Clean Water State Revolving Fund (CWSRF)
Low-interest loans for water pollution control projects; up to 30 years, below-market rates. Funds up to 80% of project costs; principal forgiveness possible.
Hawaiʻi DOH Wastewater Branch / EPA
County and state agencies (NOT individual homeowners directly)
No income requirement
Hawaiʻi, Kauaʻi, Lānaʻi, Maui, Molokaʻi, Oʻahu / Honolulu
June 16, 2026
This tool is a guide only. The administering agency makes the final eligibility determination.