Exeter, New Hampshire: water and wastewater capital improvement projects
9 line items · $14M · starting 2026–2028 · 1 plan
Exeter's published capital plans list 9 water, sewer and wastewater line items with a combined planning budget of $14M, of which 8 items worth $8M sit in the wastewater and sewer departments. The largest single item is Groundwater Source Development at $7M (2025). 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 Exeter
| # | Project | Department | Type | Budget | Years |
|---|---|---|---|---|---|
| 1 | Groundwater Source Development | Water Supply | Wells and groundwater | $7M | 2025 |
| 2 | High Street/Cross Country Sewer Rehab | Sewer | Sewer rehabilitation and I&I | $3M | 2026 |
| 3 | WWTF Upgrades Phase I | Wastewater | Wastewater treatment plant upgrades | $3M | 2027–2028 |
| 4 | Clemson Lagoon | Wastewater | Lagoons and ponds | $500K | 2025 |
| 5 | Court Street Pump Station | Sewer | Pump stations | $500K | 2027 |
| 6 | WWTF Effluent Flume | Sewer | Wastewater treatment plant upgrades | $245K | 2025 |
| 7 | Intersection Improvements - Front Street | Sewer | Sewer rehabilitation and I&I | $150K | 2025 |
| 8 | Portsmouth Ave Design | Sewer | Sewer rehabilitation and I&I | $94K | 2028–2029 |
| 9 | #51 Jeep - Replacement | Wastewater | Wastewater treatment plant upgrades | $32K | 2026 |
Descriptions, page references and contacts for Exeter
Klarifi holds every Exeter line item with its description, the page it appears on and the source document, plus 18 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
$8M
4 items
2026
$3M
2 items
2027
$3M
2 items
2028
$94K
1 items
By department
| Department | Line items | Budget | Share |
|---|---|---|---|
| Wastewater | 3 | $3M | 23% |
| Sewer | 5 | $4M | 30% |
| Water Supply | 1 | $7M | 47% |
Project types in Exeter's plan
Wastewater treatment plants in Exeter
1 publicly owned treatment plant in Exeter with 18 permit violations in the last three years. Each profile shows flow, permit, technology and compliance data.
| Plant | Avg flow (MGD) | NPDES | Violations (3y) |
|---|---|---|---|
| Exeter Wastewater Treatment Facility | 1.1 | NHG58A004 | 18 |
Other New Hampshire cities with capital plans
Exeter capital plan questions
Sources and methodology
Budgets and years are as published in Exeter’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 (9 line items).
Data refreshed September 11, 2026.