Sandusky WWTP
103 South Campbell Street, Sandusky, MI 48471 · Sanilac County · Publicly Owned Treatment Works
- Average flow
- 0.69 MGD
- Design flow
- —
- NPDES permit
- MI0020222
- Effective
- Permit expires
- October 2028
- Population served
- —
- CWNS 2022
Sandusky WWTP is a publicly owned wastewater treatment works in Sandusky, Sanilac County, Michigan treating an average of 0.69 million gallons per day. It discharges under NPDES permit MI0020222 (effective), which expires in October 2028, with 56 recorded violations in the last three years.
Treatment technology
2 treatment structures and unit processes identified at Sandusky WWTP.
Available with a free Klarifi account
See the full treatment train at Sandusky WWTP: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 56
- Effluent violations
- 52
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
Industrial users and pretreatment
Industries that discharge process wastewater to Sandusky WWTP, from the plant's pretreatment programme records.
- Industrial users
- 3
- on record
- Sampled for PFAS
- 2
- 2023–2024
- Above 12 ng/L PFOS
- 2
- highest 990 ng/L
The highest PFOS samples came from Vibracoustics (Farmington Hills), 990 ng/L; Detroit Central Hauling (WM) (Southfield), 340 ng/L; Numatics Inc (Sandusky). Most users are in automotive, metal and equipment manufacturing and chemicals, plastics and petroleum.
Industrial users of Sandusky WWTP →PFAS sources at all Michigan plants →
Unlock the details behind these industrial users
Discharge flow, federal category, full PFAS sampling history, source documents and contacts for every industrial user of Sandusky WWTP. Free with a Klarifi account.
Key contacts
3 verified contacts for Sandusky WWTP, with validated emails and direct phone numbers.
Unlock 3 verified contacts
Names, validated emails and direct phone numbers for decision-makers at Sandusky WWTP, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Michigan
Carsonville · 7 mi away
0.78 MGD
Deckerville · 8 mi away
—
Snover · 8 mi away
0.81 MGD
Peck · 11 mi away
0.87 MGD
Port Sanilac · 13 mi away
1 MGD
Croswell · 15 mi away
0.46 MGD
Lexington · 17 mi away
1.18 MGD
Minden City · 17 mi away
0.55 MGD
Sandusky 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 October 26, 2026; facility record last updated August 18, 2026.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Ozonation · Activated sludge · all terms