What is the address of Napoleon WWTP?

The address on the plant’s EPA facility record is 735 East Washington St, Napoleon, OH 43545, in Henry County. Its coordinates are 41.3939, -84.1152. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Napoleon WWTP treat?

Napoleon WWTP treats an average of 1.7 MGD and is permitted for a design flow of 2.5 MGD.

What treatment technology does Napoleon WWTP use?

Klarifi has identified 3 treatment structures and unit processes at the Napoleon facility. The full treatment train, with exact unit counts, is shown in Klarifi with a free account.

What is the NPDES permit for Napoleon WWTP?

The facility discharges under NPDES permit OH0020893, currently effective, expiring March 2031.

Is Napoleon WWTP in compliance?

Discharge monitoring reports show 4 violations at Napoleon WWTP in the last three years, 4 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Napoleon WWTP and how do I contact them?

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

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Napoleon WWTP

735 East Washington St, Napoleon, OH 43545 · Henry County · Publicly Owned Treatment Works

Average flow: 1.7 MGD

Design flow: 2.5 MGD

NPDES permit: OH0020893; Effective

Permit expires: March 2031

Population served: 8,794; CWNS 2022

Napoleon WWTP is a publicly owned wastewater treatment works in Napoleon, Henry County, Ohio treating an average of 1.7 million gallons per day against a permitted design capacity of 2.5 MGD, serving about 8,794 residents. It discharges under NPDES permit OH0020893 (effective), which expires in March 2031, with 4 recorded violations in the last three years.

Treatment technology

3 treatment structures and unit processes identified at Napoleon WWTP.

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 4

Effluent violations: 4

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

Key contacts

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

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

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Nearby wastewater treatment plants in Ohio

Liberty Center WWTP

Liberty Center · 6 mi away

0.07 MGD

Mcclure WTP

Mcclure · 9 mi away

—

Holgate WWTP

Holgate · 9 mi away

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Hamler WWTP

Hamler · 11 mi away

0.18 MGD

Pettisville WWTP

Pettisville · 12 mi away

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Lhs Maumee Youth Center

Liberty Center · 12 mi away

0.0026 MGD

Defiance Water Pollution Control Plant

Defiance · 13 mi away

2.87 MGD

Swanton WRRF

Swanton · 13 mi away

0.46 MGD

Napoleon 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 April 5, 2025.

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

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