Santa Rosa, California: water and wastewater capital improvement projects
14 line items · $39M · starting 2028 · 1 plan
Santa Rosa's published capital plans list 14 water, sewer and wastewater line items with a combined planning budget of $39M, of which 6 items worth $9M sit in the wastewater and sewer departments. The largest single item is CIP Project Contingency at $9M (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 Santa Rosa
| # | Project | Department | Type | Budget | Years |
|---|---|---|---|---|---|
| 1 | CIP Project Contingency | Water Supply | Sewer rehabilitation and I&I | $9M | 2025–2029 |
| 2 | Llano Trunk Rehabilitation Phase 1 | Water Distribution | Headworks, screening and grit | $7M | 2025–2026 |
| 3 | Calistoga Rd Reconstruction- Montecito Blvd to Highway 12 | Water Distribution | Water mains and distribution | $6M | 2025 |
| 4 | McMinn Ave and Hughes Ave Sewer, Water, and Storm Drain Improvements | Sewer | Sewer rehabilitation and I&I | $4M | 2025–2029 |
| 5 | Farmers Lane Water Treatment Plant Rehabilitation | Water Distribution | Wastewater treatment plant upgrades | $4M | 2025–2026 |
| 6 | Rock Creek and Matanzas Water and Sewer Main Replacement | Sewer | Sewer rehabilitation and I&I | $2M | 2025 |
| 7 | Pre Design, Planning, Budget, GIS Support | Water Supply | Planning, studies and asset management | $2M | 2025–2029 |
| 8 | 2024 Water System VFD Replacements - Various Locations | Water Supply | Generators, power and electrical | $2M | 2025–2026 |
| 9 | Water Supply and Wastewater Planning | Wastewater | Planning, studies and asset management | $1M | 2025–2029 |
| 10 | Master Plans | Wastewater | Planning, studies and asset management | $500K | 2025–2029 |
4 more line items in Santa Rosa, with descriptions and contacts
Klarifi holds every Santa Rosa line item with its description, the page it appears on and the source document, plus 2 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
$39M
13 items
2028
$450K
1 items
By department
| Department | Line items | Budget | Share |
|---|---|---|---|
| Wastewater | 2 | $2M | 5% |
| Sewer | 4 | $7M | 18% |
| Water Supply | 5 | $14M | 35% |
| Water Distribution | 3 | $17M | 43% |
Project types in Santa Rosa's plan
Wastewater treatment plants in Santa Rosa
1 publicly owned treatment plant in Santa Rosa with 36 permit violations in the last three years. Each profile shows flow, permit, technology and compliance data.
| Plant | Avg flow (MGD) | NPDES | Violations (3y) |
|---|---|---|---|
| Santa Rosa Water - Laguna Treatment Plant | — | CA0022764 | 36 |
Other California cities with capital plans
Santa Rosa capital plan questions
Sources and methodology
Budgets and years are as published in Santa Rosa’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 2024–2025 (14 line items).
Data refreshed September 11, 2026.