Regulations such as the Safe Drinking Water Act, the
Clean Water Act, and the Endangered Species Act pose
significant challenges for water utilities. Protecting the
public health and environment means adjusting practices
to limit contaminants, often detectable at levels
beyond our understanding of environmental risk. This
process can be costly and complex. Utilities must take
steps, such as anticipating regulations and taking part
in the legislative and regulatory process, to manage
these challenges now and in the future. This article is
the fifth in a six-part series on trends and their implications
for water utilities. It discusses present and future
regulations, what they mean for water utilities, and
potential management strategies to address them. Includes 13 references, figures.