Waukesha, Wisconsin: water and wastewater capital improvement projects
36 line items · $61M · starting 2026–2029 · 1 plan
Waukesha's published capital plans list 36 water, sewer and wastewater line items with a combined planning budget of $61M, of which 36 items worth $61M sit in the wastewater and sewer departments. The largest single item is Sanitary Sewer Rehabilitation at $19M (2025–2029). 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 Waukesha
| # | Project | Department | Type | Budget | Years |
|---|---|---|---|---|---|
| 1 | Sanitary Sewer Rehabilitation | Sewer | Sewer rehabilitation and I&I | $19M | 2025–2029 |
| 2 | Facility Plan 11-15 Yr Upgrades | Wastewater | Biosolids, sludge and dewatering | $15M | 2025–2027 |
| 3 | Bio-Gas Purification for Reuse System | Wastewater | Water reuse and reclaimed water | $5M | 2029 |
| 4 | Sanitary Pump Station & Force Main Rehab. | Sewer | Pump stations | $5M | 2025–2029 |
| 5 | Bldgs. 110 & 140 Emergency Backup Generator Repl. | Wastewater | Generators, power and electrical | $5M | 2025 |
| 6 | Facility Plan 16-20 Yr Upgrades | Wastewater | Biosolids, sludge and dewatering | $5M | 2027–2028 |
| 7 | Sanitary Manhole Rehabilitation | Sewer | Sewer rehabilitation and I&I | $2M | 2025–2029 |
| 8 | Sanitary Interceptor Projects | Sewer | Force mains and interceptors | $1M | 2025 |
| 9 | RAS Pipe Replacement | Wastewater | Water mains and distribution | $850K | 2029 |
| 10 | Lift Station Radio Communication Replacem. | Sewer | Lift stations | $680K | 2027 |
26 more line items in Waukesha, with descriptions and contacts
Klarifi holds every Waukesha line item with its description, the page it appears on and the source document, plus 8 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
$47M
16 items
2026
$739K
6 items
2027
$6M
5 items
2028
$745K
3 items
2029
$6M
6 items
By department
| Department | Line items | Budget | Share |
|---|---|---|---|
| Wastewater | 28 | $33M | 54% |
| Sewer | 8 | $28M | 46% |
Project types in Waukesha's plan
Wastewater treatment plants in Waukesha
1 publicly owned treatment plant in Waukesha with 3 permit violations in the last three years. Each profile shows flow, permit, technology and compliance data.
| Plant | Avg flow (MGD) | NPDES | Violations (3y) |
|---|---|---|---|
| Waukesha Waste Water Treatment Plant | 3.15 | WI0029971 | 3 |
Other Wisconsin cities with capital plans
Waukesha capital plan questions
Sources and methodology
Budgets and years are as published in Waukesha’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: CIP 2025–2029 (36 line items).
Data refreshed September 11, 2026.