Included in this set are three PFAS reports and two case studies:
1. AWWA’s Drinking Water Treatment for PFAS Selection Guide provides technical information on PFAS chemistry, proven technologies for PFAS treatment, special considerations when deploying these technologies in practice, and strategies for selecting treatment and design parameters. This guide was developed not only to assist systems actively addressing PFAS due to regulatory or non-regulatory drivers, but also to help water professionals better understand the challenges and considerations necessary in implementing these treatment technologies.
2. The Source Water Evaluation Guide for PFAS was developed in collaboration between AWWA volunteers and technical experts and is intended to support water professionals in understanding and characterizing the potential for PFAS occurrence in drinking water supplies. The guide provides background on PFAS characteristics and history, detailed information on the known sources of PFAS in the environment, and analytical methods and strategies for developing a monitoring plans. It also includes information about the importance of stakeholder communication throughout the process.
3. The Summary of Toxicological Research for PFAS provides water professionals with relevant toxicity research for PFAS as well as to characterize the state of that research. This report not only describes the wide-ranging efforts in the United States to better understand PFAS toxicity, but also assessments conducted by states and international agencies. This report also describes the noteworthy research gaps that exist and must be addressed.
4. PFAS Case Study: Cape Fear Public Utility Authority (CFPUA) operates one surface water treatment plant (Sweeney), one groundwater treatment plant (Richardson Water Treatment Plant), and one small groundwater well system, which together provide drinking water to over 200,000 people. The Sweeney Water Treatment Plant (WTP) treats surface water from the Cape Fear River. The WTP currently treats an average 14 MGD, has an existing design capacity of 35 MGD, and has the infrastructure in place to be rerated to 44 MGD without significant capital investments.
5. PFAS Case Study: Horsham Water and Sewer Authority (HWSA) supplies drinking water to approximately 7,800 residential, commercial, and industrial customers in Horsham Township, just north of Philadelphia, Pennsylvania. HWSA’s water system is supplied by 14 deep water wells and purchased water from two adjacent water suppliers, Aqua PA and the North Wales Water Authority (NWWA). HWSA treats water supplies with 11 PFAS treatment facilities, which range in size from 0.23 to 0.40 million gallons per day (MGD).