| http://www.w3.org/ns/prov#value | - a chemical that enters water from fertilizer runoff, leaching septic tanks, and erosion of natural deposits.0.06 ppm0.17 ppmNo1 ppmNo1 ppmFoaming 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.66.67 ppb200 ppbNo
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