Acknowledgments


Many individuals from several organizations contributed to this study. Technical and financial support came from the Water Research Foundation, the WaterRF Project Advisory Committee members, and the two water utilities that participated in the study, Clackamas River Water and the City of Lake Oswego. The authors wish to personally thank staff at CRW, especially Suzanne DeLorenzo for providing historical data from the CRW DWTP, Rob Cummings for helpful discussions regarding the water-treatment processes, and Lee Moore for his support for the project. Also at CRW, special thanks to Mike Avery and Tracy Triplett for conducting jar-test experiments and helping to service the in-situ sensors. The authors also thank and acknowledge the valuable contributions from Kari Duncan (City of Lake Oswego) for her help with project design and implementation and for providing historical data from the LO DWTP. Reliable assistance with source- and finished-water sample collection came from the DWTP operators at Clackamas River Water and City of Lake Oswego, and their efforts are greatly appreciated. 


This study benefited from the six-station network of water-quality and streamflow monitors in the basin, which is supported by the Clackamas River Water Providers (CRWP), Clackamas County Water Environment Services (CC WES), and Portland General Electric (PGE). The authors would like to thank Kimberly Swan (CRWP), Andrew Swanson (CC WES), and John Esler (PGE) for their support and help with funding this network. The authors also appreciate the contributions from Randy Kuntz, Promontory Park concessionaire, who provided daily reports on algal conditions in North Fork Reservoir and for generously providing access to a pontoon boat for sampling the reservoir.


The contributions made by staff at the Oregon and California USGS Water Science Centers are gratefully acknowledged—Stewart Rounds was instrumental in providing the software and computer programming that allowed continuous in-situ data retrieval and display in near-real-time; David Piatt, Michael Sarantou, Steven Sobieszczyk, and Tara Chestnut helped with sample collection and processing; Kathryn Crepeau conducted the DBPFP experiments; Micelis Doyle maintained the network of continuous water-quality monitors, and Rick Kittleson, Doug Cushman, Roy Wellman, Jay Spillum, Greg Lind, and Greg Olsen provided streamgage-operation and streamflow‑measurement support; Matt Johnston, Amy Brooks, and Melanie North provided telecommunications and computer support; and assistance with multivariate statistical analyses using R was provided by Ian Waite. Thanks also go to Kenna Butler for her assistance with various laboratory analyses and Travis von Dessonneck for data processing. 


Steven Ingebritsen (USGS, Menlo Park, CA) provided geochemical information on Austin Hot Spring, and Brian Pellerin (USGS, Sacramento, CA), Djanette Khiari (Water Research Foundation), and the Water Research Foundation Project Advisory Committee provided helpful comments on an earlier draft of the report.


First posted February 11, 2013