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Hawaii Statewide Rule

Hawaii State Water Code and Conservation

Heavy RestrictionsApplies statewide across Hawaii (2026)

Key Facts

Statute
HRS Chapter 174C
Authority
CWRM
Max Civil Penalty
$5,000/day
Permit Trigger
Designated management areas
Last verified: September 5, 2026Source: Hawaii State Legislature

Summary

Hawaii's State Water Code establishes uniform water use regulation through the Commission on Water Resource Management. Designated water management areas trigger mandatory permits and conservation requirements that apply regardless of county boundaries.

[§174C-48] Permits required. (a) No person shall make any withdrawal, diversion, impoundment, or consumptive use of water in any designated water management area without first obtaining a permit from the commission.

Source: Hawaii State LegislatureView official code

Full Breakdown

HRS Chapter 174C, the State Water Code, vests authority over Hawaii's water resources in the Commission on Water Resource Management (CWRM). In designated water management areas, all non-domestic water use requires a permit. The Commission may impose mandatory conservation measures, restrictions on outdoor irrigation, and reduced allocations during droughts or shortages. Counties operate water utilities but must comply with state allocations and conservation orders. The Code preempts inconsistent county actions on groundwater and surface water management. Violators face cease-and-desist orders, fines, and permit revocation.

Violations & Penalties

Civil penalties up to $5,000 per violation per day, criminal misdemeanor charges for willful violations, plus mandatory restoration and permit revocation.

Frequently Asked Questions

Do I need a permit to use well water in Hawaii?
If your well is located within a designated water management area, yes. Non-domestic uses require a CWRM permit. Domestic single-family use is generally exempt from permitting.
Can my county set stricter outdoor watering rules?
Counties may impose additional conservation rules through their water boards, but they cannot conflict with CWRM allocations or weaken state-imposed drought restrictions.

Sources

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