10/25/1967
https://www.presidency.ucsb.edu...
"I believe that with your help and your continued cooperation, water pollution is doomed in this century."
"I, Lyndon B. Johnson, President of the United States of America, do hereby extend through the year 1966 the period during which all persons are specially invited to see the United States, visit our hi..."
"There is no excuse for communities to use other people's rivers as a dump for their raw sewage."
"There is no excuse for a river flowing red with blood from slaughterhouses."