How much wastewater does Southerly Wastewater Treatment Center treat?

Southerly Wastewater Treatment Center treats an average of 78.11 MGD.

What treatment technology does Southerly Wastewater Treatment Center use?

Klarifi has identified clarifiers, biogas balloons at the Cleveland facility.

What is the NPDES permit for Southerly Wastewater Treatment Center?

The facility discharges under NPDES permit OHL024651, currently effective, expiring December 2030.

Is Southerly Wastewater Treatment Center in compliance?

Discharge monitoring reports show 3 violations at Southerly Wastewater Treatment Center in the last three years, 3 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Southerly Wastewater Treatment Center and how do I contact them?

Southerly Wastewater Treatment Center is a publicly owned treatment works in Cleveland, Ohio. Klarifi lists 1 verified decision-maker contact for this facility, available with a free trial.

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Southerly Wastewater Treatment Center

Cleveland, OH · Cuyahoga County · Publicly Owned Treatment Works

Average flow: 78.11 MGD

Design flow: —

NPDES permit: OHL024651; Effective

Permit expires: December 2030

Population served: 555,185; CWNS 2022

Southerly Wastewater Treatment Center is a publicly owned wastewater treatment works in Cleveland, Cuyahoga County, Ohio treating an average of 78.11 million gallons per day, serving about 555,185 residents. Treatment on site includes clarifiers, biogas balloons. It discharges under NPDES permit OHL024651 (effective), which expires in December 2030, with 3 recorded violations 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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Biogas balloons

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Compliance snapshot (last 3 years)

Total violations: 3

Effluent violations: 3

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

Key contacts

1 verified contact for Southerly Wastewater Treatment Center, with validated emails and direct phone numbers.

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Names, validated emails and direct phone numbers for decision-makers at Southerly Wastewater Treatment Center, plus the full compliance history and discharge data.

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Southerly Wastewater Treatment Center: 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 May 23, 2025.

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