5516 Willow Springs Lane, Freeburg, IL 62243 · St. Clair County · Publicly Owned Treatment Works
Freeburg West Stp, Village Of is a publicly owned wastewater treatment works in Freeburg, St. Clair County, Illinois treating an average of 0.33 million gallons per day against a permitted design capacity of 1 MGD, serving about 2,426 residents. It discharges under NPDES permit IL0032310 (effective), which expires in February 2029, with 54 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in February 2026.
One treatment structure or unit process identified at Freeburg West Stp, Village Of.
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See the full treatment train at Freeburg West Stp, Village Of: structures, unit processes and planned upgrades, with exact unit counts.
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Federal civil enforcement cases, compliance inspections and informal actions recorded for Freeburg West Stp, Village Of in EPA's ICIS system.
Latest case · Feb 2026
Village of Freeburg West STP AOC
Administrative order · CWA, NPDES Permit Violations · Final Order No Penalty · Compliance actions $13M
EPA's description of the case:
“AOC for alleged CWA violations”
Source: EPA ECHO, civil enforcement case 05-2022-0315.
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Every action against Freeburg West Stp, Village Of with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
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Names, validated emails and direct phone numbers for decision-makers at Freeburg West Stp, Village Of, plus the full compliance history and discharge data.
Freeburg · 2 mi away
0.14 MGD
Smithton · 3 mi away
0.37 MGD
Belleville · 6 mi away
1.08 MGD
Mascoutah · 7 mi away
1.04 MGD
Fayetteville · 8 mi away
0.04 MGD
Swansea · 8 mi away
1.81 MGD
Hecker · 9 mi away
0.0051 MGD
Millstadt · 9 mi away
0.34 MGD
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 November 7, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Tertiary treatment · Significant industrial user · all terms