Conference Agenda

Overview and details of the sessions of this conference. Please select a date or location to show only sessions at that day or location. Please select a single session for detailed view (with abstracts and downloads if available).

Session Overview
Session 01A: Planning & Regulatory - Livestream
Monday, 13/Sept/2021:
10:30am - 12:00pm

Location: Room 400BC
East Building

Show help for 'Increase or decrease the abstract text size'
10:30am - 11:15am
ID: 289 / Session 01A: 1
Main Technical Program
Topics: Collection and Conveyance, Utility & Assessment Management
Keywords: Rehabilitation, Asset Management, Collection Systems, Strategic Planning, Capital Investment

One Doesn’t Just Walk into a Proactive Rehabilitation Program: SPU’s Strategic Quest.

Caroline Barlow1, Julie Crittenden1, David Gordon2

1Seattle Public Utilities; 2Blue Cypress Consulting, LLC; ,

Seattle Public Utilities (SPU) entered into a Consent Decree in 2013 to reduce combined sewer overflows and work towards eliminating sanitary sewer overflows. A major cause of sewer overflows in Seattle is structural failure. It is also a growing concern given that the City’s 1,420 miles of sewer pipes have an average age over 80 years and pipe rehabilitation has been historically underfunded. SPU increased pipe inspection and rehabilitation funding upon signing the Consent Decree, but recognized that there would need to be a holistic look at pipe rehabilitation to ensure long-term system reliability.

This presentation walks through SPU’s work to develop and secure funding of a long-term rehabilitation plan for its aging sewer system. This planning effort was not a single event, but a concerted effort through a series of strategic projects over four years; with each strategy building on one another. Participants will learn about SPU’s strategies for pipe inspection, condition evaluation, risk assessment, capital investment, and implementation planning. Particular focus will be spent on key aspects of the process such as incorporating service equity, increasing efficiencies, securing staffing for implementation, and preparing for adaptive management. This presentation will leave participants with a roadmap for how to move from a reactive to proactive rehabilitation program. It was not a simple and quick solution, but has set SPU up for reliable and sustainable long-term sewer service.

Brief Biography and/or Qualifications
Caroline Barlow, PE; Seattle Public Utilities (SPU): With 19 years of experience in the municipal utility industry, Caroline currently serves as the Rehabilitation Program Manager for SPU’s Drainage and Wastewater Line of Business, overseeing $30M in annual investments to rehab drainage and wastewater pipes. Caroline uses her utility engineering and project management experience to work closely with a team to define long term performance goals and identify resource needs to deliver a programmatic capital improvements portfolio. Caroline received her BS degree in Civil Engineering from Gonzaga University and is a registered Professional Civil Engineer in Washington State.

Julie Crittenden, Seattle Public Utilities (SPU): Julie is a program manager and strategic advisor with SPU and leads Seattle’s Capacity, Management, Operations and Maintenance Program. Julie has over 20 years of water resource management experience focused on drainage and wastewater planning, asset management, regulatory compliance, environmental assessment and permitting, and shoreline and stream restoration. She received her M.S. degree from the University of Washington, and her B.S. degree from the University of California, Davis.

11:15am - 12:00pm
ID: 223 / Session 01A: 2
Main Technical Program
Topics: Wastewater Treatment Process, Regulatory Challenges, Recycled Water & Resource Recovery
Keywords: reuse, recycle, beneficial, Klamath, NPDE

Klamath Falls Evaluates What to Do With Its Final Effluent

Randy Zollinger, Nigel Beaton, Eva Steinle-Darling

Carollo Engineers, Inc., United States of America; ,

In response to lower nutrient and temperature limits for continued river discharge, the City of Klamath Falls evaluated 100% reuse against continue river discharge. The City is looking for economical, long-term strategies that beneficially uses City’s final effluent, offers some regulatory certainty and promotes partnerships in addressing Upper Klamath River water supply and water quality concerns. This presentation will discuss reuse to augment agricultural irrigation needs involving the US Bureau of Reclamation, the Klamath Drainage District and the Lower Klamath National Wildlife Refuge. Under this reuse alternative, the City would divert its final effluent over the entire year to the Klamath Drainage District who in turn would beneficially use and manage the final effluent to meet irrigation demands of local growers and to help the Lower Klamath National Wildlife Refuge maintain habitat for migrating waterfowl. Reuse water management plans, permitting strategies and needed improvements to the City’s existing Spring Street Wastewater Treatment Plant to support a 100% reuse option will be reviewed and compared to a continued river discharge alternative. Critical factors in alternative selection will be discussed so other Cities facing similar water quality challenges may benefit from City of Klamath Fall’s experience.

Brief Biography and/or Qualifications
Randy is a project manager with 24 years of experience in providing planning, final design and construction management services for water and wastewater infrastructure improvement projects. He served as the assistant project manager in helping the City of Klamath Falls evaluate the reuse alternative. He collaborated with reuse partners, the Klamath Drainage District and the Lower Klamath National Wildife Refuge, and helped develop wastewater treatment, conveyance and water management strategies.

Nigel Beaton has 6 years of experience in water and wastewater treatment planning and design experience. He helped evaluate City of Klamath Falls Spring St. STP for both water recycling and continued river discharge options. Nigel helped evaluate secondary and tertiary treatment options and flow management options, including flow equalization.

Eva Steinle-Darling has 15 years of experience primarily focused on water reuse research and feasibility analysis, planning and design of reuse projects. She is Carollo Engineers' Reuse Innovation Lead. Eva helped review Oregon and California water recycling rules and requirements.

Contact and Legal Notice · Contact Address:
Privacy Statement · Conference: PNCWA 2021
Conference Software - ConfTool Pro 2.6.143
© 2001–2022 by Dr. H. Weinreich, Hamburg, Germany