How much wastewater does Madison-Treatment Plant treat?

Madison-Treatment Plant is permitted for a design flow of 1.6 MGD. Its average daily flow is not available in the current EPA data.

What is the NPDES permit for Madison-Treatment Plant?

The facility discharges under NPDES permit SD0020010, currently effective, expiring June 2027.

Is Madison-Treatment Plant in compliance?

Discharge monitoring reports show no violations at Madison-Treatment Plant in the last three years.

Who operates Madison-Treatment Plant and how do I contact them?

Madison-Treatment Plant is a publicly owned treatment works in Madison, South Dakota. Klarifi lists decision-maker contacts for this facility, available with a free trial.

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Madison-Treatment Plant

Q: What treatment technology does Madison-Treatment Plant use?

Klarifi has identified carrousels / oxidation ditches, biogas silos, biogas balloons at the Madison facility.

Madison, SD · Lake County · Publicly Owned Treatment Works

Average flow: —

Design flow: 1.6 MGD

NPDES permit: SD0020010; Effective

Permit expires: June 2027

Population served: —; CWNS 2022

Madison-Treatment Plant is a publicly owned wastewater treatment works in Madison, Lake County, South Dakota. Treatment on site includes carrousels / oxidation ditches, biogas silos, biogas balloons. It discharges under NPDES permit SD0020010 (effective), which expires in June 2027, with 0 recorded violations in the last three years.

Treatment technology

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

Carrousels / oxidation ditches

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Biogas silos

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Biogas balloons

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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 Madison-Treatment Plant.

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Madison-Treatment 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 September 11, 2026; facility record last updated June 10, 2025.

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