What is the address of Oto City Of STP?

The address on the plant’s EPA facility record is Highway 31 & Lenox Ave, Oto, IA 51044, in Woodbury County. Its coordinates are 42.2932, -95.8975. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Oto City Of STP treat?

Oto City Of STP is permitted for a design flow of 0.02 MGD. Its average daily flow is not available in the current EPA data.

What treatment technology does Oto City Of STP use?

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

What is the NPDES permit for Oto City Of STP?

The facility discharges under NPDES permit IA0065811, currently effective, expiring July 2027.

Is Oto City Of STP in compliance?

Discharge monitoring reports show 6 violations at Oto City Of STP in the last three years. The full history is available in Klarifi.

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

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

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Oto City Of STP

Highway 31 & Lenox Ave, Oto, IA 51044 · Woodbury County · Publicly Owned Treatment Works

Average flow: —

Design flow: 0.02 MGD

NPDES permit: IA0065811; Effective

Permit expires: July 2027

Population served: 72; CWNS 2022

Oto City Of STP is a publicly owned wastewater treatment works in Oto, Woodbury County, Iowa, serving about 72 residents. It discharges under NPDES permit IA0065811 (effective), which expires in July 2027, with 6 recorded violations in the last three years.

Treatment technology

One treatment structure or unit process identified at Oto City Of STP.

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 6

Effluent violations: 0

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

Key contacts

Decision-makers at Oto City Of STP.

No verified contacts on file yet

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Nearby wastewater treatment plants in Iowa

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Anthon · 7 mi away

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Danbury City Of STP

Danbury · 10 mi away

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Mapleton City Of STP

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Hornick City Of STP

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Correctionville City Of STP

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Battle Creek WWTP

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Oto 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 February 1, 2025.

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

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