2025 Water-Use Efficiency Report

2025 Water Use Efficiency (WUE) Goals—Group ‘A’ Companywide Progress Report

Total Number of Systems Washington Water Owns and Manages

220 Group ‘A’ & ‘B’, Owned and Managed

Systems Evaluated for WUE

  • 126 Total Group ‘A’ Owned
  • 80 NW District Group ‘A’ Owned
  • 46 EP District Group ‘A’ Owned

* In 2020, WWS acquired Rainier View Water Company
** In 2022, WWS redefined Operating Districts for geographical efficiencies.

Goal Achievement Priorities

  1. Prioritize and fix systems with DSL over 10%
  2. Prioritize and fix systems with Source of Supply Demand in excess of 0.40 AF/ERU
  3. Prioritize and fix systems with Customer Demand in excess of 0.36 AF/ERU
  4. After companywide goals have been achieved, set system specific WUE goals.

Definitions

Group ‘A’: 15 or more connections or 25 or more population count.
AF: Acre-Feet
ERU: Typical residential connection

Graph showing 2025 Distribution System Leakage (DSL) Systems Exceeding 10%. In 2015, the NW District has 28 systems. In 2016, NW has 30. In 2017, NW has 29. In 2018, NW has 29. In 2019, NW has 34. In 2020, NW has 27. In 2021, NW has 30 and the EP District has 4. In 2022**, NW has 45 and EP has 12. In 2023, NW has 32 and EP has 32. In 2024, NW has 27 and EP has 34. In 2025, NW has 26 and EP has 22.

Graph showing 2025 Source of Customer Demand Systems Exceeding 0.36 AF/ERU. In 2015, the NW District has 5 systems. In 2016, NW has 4. In 2017, NW has 5. In 2018, NW has 5. In 2019, NW has 4. In 2020*, NW has 4. In 2021, NW has 5 and EP has 2. In 2022**, NW has 6. In 2023, NW has 11 and EP has 4. In 2024, NW has 3 and EP has 2. In 2025, NW has 3 and EP has 2.

Graph showing 2025 Source of Supply Systems Exceeding 0.40 AF/ERU. In 2015, the NW District has 7 systems. In 2016, NW has 8. In 2017, NW has 5. In 2018, NW has 8. In 2019, NW has 9. In 2020*, NW has 5. In 2021, NW has 8 and the EP District has 5. In 2022**, NW has 12 and EP has 2. In 2023, NW has 10 and EP has 6. In 2024, NW has 3 and EP has 3. In 2025, NW has 3 and EP has 6.

A printable version of this report (PDF) is also available.