Perrinton Wwsl
At Sunset Dr In Section 31 Of, Perrinton, MI 48871 · Gratiot County · Publicly Owned Treatment Works
- Average flow
- 1.92 MGD
- Design flow
- —
- NPDES permit
- MIG580226
- Administratively continued
- Permit expires
- April 2024
- Population served
- 2,398
- CWNS 2022
Perrinton Wwsl is a publicly owned wastewater treatment plant in Perrinton, Gratiot County, Michigan treating an average of 1.92 million gallons per day, serving about 2,398 residents. It discharges under NPDES permit MIG580226 (administratively continued), which expires in April 2024, with 8 recorded violations in the last three years.
Treatment technology
2 treatment structures and unit processes identified at Perrinton Wwsl.
Available with a free Klarifi account
See the full treatment train at Perrinton Wwsl: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 8
- Effluent violations
- 6
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Key contacts
Decision-makers at Perrinton Wwsl.
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Ithaca · 13 mi away
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Crystal · 13 mi away
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Muir · 15 mi away
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Elsie · 16 mi away
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Perrinton Wwsl: 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 19, 2026; facility record last updated March 11, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Sludge dewatering · Biological nutrient removal · all terms