Cesspool conversion on Maui

Maui at a glance

• About 11,038 cesspools, roughly 17% of Maui homes (CCWG final report, Table 1).
• Priority split: about 924 Priority 1 (8%), 3,148 Priority 2 and 6,971 Priority 3 (CCWG briefing).
• Upcountry Maui was one of DOH's original top-priority areas (DOH). In the state HCPT cesspool data, Makawao/Pukalani (96768) has about 3,550 cesspools, Kula (96790) about 2,270 and Haiku (96708) about 1,930.

Funding on Maui

• Statewide loans (Act 120, 2026): low-interest or forgivable loans for low- and moderate-income homeowners, run by the Hawaii Green Infrastructure Authority. Not yet accepting applications (DOH).
• USDA-backed rural loan: a USDA Rural Decentralized Water Systems revolving loan through a nonprofit lender, listed for "All of Maui": 1% fixed, up to 20 years, up to $15,000 per household (WAI financing page).
• No Maui County-specific grant found as of October 2026.

Check your property's priority on the Hawaii Cesspool Prioritization Tool.

New to this? Start with Cesspool 101.