Bay City Wastewater Treatment Plant
2905 North Water, Bay City, MI 48708 · Bay County · Publicly Owned Treatment Works
- Average flow
- 6.86 MGD
- Design flow
- —
- NPDES permit
- MI0022284
- Administratively continued
- Permit expires
- October 2015
- Population served
- 46,680
- CWNS 2022
Bay City Wastewater Treatment Plant is a publicly owned wastewater treatment works in Bay City, Bay County, Michigan treating an average of 6.86 million gallons per day, serving about 46,680 residents. It discharges under NPDES permit MI0022284 (administratively continued), which expires in October 2015, with 27 recorded violations in the last three years. EPA has recorded 1 formal enforcement action naming the plant, the latest in June 1999.
Treatment technology
2 treatment structures and unit processes identified at Bay City Wastewater Treatment Plant.
Available with a free Klarifi account
See the full treatment train at Bay City Wastewater Treatment Plant: structures, unit processes and planned upgrades, with exact unit counts.
Compliance snapshot (last 3 years)
- Total violations
- 27
- Effluent violations
- 27
Based on NPDES Discharge Monitoring Reports. Full violation history, parameters and discharge data available in the Klarifi platform.
EPA enforcement history
Federal civil enforcement cases, compliance inspections and informal actions recorded for Bay City Wastewater Treatment Plant in EPA's ICIS system.
- Formal actions
- 1
- 0 since FY2020
- Penalties assessed
- $1,000
- all cases
- Compliance actions
- $100,000
- required by EPA orders
- EPA inspections
- 1
- none on record
Latest case · Jun 1999
BAY CITY, MICHIGAN
Administrative order · TSCA, Prohibited Acts · Final Order With Penalty · Penalty $1,000 · Compliance actions $100,000
Source: EPA ECHO, civil enforcement case 05-1998-0121.
Full case history with a free Klarifi account
Every action against Bay City Wastewater Treatment Plant with dates, milestones, violation types and EPA's complete case summaries, plus inspections and informal actions.
Industrial users and pretreatment
Industries that discharge process wastewater to Bay City Wastewater Treatment Plant, from the plant's pretreatment programme records.
- Industrial users
- 3
- on record
On record: General Motors LLC (Bay City); McLaren (Bay City); Mersen Usa Bn Corp, Bay City Branch (Bay City). Most users are in automotive, metal and equipment manufacturing and hospitals and public institutions.
Industrial users of Bay City Wastewater Treatment Plant →
Unlock the details behind these industrial users
Discharge flow, federal category, source documents and contacts for every industrial user of Bay City Wastewater Treatment Plant. Free with a Klarifi account.
Capital improvement projects in Bay City
Bay City's capital improvement plan lists 22 water, sewer and wastewater line items worth $24M starting 2024–2029. The largest budgeted items are shown here.
All water and sewer capital projects in Bay City →
| Project | Budget | Years |
|---|---|---|
| New Preliminary Grit Removal System | $6,000,000 | 2029–2030 |
| Rehabilitation Project Construction | $4,500,000 | 2024–2030 |
| Flushing System Rehab at the RTBs | $3,450,000 | 2027–2029 |
| Biological Process Replacement Project | $2,391,474 | 2025–2026 |
| Trickling Filters | $1,762,227 | 2024–2025 |
Full project details — scope, funding source, engineering consultant and the decision-makers behind each project — are available in Klarifi, along with similar wastewater capital projects in other cities.
Key contacts
36 verified contacts for Bay City Wastewater Treatment Plant, with validated emails and direct phone numbers.
Unlock 36 verified contacts (33 more than shown)
Names, validated emails and direct phone numbers for decision-makers at Bay City Wastewater Treatment Plant, plus the full compliance history and discharge data.
Nearby wastewater treatment plants in Michigan
Bay City · 1 mi away
5.73 MGD
Saginaw · 10 mi away
1.63 MGD
Saginaw · 10 mi away
34.99 MGD
Reese · 13 mi away
1.16 MGD
Freeland · 13 mi away
1.45 MGD
Saginaw · 16 mi away
5.22 MGD
Bridgeport · 18 mi away
1.79 MGD
Pinconning · 18 mi away
0.22 MGD
Bay City Wastewater Treatment Plant: 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 May 19, 2025.
Wastewater terms: POTW · MGD · NPDES permit · Inflow and infiltration · Ozonation · Activated sludge · all terms