Clay City, Village Of
1952 Dietrich Blacktop, Clay City, IL 62824 · Clay County · Publicly Owned Treatment Works
- Average flow
- 0.19 MGD
- Design flow
- 0.6 MGD
- NPDES permit
- IL0020974
- Effective
- Permit expires
- September 2029
- Population served
- 1,052
- CWNS 2022
Clay City, Village Of is a publicly owned wastewater treatment plant in Clay City, Clay County, Illinois treating an average of 0.19 million gallons per day against a permitted design capacity of 0.6 MGD, serving about 1,052 residents. It discharges under NPDES permit IL0020974 (effective), which expires in September 2029, with 51 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in June 2025.
Treatment technology
One treatment structure or unit process identified at Clay City, Village Of.
Available with a free Klarifi account
See the full treatment train at Clay City, Village Of: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 51
- Effluent violations
- 49
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
EPA enforcement history
Federal civil enforcement cases, compliance inspections and informal actions recorded for Clay City, Village Of in EPA's ICIS system.
- Formal actions
- 1
- 1 since FY2020
- Compliance actions
- $20,000
- required by EPA orders
- EPA inspections
- 0
- none on record
Latest case · Jun 2025
Clay City WWTF
Administrative order · CWA, NPDES Permit Violations · Final Order Issued · Compliance actions $20,000
EPA's description of the case:
“AOC sets out measures to correct the alleged violations and bring the facility into compliance with the CWA”
Source: EPA ECHO, civil enforcement case 05-2025-0320.
Full case history with a free Klarifi account
Every action against Clay City, Village Of with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
1 verified contact for Clay City, Village Of, with validated emails and direct phone numbers.
Unlock 1 verified contact
Names, validated emails and direct phone numbers for decision-makers at Clay City, Village Of, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Illinois
Noble · 7 mi away
0.0034 MGD
Flora · 8 mi away
0.73 MGD
Louisville · 9 mi away
0.07 MGD
Olney · 14 mi away
1.34 MGD
Xenia · 16 mi away
0.03 MGD
Calhoun · 17 mi away
0.02 MGD
Parkersburg · 17 mi away
0.01 MGD
Dundas · 18 mi away
0.15 MGD
Clay City, 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 November 6, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Oxidation ditch · Anaerobic digester · all terms