Maui County Department of Environmental Management
Maui County Cesspool Upgrade Assistance is available to homeowners in Maui County, HI.
Low-interest loan program to help Maui County homeowners convert cesspools to septic systems or aerobic treatment units. State law requires all cesspools be upgraded by 2050 to protect groundwater.
Low-interest loan repaid over 10-15 years, often via property tax assessment
Official program page checked live on 2026-06-22.
Data last verified 2026-06-09. How we verify our data.
In Maui County, HI, you can combine this program with other local help to cut your cost:
A grant-savvy contractor in Maui County, HI can handle the paperwork, inspections, and timelines so your funding releases on schedule. Getting matched is free.
You will likely need a contractor to apply
Projects like this almost always need a licensed contractor, and many grants ask for a written estimate as part of your application. Lining up a contractor in Maui County early keeps your application moving.
Get matched with a contractorEach program sets its own contractor rules. Check the official program page for exact requirements.
Documents you will likely need
Requirements vary by program and locality. Confirm the exact rules on the official program page. We can help you prepare your paperwork, but you submit it yourself.
Deadline: Ongoing, cesspools must be upgraded by 2050
Ask us. It is free, and a real person answers within a business day.
Email us about this programLow-interest loan up to $20,000.
Maui County Cesspool Upgrade Assistance is open to homeowners in Maui County, HI.
Apply directly with Maui County Department of Environmental Management using the official program link on this page or call (808) 270-7831. There is no middleman and no fee. Deadline: Ongoing, cesspools must be upgraded by 2050.
Grant-approved contractors understand the documentation, inspections, and timelines, so your funding releases on schedule.
Rebates and discounts that stack on top of any grant. Most are free to use.
This is just one of many grants, rebates, and free programs available. Stack them together to maximize your savings.
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