| http://www.w3.org/ns/prov#value | - ppbTotal trihalomethanes (TTHMs)Total trihalomethanes constitute the sum of four disinfection byproducts: chloroform, bromodichloromethane, dibromochloromethane, and bromoform.0.6 ppb1.2 ppbNo9.8 ppbNo80 ppbBarium (total)Barium is a mineral that enters drinking water through drilling and mining waste runoff, discharges from chemical industries and erosion of natural deposits.2 ppb2 ppbNo700 ppbNo
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