New Lenox-STP #2, Village Of
New Lenox, IL · Will County · Publicly Owned Treatment Works
- Average flow
- 0.84 MGD
- Design flow
- 2.21 MGD
- NPDES permit
- IL0046264
- Administratively continued
- Permit expires
- June 2026
- Population served
- 5,443
- CWNS 2022
New Lenox-STP #2, Village Of is a publicly owned wastewater treatment works in New Lenox, Will County, Illinois treating an average of 0.84 million gallons per day against a permitted design capacity of 2.21 MGD, serving about 5,443 residents. Treatment on site includes clarifiers. It discharges under NPDES permit IL0046264 (administratively continued), which expires in June 2026, with 6 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Clarifiers
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Compliance snapshot (last 3 years)
- Total violations
- 6
- Effluent violations
- 6
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
2 verified contacts for New Lenox-STP #2, Village Of, with validated emails and direct phone numbers.
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Names, validated emails and direct phone numbers for decision-makers at New Lenox-STP #2, Village Of, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Illinois
New Lenox · 3 mi away
1.46 MGD
New Lenox · 3 mi away
0.15 MGD
Manhattan · 4 mi away
0.81 MGD
Joliet · 4 mi away
0.11 MGD
Joliet · 5 mi away
—
Mokena · 7 mi away
1.84 MGD
Crest Hill · 8 mi away
1.19 MGD
Lockport · 8 mi away
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New Lenox-STP #2, 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 September 11, 2026; facility record last updated November 28, 2025.