Village Of Mokena Stw
11400 191st Street, Mokena, IL 60448 · Will County · Publicly Owned Treatment Works
- Average flow
- 2.56 MGD
- Design flow
- —
- NPDES permit
- ILL024201
- Effective
- Permit expires
- December 2030
- Population served
- 20,050
- CWNS 2022
Village Of Mokena Stw is a publicly owned wastewater treatment plant in Mokena, Will County, Illinois treating an average of 2.56 million gallons per day, serving about 20,050 residents. It discharges under NPDES permit ILL024201 (effective), which expires in December 2030, with 2 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Village Of Mokena Stw.
Available with a free Klarifi account
See the full treatment train at Village Of Mokena Stw: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 2
- Effluent violations
- 2
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
17 verified contacts for Village Of Mokena Stw, with validated emails and direct phone numbers.
Unlock 17 verified contacts (14 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Village Of Mokena Stw, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Illinois
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New Lenox · 4 mi away
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New Lenox · 4 mi away
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New Lenox · 7 mi away
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Joliet · 8 mi away
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Lockport · 9 mi away
—
Manhattan · 10 mi away
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Crest Hill · 10 mi away
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Village Of Mokena Stw: 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 May 17, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Significant industrial user · WWTP · all terms