What is the address of Pawnee?

The address on the plant’s EPA facility record is 510 Illinois Street, Pawnee, OK 74058, in Pawnee County. Its coordinates are 36.3283, -96.7928. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Pawnee treat?

Pawnee treats an average of 0.12 MGD and is permitted for a design flow of 0.5 MGD.

Has Pawnee been subject to EPA enforcement action?

EPA's enforcement records list 1 formal civil enforcement case naming Pawnee, 0 since fiscal year 2020. The latest case reached its current status in April 2008 (administrative order, final order no penalty). The full case history, with milestones, violation types and EPA's case summaries, is shown in Klarifi with a free account.

What treatment technology does Pawnee use?

Klarifi has identified one treatment structure or unit process at the Pawnee facility. The full treatment train, with exact unit counts, is shown in Klarifi with a free account.

What is the NPDES permit for Pawnee?

The facility discharges under NPDES permit OK0026654, currently effective, expiring April 2028.

Is Pawnee in compliance?

Discharge monitoring reports show 139 violations at Pawnee in the last three years, 31 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Pawnee and how do I contact them?

Pawnee is a publicly owned treatment works in Pawnee, Oklahoma. Klarifi lists 1 verified decision-maker contact for this facility, available with a free trial.

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Pawnee

510 Illinois Street, Pawnee, OK 74058 · Pawnee County · Publicly Owned Treatment Works

Average flow: 0.12 MGD

Design flow: 0.5 MGD

NPDES permit: OK0026654; Effective

Permit expires: April 2028

Population served: 2,350; CWNS 2022

Pawnee is a publicly owned wastewater treatment plant in Pawnee, Pawnee County, Oklahoma treating an average of 0.12 million gallons per day against a permitted design capacity of 0.5 MGD, serving about 2,350 residents. It discharges under NPDES permit OK0026654 (effective), which expires in April 2028, with 139 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in April 2008.

Treatment technology

One treatment structure or unit process identified at Pawnee.

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

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Compliance snapshot (last 3 years)

Total violations: 139

Effluent violations: 31

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 Pawnee in EPA's ICIS system.

Formal actions: 1; 0 since FY2020

Compliance actions: $3,500; required by EPA orders

EPA inspections: 0; none on record

Latest case · Apr 2008

Pawnee

Administrative order · SDWA, National Drinking Water Regulations · Final Order No Penalty · Compliance actions $3,500

Source: EPA ECHO, civil enforcement case 06-2008-1228.

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

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Key contacts

1 verified contact for Pawnee, with validated emails and direct phone numbers.

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

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Drumright Utilities Trust

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Pawnee: 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 November 26, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · FOG · Equalization tank · all terms

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