Plainfield, Connecticut: water and wastewater capital improvement projects
18 line items · $5M · starting 2026–2027 · 1 plan
Plainfield's published capital plans list 18 water, sewer and wastewater line items with a combined planning budget of $5M, of which 18 items worth $5M sit in the wastewater and sewer departments. The largest single item is New Secondary Tank North Plant at $2M (2026–2027). 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 Plainfield
| # | Project | Department | Type | Budget | Years |
|---|---|---|---|---|---|
| 1 | New Secondary Tank North Plant | Wastewater | Storage tanks and reservoirs | $2M | 2026–2027 |
| 2 | Rehab gravity thickener North & Village Plant | Wastewater | Biosolids, sludge and dewatering | $2M | 2026–2030 |
| 3 | Pump Stations Upgrade | Sewer | Pump stations | $250K | 2025–2030 |
| 4 | Cutting & Clearing Easements | Wastewater | — | $160K | 2025–2030 |
| 5 | Raising Covered Manholes | Sewer | Sewer rehabilitation and I&I | $160K | 2025–2030 |
| 6 | I & I study | Sewer | Planning, studies and asset management | $100K | 2025–2026 |
| 7 | Sewer Leak Control (I/I) & Inspection | Sewer | Sewer rehabilitation and I&I | $100K | 2025–2030 |
| 8 | Sewer Line T.V. & Cleaning | Sewer | Sewer rehabilitation and I&I | $100K | 2025–2030 |
| 9 | Treatment of root instrtion in mains & laterals | Wastewater | Sewer rehabilitation and I&I | $85K | 2025–2030 |
| 10 | Sewer Main Repair & Laterals | Sewer | Sewer rehabilitation and I&I | $75K | 2025–2030 |
8 more line items in Plainfield, with descriptions and contacts
Klarifi holds every Plainfield line item with its description, the page it appears on and the source document, plus 4 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
$1M
13 items
2026
$4M
4 items
2027
$36K
1 items
By department
| Department | Line items | Budget | Share |
|---|---|---|---|
| Wastewater | 11 | $4M | 85% |
| Sewer | 7 | $795K | 15% |
Project types in Plainfield's plan
Wastewater treatment plants in Plainfield
2 publicly owned treatment plants in Plainfield 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) |
|---|---|---|---|
| Plainfield North Water Pollution Control Facility | 0.35 | CT0100447 | 23 |
| Plainfield Village Sewage Treatment Plant | 0.27 | CT0100439 | 4 |
Other Connecticut cities with capital plans
Plainfield capital plan questions
Sources and methodology
Budgets and years are as published in Plainfield’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 2025–2030 (18 line items).
Data refreshed September 11, 2026.