How much wastewater does Ruthven City Of STP treat?

Ruthven City Of STP treats an average of 0.1 MGD and is permitted for a design flow of 0.97 MGD.

What treatment technology does Ruthven City Of STP use?

Klarifi has identified 2 treatment structures and unit processes at the Ruthven facility. The full treatment train, with exact unit counts, is shown in Klarifi with a free account.

What is the NPDES permit for Ruthven City Of STP?

The facility discharges under NPDES permit IA0032441, currently effective, expiring May 2028.

Is Ruthven City Of STP in compliance?

Discharge monitoring reports show 7 violations at Ruthven City Of STP in the last three years, 5 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Ruthven City Of STP and how do I contact them?

Ruthven City Of STP is a publicly owned treatment works in Ruthven, Iowa. Klarifi lists decision-maker contacts for this facility, available with a free trial.

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Ruthven City Of STP

Ruthven, IA 51358 · Palo Alto County · Publicly Owned Treatment Works

Average flow: 0.1 MGD

Design flow: 0.97 MGD

NPDES permit: IA0032441; Effective

Permit expires: May 2028

Population served: 725; CWNS 2022

Ruthven City Of STP is a publicly owned wastewater treatment works in Ruthven, Palo Alto County, Iowa treating an average of 0.1 million gallons per day against a permitted design capacity of 0.97 MGD, serving about 725 residents. It discharges under NPDES permit IA0032441 (effective), which expires in May 2028, with 7 recorded violations in the last three years.

Treatment technology

2 treatment structures and unit processes identified at Ruthven City Of STP.

Available with a free Klarifi account

See the full treatment train at Ruthven City Of STP: structures, unit processes and planned upgrades, with exact unit counts.

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Compliance snapshot (last 3 years)

Total violations: 7

Effluent violations: 5

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

Key contacts

Decision-makers at Ruthven City Of STP.

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Nearby wastewater treatment plants in Iowa

Ayrshire, City Of STP

Ayrshire · 7 mi away

—

City Of Emmetsburg Treatment Plant

Emmetsburg · 11 mi away

2.38 MGD

Graettinger City Of STP

Graettinger · 11 mi away

—

Spencer, City Of

Spencer · 12 mi away

1.75 MGD

Terril WWTP

Terril · 12 mi away

—

Webb, City Of STP

Webb · 13 mi away

—

Fostoria WWTP

Fostoria · 14 mi away

—

Greenville, City Of STP

Greenville · 14 mi away

0.0031 MGD

Ruthven City Of STP: 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 September 1, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Biosolids · Filter press · all terms

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