP and how do I contact them?

North Olmsted WWTP is a publicly owned treatment works in North Olmsted, Ohio. Klarifi lists 1 verified decision-maker contact for this facility, available with a free trial.

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North Olmsted WWTP

23775 Mastick Rd, North Olmsted, OH 44070 · Cuyahoga County · Publicly Owned Treatment Works

Average flow: 6.03 MGD

Design flow: 7 MGD

NPDES permit: OH0026778; Effective

Permit expires: July 2030

Population served: 38,661; CWNS 2022

North Olmsted WWTP is a publicly owned wastewater treatment works in North Olmsted, Cuyahoga County, Ohio treating an average of 6.03 million gallons per day against a permitted design capacity of 7 MGD, serving about 38,661 residents. It discharges under NPDES permit OH0026778 (effective), which expires in July 2030, with 5 recorded violations in the last three years.

Treatment technology

2 treatment structures and unit processes identified at North Olmsted WWTP.

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 5

Effluent violations: 5

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

Key contacts

1 verified contact for North Olmsted WWTP, with validated emails and direct phone numbers.

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

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Rocky River Wastewater Treatment Plant

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Lakewood WWTP

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Strongsville Cwwtp & Sewers

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North Royalton WWTP B

North Royalton · 7 mi away

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Lorain Co Plum Creek WWTP

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Strongsville B WWTP

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North Royalton WWTP A

North Royalton · 9 mi away

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Eaton Homes WWTP

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North Olmsted 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 September 14, 2026.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Anaerobic digester · Lift station · all terms

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