How much wastewater does Gardner - Kill Creek treat?

Gardner - Kill Creek treats an average of 1.83 MGD.

What treatment technology does Gardner - Kill Creek use?

Klarifi has identified clarifiers, carrousels / oxidation ditches at the Gardner facility.

What is the NPDES permit for Gardner - Kill Creek?

The facility discharges under NPDES permit KS0095605, currently effective, expiring October 2026.

Is Gardner - Kill Creek in compliance?

Discharge monitoring reports show 79 violations at Gardner - Kill Creek in the last three years, 22 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Gardner - Kill Creek and how do I contact them?

Gardner - Kill Creek is a publicly owned treatment works in Gardner, Kansas. Klarifi lists 8 verified decision-maker contacts for this facility, available with a free trial.

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Gardner - Kill Creek

Gardner, KS · Johnson County · Publicly Owned Treatment Works

Average flow: 1.83 MGD

Design flow: —

NPDES permit: KS0095605; Effective

Permit expires: October 2026

Population served: 20,208; CWNS 2022

Gardner - Kill Creek is a publicly owned wastewater treatment plant in Gardner, Johnson County, Kansas treating an average of 1.83 million gallons per day, serving about 20,208 residents. Treatment on site includes clarifiers, carrousels / oxidation ditches. It discharges under NPDES permit KS0095605 (effective), which expires in October 2026, with 79 recorded violations in the last three years.

Treatment technology

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

Clarifiers

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Carrousels / oxidation ditches

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Compliance snapshot (last 3 years)

Total violations: 79

Effluent violations: 22

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

Key contacts

8 verified contacts for Gardner - Kill Creek, with validated emails and direct phone numbers.

Unlock 8 verified contacts (5 more than shown)

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

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Gardner - Kill Creek: 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 May 18, 2025.

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