| http://www.w3.org/ns/prov#value | - b1.5 ppbNoNo60 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.180 ppb180 ppbNo500 ppbNo500 ppbNOTE: Each dot in the above graph represents one month.* Water utilities are noted as exceeding the legal
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