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.

World Water Day "Shuffle Puzzle Contest"

  • Starting on Monday, March 7 through Tuesday, March 22, take the challenge and complete the online shuffle puzzle as fast as you can.
  • To play, either click here or on the puzzle below. 
  • To begin the puzzle, click "shuffle" in the bottom right corner above the help button. The timer is in the upper left hand corner above the actual puzzle.
  • When you complete the puzzle, a box will pop up with your time elapsed. Post your winning time, in the comment section on BWS's instagram page. If you're a winner, in order to claim your prize, you will need to email the BWS a screen shot of your time elapsed.
  • The first three participants with the fastest time, will win a variety of prizes from the BWS, ENV, and the Resilience Office, including a 35-gallon rain barrel.   
  • Deadline to post a screen shot of your  "time elapsed" is on Tuesday, March 22 at 12 PM.
  • You can try as many times as you want! Good luck.

Prizes include:

  • 35-gallon rain barrel (Grand Prize winner only)
  • ENV Tote Bag
  • ENV Water Bottle
  • ENV Scrubbers
  • ENV Retractable Straw (reusable)
  • ENV Pen (Total of 5)
  • ENV Booklet: "How Wastewater Treatment Works"
  • BWS Knapsack Bag
  • BWS Hand sanitizer (Total of 5)
  • BWS Stainless Steel Water Bottle
  • BWS Water Jug (Total of 3)
  • BWS Scrubber
  • BWS Mini Bag
  • BWS Toilet Flappers
  • BWS Shower Timer
  • BWS Lunch  Bag
  • BWS Tape Measure
  • BWS Pens (Total of 5)
  • BWS Booklet "Water For Life"l
  • CCSR Utensil Pack & Metal Straw (1 of each)

world water day

Quick Link: Contest Rules

2022 Theme: Groundwater - making the invisible visible

What is groundwater?
Groundwater is water found underground in aquifers, which are geological formations of rocks, sands, and gravels that can hold water.

Why is groundwater important to residents on Oahu? 
Unlike the other islands, Oahu relies solely on groundwater sources. That is why we must protect it from contamination and pollutants. The contamination of the military's Red Hill shaft increased awareness across Oahu about the immense value of having clean and fresh potable water, and why we must protect this resource.

The municipal water system has not been impacted by the military's water issue; however, out of an abundance of caution, the Board of Water Supply has modified its pumping operations to ensure it's delivering safe and dependable water for residents today and into the future.

While groundwater is invisible, its impact is visible everywhere. Our drinking water, sanitation, food supply, and natural environment all rely on groundwater.


  • Roger Babcock, Director of the City's Department of Environmental Services
Find out what "One Water" means and the importance of repurposing stormwater & wastewater.
  • Amy Tsuneyoshi, Water Resource Specialist at the Board of Water Supply
The benefits of having a healthy watershed and what threats it.
  • Arthur Aiu, Community Relations Specialist at the Board of Water Supply
Find out about where our drinking water comes from and what the theme "making the invisible visible" means.
  • Effective Ways for Farmers to Conserve Water
Cindy Goldstein from AgMatters, LLC talks about effective ways for farmers to conserve water.
  • Stuart Colman from Wastewater Alternatives & Innovations
Stuart talk talks about the importance of water - a vital resource for survival.
  • A Day Without Water at Mari’s Nursery
    Brendon Lau from Mari's Nursery talks about a day when the nursery lost water.

City & County of Honolulu Participating Agencies

city and county of honolulu
board of water supply
Resilience Office

Updated: 03/03/2022