The Campbell-based West Valley Clean Water Authority, along with several other local agencies, is hosting an Earth Day poster design challenge, open to all K-12 students in Santa Clara County.

Learn more. LEWISTON — The Maine Water Environment Association recently sponsored a poster competition for Maine students to celebrate its 50th anniversary and 2016 Maine Clean Water Week.

And by 1972, what we know as the Clean Water Act became law. Here's Ohio EPA's Kurt Princic. KURT PRINCIC: The objective of the Clean Water Act is to maintain and restore the integrity of the ...