What is the address of Quapaw Pwa?

The address on the plant’s EPA facility record is PO Box 706, Quapaw, OK 74363, in Ottawa County. Its coordinates are 36.9524, -94.7798. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Quapaw Pwa treat?

Quapaw Pwa treats an average of 0.1 MGD and is permitted for a design flow of 0.14 MGD.

What treatment technology does Quapaw Pwa use?

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

What is the NPDES permit for Quapaw Pwa?

The facility discharges under NPDES permit OK0028258, currently effective, expiring October 2027.

Is Quapaw Pwa in compliance?

Discharge monitoring reports show 32 violations at Quapaw Pwa in the last three years, 20 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Quapaw Pwa and how do I contact them?

Quapaw Pwa is a publicly owned treatment works in Quapaw, Oklahoma. Klarifi lists 2 verified decision-maker contacts for this facility, available with a free trial.

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Quapaw Pwa

PO Box 706, Quapaw, OK 74363 · Ottawa County · Publicly Owned Treatment Works

Average flow: 0.1 MGD

Design flow: 0.14 MGD

NPDES permit: OK0028258; Effective

Permit expires: October 2027

Population served: 1,037; CWNS 2022

Quapaw Pwa is a publicly owned wastewater treatment plant in Quapaw, Ottawa County, Oklahoma treating an average of 0.1 million gallons per day against a permitted design capacity of 0.14 MGD, serving about 1,037 residents. It discharges under NPDES permit OK0028258 (effective), which expires in October 2027, with 32 recorded violations in the last three years.

Treatment technology

One treatment structure or unit process identified at Quapaw Pwa.

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 32

Effluent violations: 20

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

Key contacts

2 verified contacts for Quapaw Pwa, with validated emails and direct phone numbers.

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

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Miami WWTF-SE Plant

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Ottawa Co Rwd #1

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City Of Seneca

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Fairland Pwa

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Bluejacket Wwt

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Afton Pwa

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Seneca-Cayuga Tribe

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Quapaw Pwa: 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 October 8, 2026.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Ozonation · Activated sludge · all terms

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