East Honolulu vs Pearl City
How do rainwater harvesting rules compare between East Honolulu, HI and Pearl City, HI?
East Honolulu and Pearl City have similar restriction levels.
East Honolulu, HI
Honolulu County
East Honolulu permits residential rainwater harvesting. No Honolulu ordinance restricts collection, and the Board of Water Supply offers rebates attractive for large Hawaii Kai and Aina Haina lots.
View full East Honolulu rules →Pearl City, HI
Honolulu County
Pearl City allows residential rainwater harvesting with no ordinance restriction. Rain barrels are practical for yards in Pacific Palisades and Manana, with BWS rebates available.
View full Pearl City rules →Key Facts Comparison
| Fact | East Honolulu | Pearl City |
|---|---|---|
| Ordinance | None specific to harvesting | None specific to harvesting |
| Permit-free limit | Up to 360 gallons outdoor | Up to 360 gallons outdoor |
| Rebates | Board of Water Supply offers | Board of Water Supply offers |
| Guidance | UH CTAHR catchment program | UH CTAHR catchment program |
Highlighted rows indicate differences between cities.
East Honolulu FAQ
Do I need a permit for a rain barrel in Hawaii Kai?
No. Outdoor catchment for irrigation with storage up to 360 gallons is exempt from plumbing permits and no Honolulu ordinance restricts it.
Can I use collected rainwater for drinking?
Potable use systems must meet Hawaii Department of Health standards and typically require treatment. Most East Honolulu residents use catchment only for landscape irrigation.
Pearl City FAQ
Do Pearl City HOAs allow rain barrels?
Rules vary by association. Many allow screened rain barrels; check your specific condo or townhouse association's architectural guidelines before installing.
Is BWS rebate available for Pearl City rentals?
Rebates are typically issued to the account holder; renters should coordinate with landlords since the BWS account holder receives the rebate.
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See how East Honolulu and Pearl City compare on other ordinance categories.
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