Hanover, New Hampshire: water and wastewater capital improvement projects
87 line items · $64M · starting 2026–2030 · 1 plan
Hanover's published capital plans list 87 water, sewer and wastewater line items with a combined planning budget of $64M, of which 53 items worth $37M sit in the wastewater and sewer departments. The largest single item is Nitrogen Removal & Facility upgrade at $22M (2049). 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 Hanover
| # | Project | Department | Type | Budget | Years |
|---|---|---|---|---|---|
| 1 | Nitrogen Removal & Facility upgrade | Wastewater | Nutrient removal | $22M | 2049 |
| 2 | Distribution Project 2 ($455K) | Water Distribution | Water mains and distribution | $8M | 2029 |
| 3 | Distribution Project 1 ($304k) | Water Distribution | Water mains and distribution | $8M | — |
| 4 | Grasse Road Storage Tank | Water Supply | Storage tanks and reservoirs | $5M | — |
| 5 | Aeration Basins | Wastewater | Aeration and blowers | $4M | 2060 |
| 6 | Sand Hill Water Storage Tank | Water Supply | Storage tanks and reservoirs | $2M | — |
| 7 | Chlorine Contact Tanks | Wastewater | Disinfection and UV | $2M | 2056 |
| 8 | Solar Grasse Rd Phase 2 Buyout | Wastewater | Generators, power and electrical | $1M | 2030 |
| 9 | Pump Station #3 | Sewer | Pump stations | $880K | 2056 |
| 10 | Solar Array WTF Phase 1 | Water Supply | Water treatment plants | $875K | 2028 |
77 more line items in Hanover, with descriptions and contacts
Klarifi holds every Hanover 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
2026
$787K
4 items
2027
$449K
7 items
2028
$2M
9 items
2029
$9M
8 items
2030
$1M
3 items
2032 and later
$36M
51 items
Unscheduled
$15M
5 items
By department
| Department | Line items | Budget | Share |
|---|---|---|---|
| Wastewater | 49 | $34M | 54% |
| Sewer | 4 | $3M | 4% |
| Water Supply | 28 | $10M | 15% |
| Water Distribution | 6 | $17M | 26% |
Project types in Hanover's plan
Wastewater treatment plants in Hanover
1 publicly owned treatment plant in Hanover with 45 permit violations in the last three years. Each profile shows flow, permit, technology and compliance data.
| Plant | Avg flow (MGD) | NPDES | Violations (3y) |
|---|---|---|---|
| Hanover Wastewater Treatment Facility | 0.99 | NH0100099 | 45 |
Other New Hampshire cities with capital plans
Hanover capital plan questions
Sources and methodology
Budgets and years are as published in Hanover’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 2026–2031 (87 line items).
Data refreshed September 11, 2026.