Rollin-Woodstock WWTP
Addison, MI · Lenawee County · Publicly Owned Treatment Works
- Average flow
- 0.61 MGD
- Design flow
- —
- NPDES permit
- MI0027669
- Effective
- Permit expires
- October 2028
- Population served
- 6,241
- CWNS 2022
Rollin-Woodstock WWTP is a publicly owned wastewater treatment works in Addison, Lenawee County, Michigan treating an average of 0.61 million gallons per day, serving about 6,241 residents. Treatment on site includes clarifiers, aerated lagoons, uncovered lagoons. It discharges under NPDES permit MI0027669 (effective), which expires in October 2028, with 1 recorded violation 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
- 1
- 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 Rollin-Woodstock WWTP.
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Hudson · 6 mi away
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Hudson · 8 mi away
0.19 MGD
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Onsted · 10 mi away
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Clayton · 10 mi away
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Pittsford · 11 mi away
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Onsted · 11 mi away
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Brooklyn · 13 mi away
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Rollin-Woodstock WWTP: 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 March 12, 2025.