What is the address of Stanwood WWTP?

The address on the plant’s EPA facility record is South Ave, Stanwood, IA 52337, in Cedar County. Its coordinates are 41.8930, -91.1597. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Stanwood WWTP treat?

Stanwood WWTP treats an average of 0.21 MGD and is permitted for a design flow of 1.5 MGD.

What treatment technology does Stanwood WWTP use?

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

What is the NPDES permit for Stanwood WWTP?

The facility discharges under NPDES permit IA0033758, currently effective, expiring August 2031.

Is Stanwood WWTP in compliance?

Discharge monitoring reports show 16 violations at Stanwood WWTP in the last three years, 1 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Stanwood WWTP and how do I contact them?

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

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Stanwood WWTP

South Ave, Stanwood, IA 52337 · Cedar County · Publicly Owned Treatment Works

Average flow: 0.21 MGD

Design flow: 1.5 MGD

NPDES permit: IA0033758; Effective

Permit expires: August 2031

Population served: 637; CWNS 2022

Stanwood WWTP is a publicly owned wastewater treatment works in Stanwood, Cedar County, Iowa treating an average of 0.21 million gallons per day against a permitted design capacity of 1.5 MGD, serving about 637 residents. It discharges under NPDES permit IA0033758 (effective), which expires in August 2031, with 16 recorded violations in the last three years.

Treatment technology

One treatment structure or unit process identified at Stanwood WWTP.

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 16

Effluent violations: 1

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

Key contacts

1 verified contact for Stanwood WWTP, with validated emails and direct phone numbers.

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

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Nearby wastewater treatment plants in Iowa

Mechanicsville WWTP

Mechanicsville · 4 mi away

0.13 MGD

Clarence WWTP

Clarence · 5 mi away

0.3 MGD

Olin WWTP

Olin · 7 mi away

—

Tipton WWTP (west)

Tipton · 9 mi away

0.39 MGD

Oxford Junction WWTP

Oxford Junction · 12 mi away

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Lisbon WWTP

Lisbon · 12 mi away

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Lowden City Of STP

Lowden · 12 mi away

0.07 MGD

Mount Vernon City Of STP

Mount Vernon · 13 mi away

0.22 MGD

Stanwood 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 July 29, 2026.

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

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