What is the address of Menlo WWTP?

The address on the plant’s EPA facility record is 1/4 Mile South Of 7th St And Sherman St, Menlo, IA 50164, in Guthrie County. Its coordinates are 41.5135, -94.4030. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Menlo WWTP treat?

Menlo WWTP is permitted for a design flow of 0.07 MGD. Its average daily flow is not available in the current EPA data.

What treatment technology does Menlo WWTP use?

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

What is the NPDES permit for Menlo WWTP?

The facility discharges under NPDES permit IA0071374, currently effective, expiring December 2026.

Is Menlo WWTP in compliance?

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

Who operates Menlo WWTP and how do I contact them?

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

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Menlo WWTP

1/4 Mile South Of 7th St And Sherman St, Menlo, IA 50164 · Guthrie County · Publicly Owned Treatment Works

Average flow: —

Design flow: 0.07 MGD

NPDES permit: IA0071374; Effective

Permit expires: December 2026

Population served: 345; CWNS 2022

Menlo WWTP is a publicly owned wastewater treatment works in Menlo, Guthrie County, Iowa, serving about 345 residents. It discharges under NPDES permit IA0071374 (effective), which expires in December 2026, with 2 recorded violations in the last three years.

Treatment technology

One treatment structure or unit process identified at Menlo WWTP.

Available with a free Klarifi account

See the full treatment train at Menlo WWTP: 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 Menlo WWTP, with validated emails and direct phone numbers.

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

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Redfield WWTP

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Menlo 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 April 23, 2025.

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

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