Open Water Data

Hanamaulu Stream mouth

Hanamaulu, Hawaii, United States

  • Enterococcus
    FAIL 2035mpn (single) Sat, Mar 14, 2026 at 12:00pm
  • Water Quality Status
    Failed tests Sat, Mar 14, 2026 at 12:00pm

This freshwater stream feeds Hanama'ulu Bay, causing onshore waters to be murky in the bay. Despite a lack of "Brown Water Warnings" from the Hawaii Department of Health, the Surfrider Foundation strongly reccomends staying out of the stream because bacteria levels tend to be very high. Despite the polluted stream water, the Hanamaulu Beach Park is a nice family-friendly park with a playground, bathroom and free parking.

The description above was copied from or heavily based on Swim Guide, with permission.

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