Presentations & Reports
Presentations at Conferences and Meetings
- The National Academies of Sciences, Engineering, and Medicine, June 2019
- American Water Works Association (Platform-School Water Quality), June 2019
- American Water Works Association (Platform-Home Water Quality), June 2019
- EES Symposium, April 2019
- VOC Fate in Water Systems prepared for CA Camp Fire Task Force, March 2019
- AWWA Distribution Systems Subcommittee 'Beyond the Meter', December 2018
- US Green Building Council Greenbuild, November 2018
- Plumbing Manufacturers International Conference, November 2018
- Indiana Water Environment Association Conference (Chemical Quality), August 2018
- Indiana Water Environment Association Conference (Transition), August 2018
- National Environmental Health Association Conference, June 2018
- American Water Works Association (Poster), June 2018
- American Water Works Association (Platform-Chemical Quality), June 2018
- American Water Works Association (Platform-4 Month Fixture Use), June 2018
- Emerging Water Technologies Symposium, April 2018
- American Council for an Energy-Efficient Economy Hot Water Forum, March 2018
- American Chemical Society Spring Meeting, March 2018
- US EPA Project Progress Meeting - Year 1, December 2017
- Society of Risk Analysis Conference, December 2017
- U.S. Green Building GreenBuild Conference, November 2017
- USEPA Water Workshop, August 2017
Reports and Other Documents
- Drinking Water and Plumbing After the Camp Fire (June 27, 2019 in Paradise, CA)
- Opinion (June 16, 2019) to the California Governor's Office of Emergency Services and State Water Resources Control Board about the plumbing testing guidance issued June 14, 2019
- Opinion (March 26, 2019) to the California Governor’s Office of Emergency Services (CalOES) Camp Fire Water Task Force describing considerations for decontaminating high-density polyethylene (HDPE) services lines by flushing
- Opinion (March 24, 2019) to the California Governor's Office of Operations of Emergency Services (CalOES) with respect to their need for clarity on Camp Fire Waste handling
- Opinion (March 11, 2019) to the State Water Resources Control Board with respect to their decisions regarding drinking water Camp Fire response and recovery
- Opinion (February 20, 2019) describing recommendations for agencies responding to the Camp Fire drinking water contamination
- Case Study: Fixture water use and drinking water quality in a new residential green building. Chemosphere. 2017. Available at https://doi.org/10.1016/j.chemosphere.2017.11.070 or contact us for a copy.
Testing was conducted in a newly renovated single-family home for the first 4 months of use. The plumbing system was PEX type A pipe installed using trunk-and-branch design. More than 64 million data points were collected related to fixture water use and were analyzed. Drinking water sampling was conducted periodically at various locations in the home. Water was tested for both chemical, microbiological, and odor characteristics.
- During the study, the maximum fixture water stagnation time was 72 hours.
- Hot water contained greater levels of bacteria and organic carbon than cold drinking water.
- Chemical and bacteria levels varied across fixtures within the building.
- Pb, Fe, and Zn exceeded EPA standards, but only at the least frequently used (and monitored) fixture in the basement.