Gillett Wastewater Treatment Facility
Foelker St, Gillett, WI 54124 · Oconto County · Publicly Owned Treatment Works
- Average flow
- 0.24 MGD
- Design flow
- 0.33 MGD
- NPDES permit
- WI0022063
- Expired
- Permit expires
- December 2021
- Population served
- 1,325
- CWNS 2022
Gillett Wastewater Treatment Facility is a publicly owned wastewater treatment works in Gillett, Oconto County, Wisconsin treating an average of 0.24 million gallons per day against a permitted design capacity of 0.33 MGD, serving about 1,325 residents. It discharges under NPDES permit WI0022063 (expired), which expires in December 2021, with 0 recorded violations in the last three years.
Treatment technology
Treatment structures and unit processes at Gillett Wastewater Treatment Facility.
Treatment structure data not yet analyzed for this facility.
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 Gillett Wastewater Treatment Facility.
No verified contacts on file yet
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Gillett Wastewater Treatment Facility: 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 6, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · FOG · Equalization tank · all terms