Granton Wastewater Treatment Facility
Granton, WI · Clark County · Publicly Owned Treatment Works
- Average flow
- —
- Design flow
- 0.06 MGD
- NPDES permit
- WI0020885
- Expired
- Permit expires
- March 2024
- Population served
- 351
- CWNS 2022
Granton Wastewater Treatment Facility is a publicly owned wastewater treatment works in Granton, Clark County, Wisconsin, serving about 351 residents. Treatment on site includes aerated lagoons, uncovered lagoons. It discharges under NPDES permit WI0020885 (expired), which expires in March 2024, with 0 recorded violations in the last three years.
Treatment technology
Treatment structures identified at this facility. Exact unit counts are available in Klarifi.
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 Granton Wastewater Treatment Facility.
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Nearby wastewater treatment plants in Wisconsin
Neillsville · 7 mi away
—
Spencer · 14 mi away
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Marshfield · 17 mi away
2.42 MGD
Merrillan, · 18 mi away
—
Pittsville · 20 mi away
0.08 MGD
Unity · 20 mi away
0.04 MGD
Merrillan · 21 mi away
0.07 MGD
Arpin · 22 mi away
0.03 MGD
Granton 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 September 11, 2026; facility record last updated November 20, 2025.