Skip to main content
CityRuleLookup
🌿 Landscaping Rules/Water Restrictions

Mililani Mauka vs Waipahu

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

Mililani Mauka and Waipahu have similar restriction levels.

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†’

Waipahu, HI

Honolulu County

Some Restrictions

Waipahu follows ROH Chapter 30 water management rules plus Board of Water Supply shortage stages, which hit leeward Oahu communities like Waipahu early during drought.

View full Waipahu rules β†’

Key Facts Comparison

FactMililani MaukaWaipahu
CodeROH Sec. 30-2.3ROH Sec. 30-2.3
Operational rulesBWS shortage stages 1-4-
ContextCentral Oahu plateau-
HOA roleCommon-area irrigation-
Shortage authority-Board of Water Supply
Shortage stages-Four graduated levels
Rebates-BWS rain barrel and xeriscape

Highlighted rows indicate differences between cities.

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.

Waipahu FAQ

Are Waipahu yards always on watering-day restrictions?

No. Day-of-week schedules activate only when the Board of Water Supply declares a numbered shortage stage. Otherwise, standard conservation practices apply.

Can Waipahu farmers near Kunia use non-potable water?

ROH Chapter 30 and BWS policy encourage non-potable use where available. Agricultural irrigation typically uses separate ditch systems or dedicated non-potable connections.

Compare other topics

See how Mililani Mauka and Waipahu 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