Thomson Stp, Village Of
West Ideal Road & Sandridge Rd, Thomson, IL 61285 · Carroll County · Publicly Owned Treatment Works
- Average flow
- 0.21 MGD
- Design flow
- 2.64 MGD
- NPDES permit
- IL0073890
- Effective
- Permit expires
- March 2028
- Population served
- —
- CWNS 2022
Thomson Stp, Village Of is a publicly owned wastewater treatment works in Thomson, Carroll County, Illinois treating an average of 0.21 million gallons per day against a permitted design capacity of 2.64 MGD. It discharges under NPDES permit IL0073890 (effective), which expires in March 2028, with 18 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Thomson Stp, Village Of.
Available with a free Klarifi account
See the full treatment train at Thomson Stp, Village Of: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 18
- Effluent violations
- 18
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Thomson Stp, Village Of, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Thomson Stp, Village Of, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Illinois
Fulton · 8 mi away
0.37 MGD
Mt. Carroll · 11 mi away
0.14 MGD
Chadwick · 12 mi away
0.08 MGD
Albany · 13 mi away
0.05 MGD
Lanark · 17 mi away
0.35 MGD
Milledgeville · 18 mi away
0.15 MGD
Savanna · 19 mi away
0.02 MGD
Hanover · 21 mi away
0.08 MGD
Thomson Stp, Village Of: 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 5, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Activated sludge · Oxidation ditch · all terms