What is the address of Beloit WWTP?

The address on the plant’s EPA facility record is 18521 Derr Ave., Beloit, OH 44609, in Mahoning County. Its coordinates are 40.9157, -81.0040. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Beloit WWTP treat?

Beloit WWTP treats an average of 0.07 MGD and is permitted for a design flow of 0.19 MGD.

What treatment technology does Beloit WWTP use?

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

What is the NPDES permit for Beloit WWTP?

The facility discharges under NPDES permit OH0024091, currently effective, expiring February 2028.

Is Beloit WWTP in compliance?

Discharge monitoring reports show 63 violations at Beloit WWTP in the last three years, 10 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Beloit WWTP and how do I contact them?

Beloit WWTP is a publicly owned treatment works in Beloit, Ohio. Klarifi lists 2 verified decision-maker contacts for this facility, available with a free trial.

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Beloit WWTP

18521 Derr Ave., Beloit, OH 44609 · Mahoning County · Publicly Owned Treatment Works

Average flow: 0.07 MGD

Design flow: 0.19 MGD

NPDES permit: OH0024091; Effective

Permit expires: February 2028

Population served: 903; CWNS 2022

Beloit WWTP is a publicly owned wastewater treatment works in Beloit, Mahoning County, Ohio treating an average of 0.07 million gallons per day against a permitted design capacity of 0.19 MGD, serving about 903 residents. It discharges under NPDES permit OH0024091 (effective), which expires in February 2028, with 63 recorded violations in the last three years.

Treatment technology

One treatment structure or unit process identified at Beloit WWTP.

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 63

Effluent violations: 10

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

Key contacts

2 verified contacts for Beloit WWTP, with validated emails and direct phone numbers.

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

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Damascus WWTP

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Penn Star Mhp

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City Of Salem - Wastewater Plant

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Alliance Water Tr. Plant And Wastewater Tr. Plant

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Beloit 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 November 29, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Sludge dewatering · Biological nutrient removal · all terms

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