What is the address of Leslie WWTP?

The address on the plant’s EPA facility record is 640 Washburn, Leslie, MI 49251, in Ingham County. Its coordinates are 42.4417, -84.4327. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Leslie WWTP treat?

Leslie WWTP treats an average of 0.24 MGD.

What treatment technology does Leslie WWTP use?

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

What is the NPDES permit for Leslie WWTP?

The facility discharges under NPDES permit MI0020796, currently effective, expiring October 2027.

Is Leslie WWTP in compliance?

Discharge monitoring reports show 41 violations at Leslie WWTP in the last three years, 5 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Leslie WWTP and how do I contact them?

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

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Leslie WWTP

640 Washburn, Leslie, MI 49251 · Ingham County · Publicly Owned Treatment Works

Average flow: 0.24 MGD

Design flow: —

NPDES permit: MI0020796; Effective

Permit expires: October 2027

Population served: 1,539; CWNS 2022

Leslie WWTP is a publicly owned wastewater treatment works in Leslie, Ingham County, Michigan treating an average of 0.24 million gallons per day, serving about 1,539 residents. It discharges under NPDES permit MI0020796 (effective), which expires in October 2027, with 41 recorded violations in the last three years.

Treatment technology

2 treatment structures and unit processes identified at Leslie WWTP.

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 41

Effluent violations: 5

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

Key contacts

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

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

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Mason WWTP

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Jackson WWTP

Jackson · 11 mi away

11.39 MGD

Springport Wwsl

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Delhi Twp WWTP

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Parma Wwsl

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Leoni Twp WWTP

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Clarence Twp-Duck Lk Wwsl

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Dimondale/windsor WWTP

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Leslie 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 May 19, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Ozonation · Activated sludge · all terms

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