What is the address of Manning WWTP?

The address on the plant’s EPA facility record is 8th St, Manning, IA 51455, in Carroll County. Its coordinates are 41.9043, -95.0700. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Manning WWTP treat?

Manning WWTP treats an average of 0.12 MGD and is permitted for a design flow of 0.43 MGD.

What treatment technology does Manning WWTP use?

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

What is the NPDES permit for Manning WWTP?

The facility discharges under NPDES permit IA0023337, currently effective, expiring December 2028.

Is Manning WWTP in compliance?

Discharge monitoring reports show 17 violations at Manning WWTP in the last three years, 17 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Manning WWTP and how do I contact them?

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

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Manning WWTP

8th St, Manning, IA 51455 · Carroll County · Publicly Owned Treatment Works

Average flow: 0.12 MGD

Design flow: 0.43 MGD

NPDES permit: IA0023337; Effective

Permit expires: December 2028

Population served: 1,551; CWNS 2022

Manning WWTP is a publicly owned wastewater treatment works in Manning, Carroll County, Iowa treating an average of 0.12 million gallons per day against a permitted design capacity of 0.43 MGD, serving about 1,551 residents. It discharges under NPDES permit IA0023337 (effective), which expires in December 2028, with 17 recorded violations in the last three years.

Treatment technology

One treatment structure or unit process identified at Manning WWTP.

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

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Compliance snapshot (last 3 years)

Total violations: 17

Effluent violations: 17

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

Key contacts

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

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

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Manning 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 7, 2025.

Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Anaerobic digester · Lift station · all terms

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