Is it OK to drink Hawaii tap water?

Yes, it is safe to drink and use tap water on the island of O?ahu including in Waikiki. The Board of Water Supply in Hawai?i works in conjunction with State and Federal agencies, such as the U.S. Environmental Protection Agency and Hawai?i State Department of Health, to ensure the water in Hawai?i is safe to drink.



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The lens-shaped body of fresh water that exists within Oahu's porous volcanic rock is called an aquifer, or fresh water lens. This water is among the cleanest anywhere, having been purified through years of percolating downward through soil and volcanic rock.

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The short answer is: yes. Hotels follow the same drinking water standards as other businesses and homes. With the Safe Drinking Water Act (SDWA) in effect, there is a specific process to decontaminate water supplies to a level that's deemed safe to drink.

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Avoid the Ocean During Do not swim in the ocean in the dark, and if you are a visitor and arrive at the beach early, do not enter the water until a lifeguard is on duty (at a designated State Beach Park). If it's time for the lifeguards to leave for the day, it's best to err on the side of caution and exit the ocean.

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Hawaii's ocean water is nutrient deficient. This is common in tropical areas with warm surface water temperatures. A lack of nutrients means there are fewer phytoplankton and algae in Hawaii's water, which makes it more blue.

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Ground water is one of Hawaii's most important natural resources. It is used for drinking water, irrigation, and domestic, commercial, and industrial needs. Ground water provides about 99 percent of Hawaii's domestic water and about 50 percent of all freshwater used in the State.

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Kauai is the safest island in Hawaii, with the lowest violent and property crime rate compared to other islands.

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Finland. Finland, known as the country with the cleanest tap water, boasts 168,000 lakes and 647 rivers, out of which a staggering 85% have been deemed to have high-quality water.

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The Cost of Clean Water Oestradiol is a major type of oestrogen that the more than 2.5 million British women on the contraceptive pill flush down their toilets and into our future water supply. Researchers found this potent hormone in 80% of the water at the 50 sites they tested.

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After heavy rains, stay out of the ocean until the water clears. Don't swim in the mouths of rivers or streams or in any murky areas. Murky waters attract predators (think “shark”), and you don't want to be mistaken for a fish or turtle when they are looking for a snack. You'll find more Maui ocean safety tips here!

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Encounters between sharks and people are infrequent, and most inshore species pose little threat to humans. Although any shark may be potentially dangerous, especially if provoked, it is believed that only a few species of Hawaiian sharks have been responsible for biting people.

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