Plainfield North Stp, Village Of
Plainfield, IL · Will County · Publicly Owned Treatment Works
- Average flow
- 4.34 MGD
- Design flow
- —
- NPDES permit
- ILL074373
- Effective
- Permit expires
- December 2030
- Population served
- 44,542
- CWNS 2022
Plainfield North Stp, Village Of is a publicly owned wastewater treatment works in Plainfield, Will County, Illinois treating an average of 4.34 million gallons per day, serving about 44,542 residents. Treatment on site includes biogas balloons. It discharges under NPDES permit ILL074373 (effective), which expires in December 2030, with 0 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
Biogas balloons
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Compliance snapshot (last 3 years)
- Total violations
- 0
- Effluent violations
- 0
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Capital improvement projects in Plainfield
Plainfield's capital improvement plan lists 12 water, sewer and wastewater line items worth $24M starting 2025–2026. The largest budgeted items are shown here.
All water and sewer capital projects in Plainfield →
| Project | Budget | Years |
|---|---|---|
| Old Town Reconstruction | $9,700,000 | 2025–2026 |
| Old Town South | $5,424,000 | 2026–2026 |
| Liftstation Improvements | $2,750,000 | 2025–2026 |
| Lockport St. Sanitary Sewer Ext. | $2,700,000 | 2026–2026 |
| Well House Pump Rebuild | $900,000 | 2025–2026 |
Full project details — scope, funding source, engineering consultant and the decision-makers behind each project — are available in Klarifi, along with similar wastewater capital projects in other cities.
Key contacts
19 verified contacts for Plainfield North Stp, Village Of, with validated emails and direct phone numbers.
Unlock 19 verified contacts (16 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Plainfield North Stp, Village Of, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Illinois
Bolingbrook · 4 mi away
2.52 MGD
Crest Hill · 5 mi away
0.47 MGD
Naperville · 6 mi away
17.26 MGD
Romeoville · 7 mi away
4.81 MGD
Crest Hill · 7 mi away
1.19 MGD
Lockport · 8 mi away
—
Joliet · 10 mi away
—
Bolingbrook · 10 mi away
1.03 MGD
Plainfield North 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 September 11, 2026; facility record last updated April 23, 2025.