Skip to main content
CityRuleLookup
🌿 Landscaping Rules/Water Restrictions

East Honolulu vs Mililani Mauka

How do water restrictions rules compare between East Honolulu, HI and Mililani Mauka, HI?

East Honolulu and Mililani Mauka have similar restriction levels.

East Honolulu, HI

Honolulu County

Some Restrictions

East Honolulu's large lots from Portlock to Kalama Valley must follow ROH Chapter 30 water management provisions plus Honolulu Board of Water Supply conservation stages during shortages.

View full East Honolulu rules β†’

Mililani Mauka, HI

Honolulu County

Some Restrictions

Mililani Mauka outdoor irrigation falls under ROH Chapter 30 and Board of Water Supply shortage stages that can restrict watering days and hours.

View full Mililani Mauka rules β†’

Key Facts Comparison

FactEast HonoluluMililani Mauka
CodeROH Sec. 30-2.3ROH Sec. 30-2.3
Shortage authorityBoard of Water Supply-
Shortage stagesFour graduated levels-
RebatesBWS rain barrel and xeriscape-
Operational rules-BWS shortage stages 1-4
Context-Central Oahu plateau
HOA role-Common-area irrigation

Highlighted rows indicate differences between cities.

East Honolulu FAQ

Are there day-of-week watering rules in East Honolulu?

Not in normal conditions. The Board of Water Supply imposes day-of-week schedules only when a numbered shortage stage is declared for Oahu.

Can I use the marina water to irrigate my Hawaii Kai yard?

Use of marina, brackish, or other non-potable water for irrigation is encouraged by Chapter 30 policy but requires compliance with health and backflow protection rules.

Mililani Mauka FAQ

Are watering days mandatory in Mililani Mauka?

Only when BWS declares a shortage stage. Normal operations have no fixed watering days, though BWS encourages early morning irrigation year round.

Does the Mauka HOA adjust common-area irrigation?

Yes. During BWS shortage stages, the Mililani Mauka Community Association adjusts park and streetscape irrigation schedules to match city-wide restrictions.

Compare other topics

See how East Honolulu and Mililani Mauka compare on other ordinance categories.

Want to add a third city?

Use our full comparison tool to compare up to three cities.

Open Comparison Tool