What is the address of Galva Southwest STP?

The address on the plant’s EPA facility record is SW 4th St & Bnsf Rr, Galva, IL 61434, in Henry County. Its coordinates are 41.1514, -90.0503. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Galva Southwest STP treat?

Galva Southwest STP treats an average of 0.58 MGD and is permitted for a design flow of 1 MGD.

What treatment technology does Galva Southwest STP use?

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

What is the NPDES permit for Galva Southwest STP?

The facility discharges under NPDES permit IL0023647, currently effective, expiring January 2030.

Is Galva Southwest STP in compliance?

Discharge monitoring reports show 85 violations at Galva Southwest STP in the last three years, 85 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Galva Southwest STP and how do I contact them?

Galva Southwest STP is a publicly owned treatment works in Galva, Illinois. Klarifi lists 1 verified decision-maker contact for this facility, available with a free trial.

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Galva Southwest STP

SW 4th St & Bnsf Rr, Galva, IL 61434 · Henry County · Publicly Owned Treatment Works

Average flow: 0.58 MGD

Design flow: 1 MGD

NPDES permit: IL0023647; Effective

Permit expires: January 2030

Population served: 1,444; CWNS 2022

Galva Southwest STP is a publicly owned wastewater treatment works in Galva, Henry County, Illinois treating an average of 0.58 million gallons per day against a permitted design capacity of 1 MGD, serving about 1,444 residents. It discharges under NPDES permit IL0023647 (effective), which expires in January 2030, with 85 recorded violations in the last three years.

Treatment technology

One treatment structure or unit process identified at Galva Southwest STP.

Available with a free Klarifi account

See the full treatment train at Galva Southwest STP: structures, unit processes and planned upgrades, with exact unit counts.

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Compliance snapshot (last 3 years)

Total violations: 85

Effluent violations: 85

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

Key contacts

1 verified contact for Galva Southwest STP, with validated emails and direct phone numbers.

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

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Victoria Stp, Village Of

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Kewanee STP

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Oneida Sanitary District - North STP

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Toulon Stp, City Of

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Oneida Sanitary District South - STP

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Galva Southwest 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 October 10, 2026.

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

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