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🌿 Landscaping Rules/Water Restrictions

Ewa Gentry vs Honolulu

How do water restrictions rules compare between Ewa Gentry, HI and Honolulu, HI?

Ewa Gentry and Honolulu have similar restriction levels.

Ewa Gentry, HI

Honolulu County

Some Restrictions

Ewa Gentry irrigation is subject to ROH Chapter 30 water management and Board of Water Supply shortage stages that can restrict days and hours of outdoor watering.

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Honolulu, HI

Honolulu County

Some Restrictions

Honolulu's Board of Water Supply (BWS) may declare mandatory water-conservation stages restricting outdoor irrigation timing and volume. The Land Use Ordinance also requires permanent irrigation systems for required landscaping on development sites.

View full Honolulu rules β†’

Key Facts Comparison

FactEwa GentryHonolulu
CodeROH Sec. 30-2.3-
Operational rulesBWS shortage stages 1-4-
Local contextLeeward drought-prone zone-
Non-potableEwa recycled water available-
Conservation authority-Board of Water Supply (BWS)
Irrigation system required-Yes, for LUO-required landscaping
Restriction levels-Voluntary to mandatory stages
Violation penalty-Misdemeanor, daily fines

Highlighted rows indicate differences between cities.

Ewa Gentry FAQ

Does Ewa Gentry have permanent watering day restrictions?

Not permanently. Schedules apply when the Board of Water Supply declares a shortage stage. Leeward Ewa areas often face earlier restrictions than windward Oahu.

Can I irrigate my Gentry lawn with recycled water?

Parts of the Ewa Plain have access to BWS non-potable recycled water for landscape use. Check with BWS and your HOA to see if your subdivision connects.

Honolulu FAQ

Are there currently mandatory outdoor watering restrictions in Honolulu?

Restrictions vary; the BWS may activate mandatory conservation stages during drought. Check the BWS website or call (808) 748-5000 for the current status.

When is outdoor irrigation recommended to avoid waste?

BWS recommends watering before 9 AM or after 5 PM to minimize evaporation. Weather-based irrigation controllers are also encouraged year-round.

Does new construction need a permanent irrigation system?

Yes. ROH Β§ 21-4.70 requires all required landscaping on development sites to have a permanent irrigation system installed.

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