Each Health Advisory gives the useful and relevant data on the health effects associated with each contaminant, and gives concentrations of the contaminant that would not cause adverse health effects during various periods of exposure. Complete sections also cover information on available analytical methods and treatment techniques for the contaminants. This essential technical guide is a must for water treatment plant supervisors, managers and operators. Federal, state, local and public officials who are responsible for drinking water quality and public health in the event of emergency spills or pesticide contamination will value this easy-to-use reference.