Stormwater Management: Kailua vs Mililani Mauka
How do stormwater management rules compare between Kailua, HI and Mililani Mauka, HI?
Kailua and Mililani Mauka 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 Mauka, HI
Honolulu County
Mililani Mauka properties connected to the city's separate storm sewer system fall under ROH Chapter 43, Article 11, which bars non-stormwater discharges and enforces MS4 water quality rules.
View full Mililani Mauka rules →Key Facts Comparison
| Fact | Kailua | Mililani Mauka |
|---|---|---|
| - | - |
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 Mauka FAQ
Can I drain my Mililani Mauka pool into a storm drain?
No. Chlorinated pool water is a prohibited non-stormwater discharge under Sec. 43-11.22 and must be dechlorinated and discharged according to city guidance.
What about washing paint brushes in my driveway?
Paint and solvent residues that reach the storm drain are prohibited discharges; clean brushes in a sink connected to the sanitary sewer instead.
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