What is the address of Willis Wastewater Plant?

The address on the plant’s EPA facility record is 726 Wisconsin, Holton, KS 66436, in Jackson County. Its coordinates are 39.4712, -95.7227. For some plants the record holds the utility’s mailing address rather than the plant gate.

What treatment technology does Willis Wastewater Plant use?

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

What is the NPDES permit for Willis Wastewater Plant?

The facility discharges under NPDES permit KS0092037, currently effective, expiring June 2028.

Is Willis Wastewater Plant in compliance?

Discharge monitoring reports show no violations at Willis Wastewater Plant in the last three years.

Who operates Willis Wastewater Plant and how do I contact them?

Willis Wastewater Plant is a publicly owned treatment works in Holton, Kansas. Klarifi lists decision-maker contacts for this facility, available with a free trial.

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Willis Wastewater Plant

726 Wisconsin, Holton, KS 66436 · Jackson County · Publicly Owned Treatment Works

Average flow: —

Design flow: —

NPDES permit: KS0092037; Effective

Permit expires: June 2028

Population served: 71; CWNS 2022

Willis Wastewater Plant is a publicly owned wastewater treatment works in Holton, Jackson County, Kansas, serving about 71 residents. It discharges under NPDES permit KS0092037 (effective), which expires in June 2028, with 0 recorded violations in the last three years.

Treatment technology

2 treatment structures and unit processes identified at Willis Wastewater Plant.

Available with a free Klarifi account

See the full treatment train at Willis Wastewater Plant: structures, unit processes and planned upgrades, with exact unit counts.

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Compliance snapshot (last 3 years)

Total violations: 0

Effluent violations: 0

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

Key contacts

Decision-makers at Willis Wastewater Plant.

No verified contacts on file yet

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Nearby wastewater treatment plants in Kansas

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Holton · 1 mi away

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Willis Wastewater Plant: 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 19, 2026; facility record last updated September 12, 2026.

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

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