Bay City, Michigan: water and wastewater capital improvement projects
22 line items · $24M · starting 2026–2029 · 1 plan
Bay City's published capital plans list 22 water, sewer and wastewater line items with a combined planning budget of $24M, of which 13 items worth $22M sit in the wastewater and sewer departments. The largest single item is New Preliminary Grit Removal System at $6M (2029–2030). The ten largest items are listed below; the full list with descriptions and page references is in Klarifi.
A capital improvement plan (CIP) is a city’s multi-year budget for building and replacing infrastructure. The water, sewer and wastewater sections list each project with its budget and the years it is funded, which makes them the earliest public signal that a plant, pump station or pipe network is about to be upgraded, usually two to four years before a contract is awarded.
The largest water and sewer projects in Bay City
| # | Project | Department | Type | Budget | Years |
|---|---|---|---|---|---|
| 1 | New Preliminary Grit Removal System | Wastewater | Headworks, screening and grit | $6M | 2029–2030 |
| 2 | Rehabilitation Project Construction | Sewer | — | $5M | 2024–2030 |
| 3 | Flushing System Rehab at the RTBs | Wastewater | — | $3M | 2027–2029 |
| 4 | Biological Process Replacement Project | Wastewater | — | $2M | 2025–2026 |
| 5 | Trickling Filters | Wastewater | Membranes and filtration | $2M | 2024–2025 |
| 6 | Sewer Rehabilitation Design | Sewer | Sewer rehabilitation and I&I | $2M | 2024–2030 |
| 7 | Rehab of Primary Clarifiers | Wastewater | Clarifiers and settling | $1M | 2026–2027 |
| 8 | Water Meter Services | Water Supply | Meters and AMI | $814K | 2024–2030 |
| 9 | Carbon Tank Vessel (s) Rehab/Replacement | Wastewater | Storage tanks and reservoirs | $500K | 2027–2028 |
| 10 | Lead Service Line Replacements | Water Supply | Lead service line replacement | $400K | 2026–2030 |
12 more line items in Bay City, with descriptions and contacts
Klarifi holds every Bay City line item with its description, the page it appears on and the source document, plus 45 verified contacts at the city’s treatment plants. Track new plans as they are adopted and compare with similar projects in other cities.
Planned spend by start year
Before 2026
$12M
14 items
2026
$2M
4 items
2027
$4M
2 items
2028
$100K
1 items
2029
$6M
1 items
By department
| Department | Line items | Budget | Share |
|---|---|---|---|
| Wastewater | 11 | $16M | 65% |
| Sewer | 2 | $6M | 25% |
| Water Supply | 9 | $2M | 10% |
Project types in Bay City's plan
Wastewater treatment plants in Bay City
2 publicly owned treatment plants in Bay City with 27 permit violations in the last three years. Each profile shows flow, permit, technology and compliance data.
| Plant | Avg flow (MGD) | NPDES | Violations (3y) |
|---|---|---|---|
| Bay City Wastewater Treatment Plant | 6.6 | MI0022284 | 25 |
| West Bay County Department Of Water/sewer | 4 | MI0042439 | 2 |
Other Michigan cities with capital plans
Bay City capital plan questions
Sources and methodology
Budgets and years are as published in Bay City’s capital improvement plan or adopted budget. Klarifi extracts the water, sewer and wastewater line items from the published document, keeps the page reference for each one, and assigns a project type from the title and description with a keyword classifier. Figures are planning budgets, not awarded contracts, and can change when a plan is re-adopted.
Documents: Adopted Budget 2024–2025 (22 line items).
Data refreshed September 11, 2026.