Board of Water Supply events throughout the year promoting water conservation.


  • Imagine A Day Without Water 2021

    Join the Board of Water Supply and our state and city agency partners to encourage Oahu water users to Imagine A Day Without Water on Wednesday, October 21. This one-day nationwide campaign focuses on the importance of freshwater and the need to invest in water infrastructure.

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  • Detect-A-Leak Week (April 10-16)

    Leaks can run, but they can’t hide! Did you know that 10 percent of homes have leaks that waste at least 90 or more gallons of water per day?

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  • Ka Wai Wednesdays (April 20 & April 27)

    Join us on Instagram (@BWSHonolulu) for Ka Wai Wednesdays. A contest designed to test your knowledge  about water conservation.

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  • Water Conservation Week

    The new 2022 Water Conservation Calendar, showcasing winning artwork and poetry from the 2022 poster and poetry contests is available at the BWS Public Service Building lobby and Kapolei Hale during regular business hours, while supplies last.

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  • Smart Irrigation Month (July 2022)

    The Board of Water Supply reminds water users that July is Smart Irrigation Month, which is the time when outdoor water use typically increases. Find out the benefits of using smart irrigation devices and practices. Let's all work together to make every drop count! 

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  • Imagine A Day Without Water 2022

    Join the Board of Water Supply and our state and city agency partners to encourage Oahu water users to Imagine A Day Without Water on Wednesday, October 21. This one-day nationwide campaign focuses on the importance of freshwater and the need to invest in water infrastructure. Make sure to check our social media pages for informative graphics and short videos about the value of water. Also, on October 21, join us for our "One Water Forum" and win prizes by participating in our "One Water" contest on Instagram. What would your day be like without water?

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