Establish requirements for all American Water state utilities’ surface water treatment plants to undertake the following activities:
1. Conduct an inventory of all hazardous chemicals or classes of hazardous chemicals that are considered a potential source of significant contamination stored in the utility’s most vulnerable source water protection area (e.g., Zone of Critical Concern). Chemicals may be identified by accessing publicly available information, which may include Tier II reporting forms submitted to local emergency planning committees and electronically available information from federal, state or local databases.
2. For each inventoried chemical or class of chemicals, conduct a prioritized assessment to determine if existing analytical methods are available to detect the presence and/or concentration of the chemical or class of chemicals in the event of a release to the water supply and if the chemical or class of chemicals is capable of being treated or removed by the utility’s water treatment process.
3. For all chemicals or classes of chemicals that are not capable of being treated or removed by the treatment process, develop a contingency plan to respond to contamination events (e.g., as modeled by WVAW’s Kanawha Valley Water System June 2016 Source Water Protection Plan).