Brown Water Advisory Issued for Big Island Shorelines

Residents advised to avoid waters between Pololū Valley and Holoholokai Beach Park

Mar. 18, 2026 at 3:23am

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The Hawaiʻi Department of Health has issued a brown water advisory for shorelines between Pololū Valley on the Kohala Coast and Holoholokai Beach Park in Waimea on the Big Island. The advisory was issued due to recent storms and heavy rain, which can cause the water to contain higher than normal pollutant levels.

Why it matters

Brown water advisories are issued to protect public health and safety, as the discolored water may contain bacteria, chemicals, and other pollutants that can be harmful if ingested or exposed to. This advisory is particularly important for residents and visitors who frequently use these popular beach areas.

The details

The Department of Health is recommending that beach users stay out of the water when it appears brown or murky, and to avoid swimming, wading, or drinking water from any freshwater streams or ponds to prevent the risk of leptospirosis, a bacterial infection. The advisory will remain in effect for 48 to 72 hours after the rain has stopped and the beach has received full sunshine.

  • The brown water advisory was issued on March 17, 2026.

The players

Hawaiʻi Department of Health

The state agency responsible for issuing public health advisories and protecting the wellbeing of Hawaii's residents and visitors.

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The takeaway

This brown water advisory serves as an important reminder for beachgoers to be cautious of water quality and heed public health warnings, especially after heavy rainfall, in order to avoid potential exposure to harmful pollutants and bacteria.