Kailua vs Mililani Town
How do stormwater management rules compare between Kailua, HI and Mililani Town, HI?
Kailua and Mililani Town have similar restriction levels.
Kailua, HI
Honolulu County
Kailua's beach-adjacent watersheds are protected by ROH Chapter 43, Article 11 and Chapter 14, Article 12, which restrict non-stormwater discharges to the city's separate storm sewer system.
View full Kailua rules →Mililani Town, HI
Honolulu County
Mililani stormwater is regulated under ROH Chapter 43 Article 11, which prohibits most non-stormwater discharges to the city's separate storm sewer flowing to Waikele Stream.
View full Mililani Town rules →Key Facts Comparison
| Fact | Kailua | Mililani Town |
|---|---|---|
| - | - |
Highlighted rows indicate differences between cities.
Kailua FAQ
Can I wash my car in the driveway?
Occasional home car washing is tolerated, but detergent-laden runoff into the storm drain can violate the discharge rules, especially near the beach.
What about pressure-washing the house?
Rinse water should be contained on landscaping where possible, not allowed to flow into the storm drain carrying paint or chemicals.
Mililani Town FAQ
Can I wash my car in my Mililani driveway?
Occasional washing on grass is generally fine, but detergent-laden runoff flowing into the street drain is a prohibited discharge.
Is yard fertilizer regulated?
Over-applying fertilizer so runoff reaches the storm drain can be cited; follow label rates and sweep granules off hard surfaces.
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