The Future of Potable Reuse in Arizona A Changing Conversation Presented by: Timothy M. Thomure, PE, PMP Water Reuse Practice Lead HDR Engineering, Inc. President WateReuse Arizona ADVISORY PANEL ON EMERGING CONTAMINANTS May 17, 2013

Potable Reuse – A Changing Conversation 30 Years Ago: Deny (or) Delay 15 Years Ago: Depend 5 Years Ago: Disguise Today: Direct

Arizona’s Potable Reuse Triangle Steering Committee on Arizona Potable Reuse (SCAPR) Future Water Supply Needs Governor’s Blue Ribbon Panel

Governor’s Blue Ribbon Panel on Water Sustainability B.3 – Facilitating Indirect Potable Reuse (IPR) Create an IPR Multi-Agency Steering Committee to further advance the use of IPR by developing definitions, guidance and a statewide policy for IPR, streamlining agency reviews, and incorporating new technologies. Create an IPR Advisory Panel, reporting to the Steering Committee, to focus on the effectiveness and implementation of new technologies and field studies. Open a rulemaking process to develop the regulatory framework.

The Offer Mission: “To promote the responsible stewardship of Arizona’s water resources through education and advocacy for the best use of all water supplies” Project Mission: “To guide Arizona water interests in identifying and mitigating impediments to potable reuse (real or imagined) within industry standards of practice” Committed funding

Objectives 1.Identify impediments (real or imagined) 2.Define a common terminology 3.Gather best practices, state of the industry information, and case studies 4.Review California (Title 22) – NOT adopt 5.Create Advisory Panels 6.Conduct a scoping process to provide recommendations to ADEQ/ADWR 7.Develop a road map to potable reuse in Arizona

Process Form the Steering Committee Conduct Advisory Panels – Water Quality Regulations & Guidance – Public Perception – Technology Toolbox – Emerging Contaminants (APEC) White Paper(s)

Schedule Set up workshop on Technology in line with the WateReuse Technology Conference in May, 2013 Set up workshop on Public Perception in line with the AZ WateReuse Conference in July, 2013 Set up workshop on Water Quality Regulations in line with the WateReuse National Symposium in September, 2013 Coordinate with APEC during upcoming meetings Conclude this phase before January 2014

Tech Toolbox Outcomes Not a “one size fits all” technology solution Develop a table of treatment technology options with targeted results Develop a decision support flow chart for treatment trains – Input starting point – Input desired outcome(s) Support with case studies and prior work

“Stuck in the Middle with You” Treatment Based Approach Make it Happen Approach Water Quality Approach

Recycled Water in Arizona: Right Water for the Right Use Environmental Uses Reclaimed Water Energy Production Indirect Potable DPR

Some thoughts… Make it “right” for AZ AZ Informed by CA and TX processes Take what we need and leave the rest Judge a water by its quality, not its history Know the risks  need better testing technology Build a water quality framework for Arizona to provide predictable structure for future projects Discussion