What is the address of Delta WWTP?

The address on the plant’s EPA facility record is Center St, Delta, IA 52550, in Keokuk County. Its coordinates are 41.3188, -92.3348. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Delta WWTP treat?

Delta WWTP treats an average of 0.01 MGD and is permitted for a design flow of 0.1 MGD.

What treatment technology does Delta WWTP use?

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

What is the NPDES permit for Delta WWTP?

The facility discharges under NPDES permit IA0070742, currently effective, expiring October 2029.

Is Delta WWTP in compliance?

Discharge monitoring reports show 25 violations at Delta WWTP in the last three years, 25 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Delta WWTP and how do I contact them?

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

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Delta WWTP

Center St, Delta, IA 52550 · Keokuk County · Publicly Owned Treatment Works

Average flow: 0.01 MGD

Design flow: 0.1 MGD

NPDES permit: IA0070742; Effective

Permit expires: October 2029

Population served: 427; CWNS 2022

Delta WWTP is a publicly owned wastewater treatment works in Delta, Keokuk County, Iowa treating an average of 0.01 million gallons per day against a permitted design capacity of 0.1 MGD, serving about 427 residents. It discharges under NPDES permit IA0070742 (effective), which expires in October 2029, with 25 recorded violations in the last three years.

Treatment technology

2 treatment structures and unit processes identified at Delta WWTP.

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 25

Effluent violations: 25

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

Key contacts

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

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

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Nearby wastewater treatment plants in Iowa

What Cheer WWTP

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Sigourney · 6 mi away

0.21 MGD

Rose Hill City Of STP

Rose Hill · 7 mi away

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Fremont City Of STP

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Keomah Village City Of STP

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Martinsburg WWTP

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Keswick, City Of STP

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Delta 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 20, 2025.

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

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