Forreston Stw, Village Of
505 East Green Street, Forreston, IL 61030 · Ogle County · Publicly Owned Treatment Works
- Average flow
- 0.15 MGD
- Design flow
- 0.75 MGD
- NPDES permit
- IL0022721
- Effective
- Permit expires
- September 2031
- Population served
- 1,440
- CWNS 2022
Forreston Stw, Village Of is a publicly owned wastewater treatment plant in Forreston, Ogle County, Illinois treating an average of 0.15 million gallons per day against a permitted design capacity of 0.75 MGD, serving about 1,440 residents. It discharges under NPDES permit IL0022721 (effective), which expires in September 2031, with 0 recorded violations in the last three years.
Treatment technology
3 treatment structures and unit processes identified at Forreston Stw, Village Of.
Available with a free Klarifi account
See the full treatment train at Forreston Stw, Village Of: structures, unit processes and planned upgrades, with exact unit counts.
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.
Key contacts
Decision-makers at Forreston Stw, Village Of.
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Forreston Stw, 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 March 15, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Centrate · Ozonation · all terms