ral deposits.5.63 ppb5.63 ppbNo100 ppbNo100 ppbFoaming agents (surfactants)Foaming agents (surfactants) are detergents or detergent-like substances used as cleaning agents in industrial and consumer goods such as personal care products; they are also used as inert ingredients in pesticides.61 ppb61 ppbNo500 ppbNo500 ppbNOTE: Each dot in the above graph represents one month.* Water utilities are no