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🌍 Environmental Rules/Erosion Control

Mililani Town vs Mililani Mauka

How do erosion control rules compare between Mililani Town, HI and Mililani Mauka, HI?

Mililani Town has fewer restrictions than Mililani Mauka.

Mililani Town, HI

Honolulu County

Some Restrictions

Mililani projects requiring building, grading, stockpiling, or trenching permits must have an approved erosion and sediment control plan under ROH Sec. 18A-1.6.

View full Mililani Town rules β†’

Mililani Mauka, HI

Honolulu County

Heavy Restrictions

ROH Sec. 18A-1.6 requires approved erosion and sediment control plans for Mililani Mauka land-disturbing activities that need building, grading, stockpiling, or trenching permits.

View full Mililani Mauka rules β†’

Key Facts Comparison

FactMililani TownMililani Mauka
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Highlighted rows indicate differences between cities.

Mililani Town FAQ

Does a pool project need erosion controls?

Yes, pool excavation typically requires a grading permit and therefore an approved erosion and sediment control plan.

Are BMPs needed after work ends?

Yes, stabilization measures must remain in place until the site is permanently vegetated or hardscaped.

Mililani Mauka FAQ

Do I need a plan to cut into my Mililani Mauka hillside for a pool?

Yes. Hillside excavation typically requires a grading permit and an erosion and sediment control plan under Sec. 18A-1.6 given slope and runoff concerns.

How long must controls stay in place?

Temporary controls must remain and function until the site is permanently stabilized with vegetation or other approved measures in the plan.

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