What is the address of Lake Cornelia Sanitary District?

The address on the plant’s EPA facility record is 1860 O'Brien Avenue, Clarion, IA 50525, in Wright County. Its coordinates are 42.7889, -93.7003. For some plants the record holds the utility’s mailing address rather than the plant gate.

What treatment technology does Lake Cornelia Sanitary District use?

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

What is the NPDES permit for Lake Cornelia Sanitary District?

The facility discharges under NPDES permit IA0066401, currently effective, expiring December 2028.

Is Lake Cornelia Sanitary District in compliance?

Discharge monitoring reports show 2 violations at Lake Cornelia Sanitary District in the last three years, 2 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Lake Cornelia Sanitary District and how do I contact them?

Lake Cornelia Sanitary District is a publicly owned treatment works in Clarion, Iowa. Klarifi lists 1 verified decision-maker contact for this facility, available with a free trial.

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Lake Cornelia Sanitary District

1860 O'Brien Avenue, Clarion, IA 50525 · Wright County · Publicly Owned Treatment Works

Average flow: —

Design flow: —

NPDES permit: IA0066401; Effective

Permit expires: December 2028

Population served: —; CWNS 2022

Lake Cornelia Sanitary District is a publicly owned wastewater treatment plant in Clarion, Wright County, Iowa. It discharges under NPDES permit IA0066401 (effective), which expires in December 2028, with 2 recorded violations in the last three years.

Treatment technology

One treatment structure or unit process identified at Lake Cornelia Sanitary District.

Available with a free Klarifi account

See the full treatment train at Lake Cornelia Sanitary District: structures, unit processes and planned upgrades, with exact unit counts.

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Compliance snapshot (last 3 years)

Total violations: 2

Effluent violations: 2

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

Key contacts

1 verified contact for Lake Cornelia Sanitary District, with validated emails and direct phone numbers.

Unlock 1 verified contact

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

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Lake Cornelia Sanitary District: 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 11, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Sludge dewatering · Biological nutrient removal · all terms

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