Diehl Lake Collection & WWTP

Ellsworth, OH · Mahoning County · Publicly Owned Treatment Works

Average flow: 2.02 MGD

Design flow: 0.03 MGD

NPDES permit: 3602898297; Effective

Permit expires: October 2026

Treatment technology

Treatment structures identified at this facility. Exact unit counts are available in Klarifi.

Aerated lagoons

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Compliance snapshot (last 3 years)

Total violations: 13

Effluent violations: 13

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

Key contacts

Contacts for Diehl Lake Collection & WWTP are available in the Klarifi platform.

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Names, validated emails and direct phone numbers for decision-makers at Diehl Lake Collection & WWTP — plus full compliance history and discharge data.

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Data sourced from public EPA / NPDES records and Klarifi analysis. Last updated November 2025.

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