Ensuring the quality of drinking-water.

Background In May 2000, the drinking water in Walkerton, Ontario became contaminated with e-coli. More than 2,300 residents fell inn and seven people ultimately died. Officials identified the primary source of contamination as agricultural manure runoff into area water wells. The investigation found that the Walkerton public utility authority had neglected its responsibility to perform daily residual chlorine testing. The investigation also determined that Walkerton’s water supply had been generally mismanaged, including inadequate chlorine dosing, monitoring, testing, and inspection.