10. RESOLUTION SUPPORTING FEDERAL PFAS LEGISLATION THAT PROTECTS RATEPAYERS AND WATER/WASTEWATER AGENCIES The City of Tustin Water Services relys on the Orange County Groundwater Basin (Basin) to provide over 80% of the City's water supply. The Orange County Water District (OCWD) manages the Orange County Groundwater Basin that supplies water supply to 2.5 million people in north and central Orange County. Per-and polyfluoroalkyl (PFAS) substances have been detected in the Basin, entering primarily via the Santa Ana River whose flows infiltrate into and recharge the Basin. Although chemical manufacturers are the original source of PFAS chemicals, cities and water agencies must find ways to remove them from local water supplies. PFAS impacts to Orange County are estimated to cost more than $1 billion, over 30 years-a cost that will likely increase. City Staff and OCWD recommend supporting federal legislation that protects ratepayers and water/wastewater agencies from these devasting impacts and urges Congress to cast votes that support these public policy positions.