ACE18 Onsite Program ACE18 Program Digimag | Page 82

PROFESSIONAL PROGRAM
Wednesday, June 13, 2018
WED42 
Side Effects of the California Drought and Lower
Water Use
1:30–3:00 p.m.
Room: Lagoon KL
Track: Water Resource Management & Potable Reuse
Moderator: Sue Mosberg WED44 
Chloramination: Current Practices and Future
Challenges
1:30–4:30 p.m.
Room: Lagoon G
Track: Water Quality Challenges
Moderator: Scott Alpert
California’s unprecedented drought required unparalleled actions. This
session examines the impacts of the California drought response and
water conservation on water quality, utility systems, and how utilities
are looking to improve reliability and resilience through collaboration. To meet regulatory requirements, many utilities are employing
or considering chlorination. Chloramine use requires an
understanding of water chemistry, and operational control to
maintain disinfection residual and minimize DBP formation. This
session will highlight current practices and challenges with
chloramine use. Research efforts, utility case studies, and future
trends will be discussed.
1:30 
Bay Area Regional Reliability: Partnering to Improve the San
Francisco Bay Area’s Drought Resilience
Jenny Gain, Brown and Caldwell, Tracy Hemmeter, Alice Towey
2:00 
Drought Impacts on Disinfection Byproducts in San
Francisco’s Water Supplies: Monitoring, Mitigation,
and Response
E nio Sebastiani, San Francisco Public Utilities Commission,
Manouchehr Boozarpour, Keyvan Moghbel, Gregg Olson
2:30 
Adapting to Change—Declining Flows and Utility Systems
Wendy Broley, Brown and Caldwell, Jocelyn Lu
WED43 
Jackpot: Innovative Solutions to Water Quality
Challenges
1:30–4:30 p.m.
Room: Surf EF
Track: Water Quality Challenges
Moderator: Paul Swaim
Bench-, pilot-, and full-scale testing can supply answers an entity
needs for process and facility improvements. The long-term
benefits provide proof of concept without the expense of a full
implementation. This session explores the results of testing to
improve water quality challenges.
1:30 
Chloramines—Where Have We Come From? Disinfectant
Residual and Nitrification Potential
Gregory Harrington, University of Wisconsin–Madison
1:50 
Chloramine Disinfection—Where We Are—The AWWA 2017
Survey Results
Ashley Waldron, CH2M
2:10 
Using Web-Based Applications to Simulate
Chloramine Stability
David Wahman, USEPA/ORD
2:30 
Chloramines and NDMA
Paul Westerhoff, Arizona State University School of
Sustainable Engineering and the Built Environment
2:50 
Chloramination—The Large Utility Perspective
Susan Teefy, East Bay Municipal Utility District, Brett Kawakami,
Cindy Hunt, Damon Hom, Debra Skeaton
3:10 
Chloramination—The Small Utility Perspective
Joshua Lighton, Iowa American Water
1:30 
Pilot Testing of a Modified Backwashing Procedure to
Maintain Production During High Turbidity Events
Julia Lew, Las Vegas Valley Water District, Eric Wert 3:30 
Choosing Between Free Chlorine or Chloramine Disinfection:
An Operational Perspective
Mark LeChevallier
2:00 
Resilient Solutions for a Small Surface Water Treatment
System Facing Extreme Turbidity Events
Jeff Ashley, Morrison Maierle, Inc. 3:50 
Panel Discusssion
Gregory Harrington, University of Wisconsin–Madison
Mark LeChevallier
Joshua Lighton, Iowa American Water
Susan Teefy, East Bay Municipal Utility District
David Wahman, USEPA/ORD
Ashley Waldron, CH2M
Paul Westerhoff, Arizona State University
2:30 
Oak Glen WTP: Expanding a Dissolved Air Flotation Facility
with Challenging Water Quality
Eileen Feldman, Hazen and Sawyer, Adam Kane, Timothy
O’Brien, Christopher Olson, Christine Thornton, Matthew Valade
3:00 
Pre-oxidation Guidance for Microcystis-Laden Water Based
on Release of Intracellular Microcystins
Katie Greenstein, Southern Nevada Water Authority, Craig
Adams, Erik Rosenfeldt, Eric Wert, Arash Zamyadi
3:30 
Cyanotoxin Control in Toledo: From Bench Scale to Design
Robert Hulsey, Black & Veatch, Nick Burns, Jim Donnell,
Jack Kane, Andy McClure, David Vallejo
4:00 
Development and Performance of a Tracer Study to Improve
Water Distribution Operations
Russell Deason, Essey Woldemariam, DC Water, John Civardi,
Getachew Melsew, Maureen Schmelling
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