This slide presentation presents information on 10 lessons: adverse impacts of enhanced
coagulation are not usually that bad; costs at the treatment
plant are usually not unbearable; utilities usually anticipate
problems and take preventative
measures; concrete standards, materials
and installation practice are important; the role of water quality in
concrete degradation is poorly understood; free chlorine is
highly corrosive; metallic infrastructure (pumps
and pipes) bear close monitoring; coagulation can change
corrosion in the distribution system; inhibitors used in the
treatment plant must be compatible
with coagulation goals; and, expect the unexpected.