Events Calendar

2026 Water Reuse Conference

Japanese Cultural Center of Hawaii

The Hawaiʻi Water Environment Association (HWEA) and the American Water Works Association – Hawaii Section (AWWA-HI) are excited to announce the 2026 Water Reuse Conference.

• Thursday, December 10, 2026
• Japanese Cultural Center of Hawaiʻi, Honolulu

Join water professionals from across the pae ʻāina for a day of learning, connection, and collaboration as we explore the innovations and best practices shaping the future of water reuse in Hawaiʻi. Whether you're an operator, engineer, regulator, student, or advocate, this conference is your opportunity to help sustain our most precious resource for generations to come. A pre-conference field trip to Honouliuli Wastewater Treatment Plant & Honouliuli Water Recycling Facility is scheduled for Wednesday, December 9, 2026. See below for more info.

The latest draft of the Technical Program will be provided once made available.

Registration rates are as follows:

Registration closes after November 25, 2026.  No refunds will be issued following November 25, 2026. 

*Pre-conference field trip is limited to 30 attendees on a first come, first served basis. All field trip attendees must be registered for the main conference.

 **Vendor/Exhibitor Booths includes up to two (2) vendor/exhibitor attendees, one (1) table, and up to two (2) chairs setup for the main conference at Japanese Cultural Center of Hawaii in a designated exhibitor area where attendees enter and gather during networking breaks.  Please note additional vendor/exhibitor attendees must register separately at the member/non-member conference rate. 

Pre-Conference Field Trip Information

Join us on a field trip to the Honouliuli Wastewater Treatment Plant (WWTP) and Honouliuli Water Recycling Facility (HWRF)! The tour will include the new secondary treatment at the WWTP and the recycling processes of the HWRF. It'll be a great way to kickoff the Water Reuse Conference with new and fellow colleagues.

• Wednesday, December 9, 2026
• 30 attendees maximum.
• Prepare to walk throughout the tours.
• Bring water and sun protection. Hard hats and safety glasses will be provided.
• Parking will be on the wastewater side. Additional instructions will be provided to confirmed attendees.
• Waivers must be completed prior to the tour. These will be provided to confirmed attendees.
• MANDATORY DRESS CODE at these working industrial sites.  ALL VISITORS MUST DRESS IN:
  • LONG or SHORT SLEEVES (no tank tops or bare shoulders) - Comfortable and light clothing recommended.
  • LONG PANTS (no shorts or skirts)
  • COVERED SHOES (no slippers, open-toed sandals, or high heels)

Sponsorship Information 

 If you have any questions, please contact the Water Reuse Committee Chairs at This email address is being protected from spambots. You need JavaScript enabled to view it. or (808) 748-5944.

Mahalo,
Lorna Heller & Preston Merrell
Water Reuse Committee Chairs

Refund Policy:

• All general cancellation requests must be made by emailing This email address is being protected from spambots. You need JavaScript enabled to view it...
• Requests must be made by the deadlines specified below to receive the refund amount of the registration order.
• Cancellations made by 10/23/2026 will receive a 95% refund of registration fees.
• Cancellations made by 11/25/2026 will receive a 50% refund of registration fees.
• Any cancellations made after 11/25/2026 will not receive a refund