South Portland, Maine: water and wastewater capital improvement projects
25 line items · $88M · starting 2026–2030 · 1 plan
South Portland's published capital plans list 25 water, sewer and wastewater line items with a combined planning budget of $88M, of which 17 items worth $19M sit in the wastewater and sewer departments. The largest single item is Pearl Street Pump Station Upgrades & Construction at $49M (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 South Portland
| # | Project | Department | Type | Budget | Years |
|---|---|---|---|---|---|
| 1 | Pearl Street Pump Station Upgrades & Construction | Water Distribution | Pump stations | $49M | 2026 |
| 2 | Increase Conveyance Capacity from CSO #006 to Pearl Street Pump Station | Water Distribution | Pump stations | $16M | 2028–2030 |
| 3 | Dewatering System Upgrades | Wastewater | Biosolids, sludge and dewatering | $15M | 2026–2029 |
| 4 | Sewer Lining Program | Sewer | Sewer rehabilitation and I&I | $2M | 2026–2031 |
| 5 | Treatment Plant Headworks Upgrades | Water Supply | Headworks, screening and grit | $1M | 2029–2031 |
| 6 | Main St. Pump Station Generator Replacement Evaluation and Design | Water Distribution | Pump stations | $789K | 2026–2028 |
| 7 | West Hight Pump Station - Force Main Replacement | Water Distribution | Pump stations | $600K | 2027 |
| 8 | Willard Beach Pump Station Electrical Upgrade | Sewer | Pump stations | $600K | 2026–2027 |
| 9 | West High Pump Station Pumps and VFD Design | Sewer | Pump stations | $575K | 2027–2028 |
| 10 | Disinfection Upgrade for Winterization | Wastewater | Disinfection and UV | $550K | 2028–2029 |
15 more line items in South Portland, with descriptions and contacts
Klarifi holds every South Portland 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
$68M
13 items
2027
$2M
6 items
2028
$17M
4 items
2029
$1M
1 items
2030
$230K
1 items
By department
| Department | Line items | Budget | Share |
|---|---|---|---|
| Wastewater | 6 | $16M | 18% |
| Sewer | 11 | $4M | 4% |
| Water Supply | 2 | $1M | 1% |
| Water Distribution | 6 | $67M | 77% |
Project types in South Portland's plan
Wastewater treatment plants in South Portland
No publicly owned treatment plant is recorded under South Portland in the facility directory; the city may be served by a regional plant listed under another municipality. Browse all plants in Maine.
Other Maine cities with capital plans
South Portland capital plan questions
Sources and methodology
Budgets and years are as published in South Portland’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 2026–2032 (25 line items).
Data refreshed September 11, 2026.