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Joseph F. Harrison, P.E., CWS-VI, is technical director of the Water
Quality Association, Lisle, IL. He may be reached at (630) 505-0160.
Prior to joining the WQA in 1990, Harrison was chief, safe drinking
water branch for Region V of the EPA for 17 years.
While hard water is not considered to be unhealthy for people to drink, it can be very unhealthy for household plumbing, cleaning processes and water-using appliances.
