What is the address of Spring Creek STP?

The address on the plant’s EPA facility record is 3017 N. 8th Street, Springfield, IL 62707, in Sangamon County. Its coordinates are 39.8455, -89.6450. For some plants the record holds the utility’s mailing address rather than the plant gate.

How much wastewater does Spring Creek STP treat?

Spring Creek STP treats an average of 16.41 MGD.

What treatment technology does Spring Creek STP use?

Klarifi has identified 3 treatment structures and unit processes at the Springfield facility. The full treatment train, with exact unit counts, is shown in Klarifi with a free account.

What is the NPDES permit for Spring Creek STP?

The facility discharges under NPDES permit ILL021989, currently effective, expiring December 2030.

Is Spring Creek STP in compliance?

Discharge monitoring reports show 29 violations at Spring Creek STP in the last three years, 29 of them effluent limit exceedances. The full history is available in Klarifi.

Who operates Spring Creek STP and how do I contact them?

Spring Creek STP is a publicly owned treatment works in Springfield, Illinois. Klarifi lists 14 verified decision-maker contacts for this facility, available with a free trial.

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Spring Creek STP

3017 N. 8th Street, Springfield, IL 62707 · Sangamon County · Publicly Owned Treatment Works

Average flow: 16.41 MGD

Design flow: —

NPDES permit: ILL021989; Effective

Permit expires: December 2030

Population served: 106,720; CWNS 2022

Spring Creek STP is a publicly owned wastewater treatment works in Springfield, Sangamon County, Illinois treating an average of 16.41 million gallons per day, serving about 106,720 residents. It discharges under NPDES permit ILL021989 (effective), which expires in December 2030, with 29 recorded violations in the last three years.

Treatment technology

3 treatment structures and unit processes identified at Spring Creek STP.

Available with a free Klarifi account

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

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Compliance snapshot (last 3 years)

Total violations: 29

Effluent violations: 29

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

Key contacts

14 verified contacts for Spring Creek STP, with validated emails and direct phone numbers.

Unlock 14 verified contacts (11 more than shown)

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

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Nearby wastewater treatment plants in Illinois

Buffalo, Dawson, Mechanicsburg Sewer Commission STP

Buffalo · 1 mi away

0.21 MGD

Riverton STP

Riverton · 6 mi away

0.24 MGD

Athens Stp, City Of

Athens · 9 mi away

0.22 MGD

Williamsville East Stp, Village Of

Williamsville · 9 mi away

0.22 MGD

New Berlin Stp, Village Of

New Berlin · 15 mi away

0.22 MGD

Petersburg Stp, City Of

Petersburg · 16 mi away

0.31 MGD

Loami Stw, Village Of

Loami · 16 mi away

0.06 MGD

Pawnee Stp, Village Of

Pawnee · 17 mi away

0.21 MGD

Spring Creek 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 August 14, 2026.

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

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