Itasca, Village Of - Prospect Avenue WWTP
411 North Prospect Avenue, Itasca, IL 60143 · Dupage County · Publicly Owned Treatment Works
- Average flow
- 1.65 MGD
- Design flow
- 8.2 MGD
- NPDES permit
- IL0079073
- Effective
- Permit expires
- December 2026
- Population served
- 9,805
- CWNS 2022
Itasca, Village Of - Prospect Avenue WWTP is a publicly owned wastewater treatment works in Itasca, Dupage County, Illinois treating an average of 1.65 million gallons per day against a permitted design capacity of 8.2 MGD, serving about 9,805 residents. It discharges under NPDES permit IL0079073 (effective), which expires in December 2026, with 5 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in February 2025.
Treatment technology
Treatment structures and unit processes at Itasca, Village Of - Prospect Avenue WWTP.
Treatment structure data not yet analyzed for this facility.
Compliance snapshot (last 3 years)
- Total violations
- 5
- Effluent violations
- 5
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 Itasca, Village Of - Prospect Avenue WWTP in EPA's ICIS system.
- Formal actions
- 1
- 1 since FY2020
- EPA inspections
- 0
- none on record
Latest case · Feb 2025
Village of Itasca AOC
Administrative order · CWA, NPDES Permit Violations · Final Order No Penalty
EPA's description of the case:
“AOC to address alleged violations and return facility to compliance.”
Source: EPA ECHO, civil enforcement case 05-2025-0306.
Full case history with a free Klarifi account
Every action against Itasca, Village Of - Prospect Avenue WWTP with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Key contacts
12 verified contacts for Itasca, Village Of - Prospect Avenue WWTP, with validated emails and direct phone numbers.
Unlock 12 verified contacts (9 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Itasca, Village Of - Prospect Avenue WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Illinois
Itasca · 1 mi away
—
Wood Dale · 1 mi away
1.58 MGD
Wood Dale · 2 mi away
0.27 MGD
Addison · 3 mi away
3.21 MGD
Addison · 4 mi away
1.93 MGD
Roselle · 6 mi away
0.75 MGD
Elmhurst · 7 mi away
10.25 MGD
Glen Ellyn · 9 mi away
11.79 MGD
Itasca, Village Of - Prospect Avenue WWTP: 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 October 7, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Sludge dewatering · Biological nutrient removal · all terms