Olathe, Kansas: water and wastewater capital improvement projects
31 line items · $262M · starting 2026–2029 · 1 plan
Olathe's published capital plans list 31 water, sewer and wastewater line items with a combined planning budget of $262M, of which 18 items worth $197M sit in the wastewater and sewer departments. The largest single item is West Cedar Creek Sewer Interceptor at $39M (2025–2026). 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 Olathe
| # | Project | Department | Type | Budget | Years |
|---|---|---|---|---|---|
| 1 | West Cedar Creek Sewer Interceptor | Wastewater | Force mains and interceptors | $39M | 2025–2026 |
| 2 | Cedar Creek WWTP Expansion Phase II (BNR) | Wastewater | Nutrient removal | $35M | 2025–2027 |
| 3 | Cedar Creek WWTP Solids Handling Expansion | Wastewater | Biosolids, sludge and dewatering | $35M | 2025–2027 |
| 4 | Waterline Rehabilitation | Water Distribution | Water mains and distribution | $31M | 2025–2029 |
| 5 | Neighborhood Sanitary Sewer Improvements | Wastewater | Sewer rehabilitation and I&I | $17M | 2025–2029 |
| 6 | Indian Creek Trunkmain Rehabilitation | Wastewater | Sewer rehabilitation and I&I | $15M | 2025–2027 |
| 7 | East Cedar Creek Trunkmain Rehabilitation | Wastewater | Sewer rehabilitation and I&I | $13M | 2028–2029 |
| 8 | Sanitary Sewer Rehabilitation I&I | Wastewater | Sewer rehabilitation and I&I | $11M | 2025–2029 |
| 9 | Indian Creek Trail Basin G22 Sanitary Sewer Impro | Wastewater | Sewer rehabilitation and I&I | $8M | 2028–2029 |
| 10 | WTP2: Electrical Modification Improvements | Water Supply | Generators, power and electrical | $7M | 2025 |
21 more line items in Olathe, with descriptions and contacts
Klarifi holds every Olathe line item with its description, the page it appears on and the source document. Track new plans as they are adopted and compare with similar projects in other cities.
Planned spend by start year
Before 2026
$210M
18 items
2026
$805K
1 items
2027
$7M
2 items
2028
$38M
7 items
2029
$6M
3 items
By department
| Department | Line items | Budget | Share |
|---|---|---|---|
| Wastewater | 18 | $197M | 75% |
| Water Supply | 5 | $16M | 6% |
| Water Distribution | 8 | $49M | 19% |
Project types in Olathe's plan
Wastewater treatment plants in Olathe
2 publicly owned treatment plants in Olathe with 5 permit violations in the last three years. Each profile shows flow, permit, technology and compliance data.
| Plant | Avg flow (MGD) | NPDES | Violations (3y) |
|---|---|---|---|
| Olathe (cedar Creek) Wastewater Plant | 3.74 | KS0081299 | 0 |
| Olathe Harold (main Plant) | 1.3 | KS0045802 | 5 |
Other Kansas cities with capital plans
Olathe capital plan questions
Sources and methodology
Budgets and years are as published in Olathe’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 (31 line items).
Data refreshed September 11, 2026.