Calhoun Stp, Village Of
PO Box 88, Calhoun, IL 62419 · Richland County · Publicly Owned Treatment Works
- Average flow
- 0.02 MGD
- Design flow
- 0.12 MGD
- NPDES permit
- IL0074667
- Effective
- Permit expires
- June 2029
- Population served
- —
- CWNS 2022
Calhoun Stp, Village Of is a publicly owned wastewater treatment works in Calhoun, Richland County, Illinois treating an average of 0.02 million gallons per day against a permitted design capacity of 0.12 MGD. It discharges under NPDES permit IL0074667 (effective), which expires in June 2029, with 75 recorded violations in the last three years.
Treatment technology
2 treatment structures and unit processes identified at Calhoun Stp, Village Of.
Available with a free Klarifi account
See the full treatment train at Calhoun Stp, Village Of: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 75
- Effluent violations
- 19
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
1 verified contact for Calhoun 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 Calhoun Stp, Village Of, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Illinois
Parkersburg · 3 mi away
0.01 MGD
Olney · 6 mi away
1.34 MGD
Claremont · 7 mi away
0.0057 MGD
West Salem · 9 mi away
0.01 MGD
Noble · 10 mi away
0.0034 MGD
Sumner · 11 mi away
0.07 MGD
Dundas · 14 mi away
0.15 MGD
Bridgeport · 16 mi away
0.2 MGD
Calhoun 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 September 27, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Significant industrial user · WWTP · all terms