Arpin Wastewater Treatment Facility
Cth N- Mill Road, Arpin, WI 54410 · Wood County · Publicly Owned Treatment Works
- Average flow
- 0.04 MGD
- Design flow
- 0.06 MGD
- NPDES permit
- WI0031267
- Expired
- Permit expires
- December 2023
- Population served
- 346
- CWNS 2022
Arpin Wastewater Treatment Facility is a publicly owned wastewater treatment works in Arpin, Wood County, Wisconsin treating an average of 0.04 million gallons per day against a permitted design capacity of 0.06 MGD, serving about 346 residents. It discharges under NPDES permit WI0031267 (expired), which expires in December 2023, with 41 recorded violations in the last three years.
Treatment technology
One treatment structure or unit process identified at Arpin Wastewater Treatment Facility.
Available with a free Klarifi account
See the full treatment train at Arpin Wastewater Treatment Facility: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 41
- Effluent violations
- 1
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Arpin Wastewater Treatment Facility.
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Nearby wastewater treatment plants in Wisconsin
Vesper · 5 mi away
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Milladore · 6 mi away
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Auburndale · 6 mi away
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Marshfield · 8 mi away
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Milladore · 9 mi away
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Pittsville · 9 mi away
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Stratford · 13 mi away
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Wisconsin Rapids · 15 mi away
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Arpin 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 September 16, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · WWTP · Biosolids · all terms