Events throughout the year promoting stewardship and care of Oahu's water resources.

  • World Water Day (March 22)

    Every year on March 22 the Board of Water Supply (BWS), City and County of Honolulu's Department of Environmental Services (ENV), government agencies, businesses and partners around the globe celebrate World Water Day. It's an annual United Nations Observance, that celebrates water and raises awareness of the 2 billion people currently living without access to safe clean drinking water. 


  • Source Protection Week (Sep 25 - Oct 1)

    Join the Board of Water Supply for Source Protection Week, Sept. 25 to Oct. 1, as we raise awareness about the importance of caring for our precious water sources.