Water Reuse Pacific Northwest (WR-PNW) will proudly present a reuse track at this year’s PNCWA conference to benefit members, advance ongoing innovation and showcase industry collaboration.  The reuse track uses results from WR-PNW’s series of workshops within Idaho, Oregon, and Washington as a foundation for our track.  These workshops identified drivers for reuse implementation, common themes and action items focused on regulatory frameworks, public outreach and collaboration/networking support.  Please join our one-day track and engage in our common vision to advance regional reuse.  

Water Reuse Conference is held as part of PNCWA - Tuesday, September 13, 2022

Session 1 - National Water Reuse Advocacy and Action Plan


  • Matt Shroll, WRA PNW President and Stantec Professional Engineer
  • Greg Fogel, WRA Director of Government Affairs

This session will cover:

  • Introduction to the WateReuse Association Pacific Northwest (WRA PNW) recent accomplishments, future opportunities and interactions within both the Pacific Northwest Section and National WRA.
  • Highlight the WRA's federal advocacy to advance water recycling across the country.  The discussion will cover the recently passed Infrastructure Investment and Jobs Act of 2021 and will include updates on implementation of the law, including the administration of federal grant and loan programs as well as the application of new Build America, Buy America requirements. The presentation will also include a review of the WateReuse Association's work on FY 2023 appropriations and the National Water Reuse Action Plan (WRAP). 
Session 2 - Cheney Washington's Purple Pipe Project
  • Presenters: Todd Ableman, Director of Public Works, City of Chenye

  • Allison Esvelt, Water Treatment System Processor, Esvelt Environmental Enginnering

Session 3 - Advancing State Level Reuse Policy with Grass Roots Efforts (OR)


  • Susan Schlangen, WSC Professional Engineer
  • Shelly Parini-Runge, Clackamas WES External Affairs

This session will cover:

The WateReuse Pacific Northwest section advocates for a thorough and planned approach to recycled water implementation—an approach that is both sustainable and iterative. By choosing to actively advance water recycling now, communities can avert future water supply issues and choices that will be forced upon them in the future.

As a result of a series of advancing water-reuse workshops, Oregon members were called to action; now is the time for water agency leaders to come together to summon political will, innovate around technical and financial approaches, educate our communities, and champion our aspirational vision. The Oregon subcommittee for Legislative & Regulatory Affairs was formed to address this charge, and has set forth the following action plan:

  • Support improvements to regulatory frameworks and processes through partnership and collaboration with DEQ and other clean water associations.
  • Develop informational and outreach materials for state legislators, key policy makers, and other state leaders.
  • Monitor emerging legislation and regulatory activity that impacts water reuse programs.
  • Provide a conduit for networking, information sharing, and support for challenging issues such as grant application development, public perception issues, permitting approaches, and more.

This presentation will share results of our discovery efforts, providing a summary of the “State of Reuse in Oregon” that forms the basis of our collaborative action plan. The discussion will provide context for specific challenges, highlight the opportunities for positive change, and share results of our progress. We invite engaged attendees to join our mission in establishing strong frameworks for innovative and community-centric water reuse and to be part of next steps in advancing reuse in Oregon.

Session 4 - LOTT Reclaimed Water Infiltration Study - Start to Finish


  • Wendy Steffensen, LOTT Clean Water Alliance
  • Jeff Hansen, Project Manager, HDR Engineering
This session will cover:

The LOTT Clean Water Alliance provides services to treat wastewater for the urban areas of Lacey, Olympia, and Tumwater in Thurston County, Washington (at the southern end of Puget Sound).  Since 2006, LOTT has also produced Class A Reclaimed Water, which is used for irrigation and other non-drinking purposes or is sent to infiltration basins where it recharges groundwater.  LOTT’s long-range plan for meeting future wastewater needs has been centered on expanding reclaimed water production and groundwater recharge. To address questions about possible health and ecological effects from residual chemicals that may remain in reclaimed water, LOTT conducted an in-depth scientific study. The study was intended to provide local scientific data and elicit community perspectives to help inform decisions about future reclaimed water treatment and uses.

The study, scoped in 2013, was a multi-year, four-task project. Task 1: Water Quality Characterization involved monitoring of surface water, groundwater, and reclaimed water to establish baseline water quality conditions.  Task 2: Treatment Effectiveness Evaluation utilized tracer testing, water quality sampling and modeling to understand fate and transport of residual chemicals within the study area. Task 3: Risk Assessment was a stepwise analysis to consider potential exposure and risk to human and ecological health. Notably, the infiltration of reclaimed water was found to pose no ecological risk and very low human health risk. Task 4: Cost-Benefit Analysis assessed the efficacy of advanced treatment trains to reduce potential risk from residual chemicals. Study results support the continued use of reclaimed water for groundwater replenishment. Continued monitoring and sampling efforts to better understand sources of chemicals of interest will help inform source control and pretreatment activities. Tracking changes in our scientific understanding of these chemicals, new and different chemicals, and regulations will be important in assessing if additional actions are warranted in the future to mitigate risk. 

This presentation will provide an overview of the study and its findings.

Session 5 - City of Boise Recycled Water Program Start Up (Phase 1)


  • Emily O’Morrow, Brown and Caldwell EIT
  • Royce Davis, City of Boise Recycled Water Program Manager

This session will cover:

The City of Boise (City) Recycled Water Program (RWP) enables the vision and outcomes set forth by the

Water Renewal Utility Plan (Utility Plan). This program will shift how Water Renewal Services (WRS) uses

and manages water and will enhance water resiliency and environmental outcomes while protecting economic development and public resources. The RWP combats future water shortages by recycling water within the city’s service area through aquifer recharge and industrial reuse. Aquifer recharge represents long-term investment in future water supply by enabling continued future aquifer withdrawal. Diversifying water supply sources for industry will relieve pressure on groundwater.

 The City’s RWP will be developed in a three-phase process:

 Phase 1: Program Development. Phase 1 includes development tasks to establish a City recycled water

utility framework and prepare for RWP implementation. The outcome of these activities will be a permitted recycled water utility with community buy-in that supports a resilient water supply with a more sustainable and equitable future for Boise’s citizens. The following six areas of work are the primary focus of this phase:

  • Program management
  • Community engagement
  • Recycled water utility development
  • Permitting
  • Water quality and pilot testing
  • Land acquisition

 Phase 2: Solutions Development. Phase 2 finalizes meaningful design criteria and organizational

changes through a Project Definition Report and Recycled Water Program Workforce and Organizational


 Phase 3: Design, Construction, and Commissioning. Phase 3 brings the RWP vision into a reality by moving concepts developed in Phases 1 and 2 into design details followed by construction and commissioning.

 This presentation will focus on the progress of Phase 1 of the three-phase process.

Session 6 – Onsite Non-potable Water Systems Rule (WA decentralized reuse)


  • Mamdouh El-Aarag, Washington Department of Health, Civil Engineer 

 This session will cover:

 In the face of ever-decreasing water supplies and increasing demands on those supplies resulting from population growth, new approaches to develop alternative water supplies is needed.  One of these approaches is water reuse.  Reclaimed water is the main option for water reuse in the State of Washington.  Onsite non-potable water systems will be another option as the Department of Health has initiated rulemaking to meet the directive in Engrossed Substitute House Bill (ESHB) 1184 (Chapter 156, Laws of 2021).  This presentation will go through the proposed onsite non-potable water system rule in Washington State.  The new rule will establish risk-based water quality standards for onsite treatment of non-potable alternative water sources for non-potable end uses.

Session 7 – Reuse Regulator Session and Q&A (WA, OR, ID, NV, TBD)


  • Oregon Reuse Regulator (TBD)
  • Idaho Reuse Regulator (Tressa Nicholas)
  • Washington Reuse Regulator (TBD)
  • Other state regulator (TBD – Nevada, New Mexico, etc)

This session will cover:

 Regulations for recycled water have historically been driven from a state level which leaves a regulatory framework that is unique for each state.  This has been true for the three states in the Pacific Northwest: Oregon, Washington, and Idaho.  This regulatory panel discussion will focus on the regulatory drivers, framework and stakeholders for each state and also identify similar issues and potential solutions from other state regulator experiences.  In addition, the panel will discuss significant take-aways and from the Sunday regulator session including thoughts on how regulators can better integrate with reuse stakeholders and what challenges they face along with thoughts on how potential reuse users can efficiently and effectively navigate the regulatory waters.  The panel will be comprised of representatives of regulatory agencies from all three states.  They will take pre-formulated questions from the panel moderator and take audience questions.