APW Water Scene Investigation
Inspire participants to adopt home water conservation practices through the installation of water efficient technology and the comparison of their savings with other water users'.

Water Scene Investigation

While students and teachers are remote schooling, we have moved the Water Scene Investigation online. To order your home Water Scene Investigation Kit and join Drippy in investigating water waste at your home please click here:

 Water Scene Investigation at Home 

Water Scene Investigators use their powers of observation and skills at scientific data collection to carry out an investigation of water use. Sleuthing for signs of water waste they apply their knowledge of water auditing at home. Participants in the WSI communicate with family members about their water use patterns and measure their faucets’ average flow rate before and after the installation of a new water efficient aerator. WSI Investigators file their report here at the WSI Reporting Portal. They can then compare their water savings with Water Scene Investigators across the state.

Top 10 Yearly Water Savings

(gallons per year)

3 water users will save a total of 11,972.00 gallons per year (gpy)of water because they have installed new aerators through the Water Scene Investigations Program in the 2017-2018 school year. The following graph represents the Top 10 water savers.

The WSI program can be used by educators, businesses, public agencies, non-formal education, and the community to engage 5th through 9th grade students in a project focused on water conservation, efficiency, and water auditing. The WSI is a two‐day, in‐classroom project; the two days should be separated by a week to allow for homework completion. It may also be easily adapted for non‐classroom use, for example in community groups or clubs, with youth or with adults.

Close of aerator change

The WSI inspires simple actions that result in real water savings. This year, students involved in APW programs that use the WSI activity in and out of school saved a projected 18,973,169 gallons of water through applying their knowledge and installing water efficient devices.

The WSI is a participatory method of learning STEM skills. Students utilize math skills by measuring water use before and after the installation of new faucet aerators, and then calculating annual water use in gallons per year using mathematical thinking skills. They gain critical awareness of scientific principles of measurement, accuracy, prediction, observation, problem solving, analysis and well-reasoned conclusion-making based on data-driven evidence as they perform the faucet audit with their own hands and minds.

Jake measures flow rate with a shower bag.

WSI Investigators will:

  • Brainstorm household water uses
  • Learn about water efficient technology
  • Learn how to install an aerator on a faucet
  • Follow a set procedure
  • Measure water flow and inventory water use
  • Make mathematical conversions
  • Analyze scientific data and draw conclusions
  • Make recommendations for ways to use water more efficiently


Thank you

APW is proud to have collaborated with districts, schools and water providers to bring 71 to teachers and, through them, to Arizona students.

Sponsored by:

SRP logo
Arizona Department of Water Resources
Tucson Water

Contact APW

If you would like more information about the Water Scene Investigation, please contact us:
Pam Justice

Latest News

wsi - aerator audit
Apr 12, 2016 | AMWUA

The Finley Farms WSI was such a great success, it drew the attention... Learn more.

May 08, 2015 | Water Resources Research Center

Arizona Project WET's Water Scene Investigation (WSI) program in... Learn more.

Recognition for APW Water Scene Investigation

Nov 05, 2013

ANREP awarded a 2013 Gold Award in the Educational Material - Long... more

Arizona Project WET Sponsors