Stormwater Management: Ewa Gentry vs Waipahu
How do stormwater management rules compare between Ewa Gentry, HI and Waipahu, HI?
Ewa Gentry and Waipahu have similar restriction levels.
Ewa Gentry, HI
Honolulu County
Ewa Gentry properties connecting to the city's separate storm sewer system are regulated by ROH Chapter 43, Article 11, which prohibits non-stormwater discharges and implements MS4 water quality standards.
View full Ewa Gentry rules →Waipahu, HI
Honolulu County
Waipahu's dense neighborhoods discharge stormwater toward Pearl Harbor and must comply with ROH Chapter 43, Article 11, which prohibits non-stormwater discharges to the city's MS4 system.
View full Waipahu rules →Key Facts Comparison
| Fact | Ewa Gentry | Waipahu |
|---|---|---|
| - | - |
Highlighted rows indicate differences between cities.
Ewa Gentry FAQ
Can I drain my pool into the street in Ewa Gentry?
No. Chlorinated pool water is a prohibited non-stormwater discharge under Sec. 43-11.22 and must be dechlorinated and disposed of properly.
Is washing my car in the driveway allowed?
Residential car washing is generally tolerated, but soapy runoff to the storm drain can still violate water quality standards if it carries pollutants.
Waipahu FAQ
What is an illicit stormwater discharge in Waipahu?
Any non-stormwater flow into the city storm drain, such as soapy water, chemicals, paint, or wastewater, is classified as an illicit discharge prohibited under Sec. 43-11.22.
What if my business rinses equipment outside?
Outdoor rinsing that drains to a storm inlet violates Sec. 43-11.22. Rinse water must be captured, directed to sanitary sewer with permission, or contained to prevent storm drain entry.
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