Clustering of health events in or around industrial facilities sometimes le
ads to worker and community concerns that plant management or local health
professionals must address. We provide an eight-step process to deal with t
hese concerns systematically. We emphasize the use of good scientific pract
ices with managerial oversight for effective worker and community communica
tion. This process is directed to plant management and the local health pro
fessional and emphasizes the practical aspects of the investigation.