Antioch, Illinois: water and wastewater capital improvement projects
42 line items · $3M · starting 2026–2031 · 1 plan
Antioch's published capital plans list 42 water, sewer and wastewater line items with a combined planning budget of $3M, of which 40 items worth $2M sit in the wastewater and sewer departments. The largest single item is Holbeck Crest Sanitary Sewer Replacement at $600K (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 Antioch
| # | Project | Department | Type | Budget | Years |
|---|---|---|---|---|---|
| 1 | Holbeck Crest Sanitary Sewer Replacement | Sewer | Sewer rehabilitation and I&I | $600K | 2026 |
| 2 | Truck Utility Crane | Water Supply | Vehicles and equipment | $400K | 2030 |
| 3 | New Fine Screen | Wastewater | Headworks, screening and grit | $150K | 2025 |
| 4 | Aeration Blower # 1 | Wastewater | Aeration and blowers | $100K | 2028 |
| 5 | SCADA PLC Replacement | Wastewater | SCADA, controls and instrumentation | $100K | 2027 |
| 6 | UV Lamps Replacement-Bank 1 | Wastewater | Disinfection and UV | $100K | 2025–2035 |
| 7 | Clarifier Painting-WEST | Wastewater | Clarifiers and settling | $75K | 2026 |
| 8 | Clarifier West Rebuild | Wastewater | Clarifiers and settling | $75K | 2026 |
| 9 | SCADA Server Hardware Replacement | Wastewater | SCADA, controls and instrumentation | $75K | 2029–2034 |
| 10 | UV Lamps Replacement-Bank 2 | Wastewater | Disinfection and UV | $70K | 2029–2034 |
32 more line items in Antioch, with descriptions and contacts
Klarifi holds every Antioch 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
$432K
7 items
2026
$850K
6 items
2027
$132K
2 items
2028
$202K
4 items
2029
$262K
6 items
2030
$455K
3 items
2031
$15K
1 items
2032 and later
$400K
13 items
By department
| Department | Line items | Budget | Share |
|---|---|---|---|
| Wastewater | 37 | $2M | 59% |
| Sewer | 3 | $690K | 25% |
| Water Supply | 2 | $435K | 16% |
Project types in Antioch's plan
Wastewater treatment plants in Antioch
No publicly owned treatment plant is recorded under Antioch in the facility directory; the city may be served by a regional plant listed under another municipality. Browse all plants in Illinois.
Other Illinois cities with capital plans
Antioch capital plan questions
Sources and methodology
Budgets and years are as published in Antioch’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 (42 line items).
Data refreshed September 11, 2026.