What is the address of Lake City WWTP?

The address on the plant’s EPA facility record is 1708 N 37th Rd, Lake City, IA 51449, in Calhoun County. Its coordinates are 42.2797, -94.7569. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Lake City WWTP treat?

Lake City WWTP treats an average of 0.27 MGD and is permitted for a design flow of 0.6 MGD.

What treatment technology does Lake City WWTP use?

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

What is the NPDES permit for Lake City WWTP?

The facility discharges under NPDES permit IA0020842, currently effective, expiring September 2028.

Is Lake City WWTP in compliance?

Discharge monitoring reports show 11 violations at Lake City WWTP in the last three years, 11 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Lake City WWTP and how do I contact them?

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

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Lake City WWTP

1708 N 37th Rd, Lake City, IA 51449 · Calhoun County · Publicly Owned Treatment Works

Average flow: 0.27 MGD

Design flow: 0.6 MGD

NPDES permit: IA0020842; Effective

Permit expires: September 2028

Population served: 1,805; CWNS 2022

Lake City WWTP is a publicly owned wastewater treatment works in Lake City, Calhoun County, Iowa treating an average of 0.27 million gallons per day against a permitted design capacity of 0.6 MGD, serving about 1,805 residents. It discharges under NPDES permit IA0020842 (effective), which expires in September 2028, with 11 recorded violations in the last three years.

Treatment technology

One treatment structure or unit process identified at Lake City WWTP.

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 11

Effluent violations: 11

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 City WWTP, with validated emails and direct phone numbers.

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

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Nearby wastewater treatment plants in Iowa

Auburn City Of STP

Auburn · 6 mi away

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Lanesboro City Of STP

Lanesboro · 8 mi away

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Lidderdale WWTP

Lidderdale · 10 mi away

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Lytton City Of STP

Lytton · 11 mi away

0.17 MGD

Rockwell City WWTP

Rockwell City · 12 mi away

0.32 MGD

Breda WWTP

Breda · 13 mi away

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Twin Lakes Sanitary District STP

Rockwell City · 14 mi away

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City Of Rinard WTP

Rinard · 14 mi away

0.0018 MGD

Lake City 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 28, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Significant industrial user · WWTP · all terms

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