Lagoon and pond projects in US capital improvement plans
45 planned projects · $61M · 37 cities in 20 states
In short
How many lagoon projects are in US city capital plans?
Klarifi’s extraction of published capital improvement plans finds 45 lagoon projects in 37 cities across 20 states, with a combined budget of $61M. The largest is Montebello Lake Dredging in Baltimore, MD, at $9M.
Lagoon dredging and sludge removal, liner and berm repairs, aeration retrofits and conversions of lagoon systems to mechanical treatment. The list below ranks the 10 largest by budget; every city links to its full capital plan page.
The largest lagoon projects
| # | Project | City | Budget | Years |
|---|---|---|---|---|
| 1 | Montebello Lake Dredging | Baltimore, MD | $9M | 2025 |
| 2 | Townsend Lagoon 1 Upgrade | Greensboro, NC | $8M | 2025–2027 |
| 3 | Montebello Lake Dredging | Baltimore, MD | $6M | 2026 |
| 4 | Raw Water Irrigation & Park Pond Improvements | Longmont, CO | $4M | 2025–2027 |
| 5 | Covered Anaerobic Lagoon | Memphis, TN | $4M | 2026 |
| 6 | New Lagoon | Aurora, OR | $4M | 2025–2026 |
| 7 | WWTF Lagoon 1 Solids Removal | Rochester, NH | $3M | 2026–2031 |
| 8 | Lime Residual Lagoons | Wichita, KS | $2M | 2025–2029 |
| 9 | Lime Residual Removal | Mount Pleasant, MI | $2M | 2025–2029 |
| 10 | Remove 10,000 Yds | Mount Pleasant, MI | $2M | 2025–2029 |
All 45 lagoon projects, with descriptions and contacts
Every line item with its description, page reference and source document, filterable by state, budget and start year, linked to the treatment plants and decision-makers in each city, and refreshed as new plans are adopted.
Cities with the most lagoon projects
| City | Projects | Budget |
|---|---|---|
| Owosso, MI | 3 | $205K |
| Ithaca, MI | 3 | $43K |
| Baltimore, MD | 2 | $14M |
| Mount Pleasant, MI | 2 | $4M |
| Bethlehem, NY | 2 | $2M |
| Laingsburg, MI | 2 | $1M |
| Greensboro, NC | 1 | $8M |
| Longmont, CO | 1 | $4M |
| Memphis, TN | 1 | $4M |
| Aurora, OR | 1 | $4M |
| Rochester, NH | 1 | $3M |
| Wichita, KS | 1 | $2M |
States with the most lagoon projects
| State | Projects | Budget |
|---|---|---|
| Michigan | 14 | $7M |
| New York | 5 | $2M |
| Maryland | 2 | $14M |
| North Carolina | 2 | $9M |
| Colorado | 2 | $6M |
| Oregon | 2 | $5M |
| Kansas | 2 | $4M |
| New Hampshire | 2 | $3M |
| Missouri | 2 | $785K |
| Illinois | 2 | $305K |
| Tennessee | 1 | $4M |
| Virginia | 1 | $2M |
Planned spend by start year
Before 2026
$39M
19 items
2026
$19M
13 items
2027
$1M
7 items
2028
$1M
4 items
2030
$1M
1 items
2032 and later
$8K
1 items
Other project types
Questions about lagoon projects
Sources and methodology
Budgets and years are as published in each city’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.
Data refreshed October 12, 2026.
Wastewater terms: Lift station · Inflow and infiltration · Sludge dewatering · WWTP · Equalization tank · Centrate · all terms