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Chickasha WWTP

N2850 Rd, Chickasha, OK 73018 · Grady County · Publicly Owned Treatment Works

Average flow
1.41 MGD
Design flow
4.5 MGD
NPDES permit
OK0026018
Effective
Permit expires
December 2026
Population served
18,210
CWNS 2022

Chickasha WWTP is a publicly owned wastewater treatment works in Chickasha, Grady County, Oklahoma treating an average of 1.41 million gallons per day against a permitted design capacity of 4.5 MGD, serving about 18,210 residents. It discharges under NPDES permit OK0026018 (effective), which expires in December 2026, with 6 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in March 2006.

Treatment technology

2 treatment structures and unit processes identified at Chickasha WWTP.

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Compliance snapshot (last 3 years)

Total violations
6
Effluent violations
4

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

EPA enforcement history

Federal civil enforcement cases, compliance inspections and informal actions recorded for Chickasha WWTP in EPA's ICIS system.

Formal actions
1
0 since FY2020
Penalties assessed
$840
all cases
EPA inspections
1
latest Nov 2005

Latest case · Mar 2006

Chickasha City of Wastewater Treatment Plant

Administrative order · CAA, Prevention of Accidental Release/Risk Management Plans (RMPs) · Final Order With Penalty · Penalty $840

EPA's description of the case:

“Failed to comply with the Risk Managment Plan”

Source: EPA ECHO, civil enforcement case 06-2006-3540.

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Every action against Chickasha WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.

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Key contacts

Decision-makers at Chickasha WWTP.

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Nearby wastewater treatment plants in Oklahoma

Verden, Town Of

Verden · 10 mi away

0.07 MGD

Anadarko Pwa

Anadarko · 18 mi away

0.39 MGD

Cyril, Town Of

Cyril · 19 mi away

—

Tuttle, City Of

Tuttle · 19 mi away

0.05 MGD

Minco WWTF

Minco · 19 mi away

0.03 MGD

Lindsay, City Of

Lindsay · 23 mi away

0.1 MGD

Newcastle Public Works Auth.

Newcastle · 24 mi away

0.52 MGD

Union City Wwt Facility

Union City · 24 mi away

0.1 MGD

Chickasha 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 March 14, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Oxidation ditch · Anaerobic digester · all terms


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