Bolthole Index county-legal census · checked 2026-10-07
Septic permitting in Hawaii is state-run, administered by state agencies across all 5 counties.Every entry below names the approving authority for that county, cited to the authority’s own page.
Septic rules change and some cities run their own programs — treat this as a verified starting point, not legal advice. All states → Hawaii water rights & wells → Full Hawaii profile →
5 counties · state agency · permit status scouted for 5
Hawaii State Department of Health, Wastewater Branch
Hawaii DOH Wastewater Branch - Individual Wastewater Systems ↗Hawaii State Department of Health - Wastewater Branch
Hawaii DOH Wastewater Branch - Individual Wastewater Systems ↗Hawaii Department of Health (Wastewater Branch; DOH has jurisdiction and control of Kalawao County)
Hawaii DOH - Kalaupapa Important Information ↗Hawaii State Department of Health, Wastewater Branch (Kauai District Health Office)
Kauai District Health Office - Wastewater FAQs ↗Hawaii State Department of Health, Wastewater Branch
Hawaii DOH e-Permitting - Wastewater Branch Applications ↗Every county here has a full profile — its index score, water, land prices, and the rest of its building rules. See the Hawaii state page for all counties ranked, or the national septic guide.
Off-grid gear
Before the Hawaii septic office sees a parcel, you can test it yourself. What we'd bring:
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General guidance, not legal advice. Off-grid, building, and land-use rules are often set at the county level and change often. Verify with your county and state before acting. Data reviewed 2026-06-26.
