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Norman (main) Wwt

Norman, OK · Cleveland County · Publicly Owned Treatment Works

Average flow
10.7 MGD
Design flow
16 MGD
NPDES permit
OK0029190
Effective
Permit expires
October 2030
Population served
128,026
CWNS 2022

Norman (main) Wwt is a publicly owned wastewater treatment works in Norman, Cleveland County, Oklahoma treating an average of 10.7 million gallons per day against a permitted design capacity of 16 MGD, serving about 128,026 residents. Treatment on site includes clarifiers, uncovered lagoons, biogas silos. It discharges under NPDES permit OK0029190 (effective), which expires in October 2030, with 61 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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Uncovered lagoons

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Biogas silos

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Compliance snapshot (last 3 years)

Total violations
61
Effluent violations
49

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

Key contacts

3 verified contacts for Norman (main) Wwt, with validated emails and direct phone numbers.

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Names, validated emails and direct phone numbers for decision-makers at Norman (main) Wwt, plus the full compliance history and discharge data.

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Norman (main) Wwt: 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 March 2, 2025.


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