How much wastewater does Lennox, City Of treat?

Lennox, City Of treats an average of 0.18 MGD and is permitted for a design flow of 0.3 MGD.

What treatment technology does Lennox, City Of use?

Klarifi has identified uncovered lagoons at the Lennox facility.

What is the NPDES permit for Lennox, City Of?

The facility discharges under NPDES permit SD0021768, currently effective, expiring December 2027.

Is Lennox, City Of in compliance?

Discharge monitoring reports show 3 violations at Lennox, City Of in the last three years, 3 of them effluent limit exceedances. The full history is available in Klarifi.

Are there capital improvement projects planned in Lennox, SD?

Yes. Lennox's capital improvement plan lists 1 water, sewer and wastewater projects worth $1M starting between 2029 and 2029. Line items and the people behind them are in Klarifi.

Who operates Lennox, City Of and how do I contact them?

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

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Lennox, City Of

Lennox, SD · Lincoln County · Publicly Owned Treatment Works

Average flow: 0.18 MGD

Design flow: 0.3 MGD

NPDES permit: SD0021768; Effective

Permit expires: December 2027

Population served: —; CWNS 2022

Lennox, City Of is a publicly owned wastewater treatment plant in Lennox, Lincoln County, South Dakota treating an average of 0.18 million gallons per day against a permitted design capacity of 0.3 MGD. Treatment on site includes uncovered lagoons. It discharges under NPDES permit SD0021768 (effective), which expires in December 2027, with 3 recorded violations in the last three years.

Treatment technology

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

Uncovered lagoons

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Compliance snapshot (last 3 years)

Total violations: 3

Effluent violations: 3

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

Capital improvement projects in Lennox

Lennox's capital improvement plan lists 1 water, sewer and wastewater line items worth $1M starting 2029–2029. The largest budgeted items are shown here.

Project	Budget	Years
Lewis & Clark Regional Water System Expansion	$1,232,909	2029–2029

Full project details — scope, funding source, engineering consultant and the decision-makers behind each project — are available in Klarifi, along with similar wastewater capital projects in other cities.

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Key contacts

Decision-makers at Lennox, City Of.

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Nearby wastewater treatment plants in South Dakota

Chancellor, Town Of

Chancellor · 5 mi away

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Worthing, City Of

Worthing · 7 mi away

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Tea, City Of

Tea, City Of · 8 mi away

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Hurley - City Of

Hurley · 10 mi away

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Harrisburg - City Of

Harrisburg, City Of · 12 mi away

0.47 MGD

Viborg - City Of

Viborg · 14 mi away

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Marion, City Of

Marion · 18 mi away

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Beresford, City Of

Beresford · 18 mi away

0.19 MGD

Lennox, City Of: 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 November 19, 2025.

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