This ‘70s clip shows part of the process involved in protecting the environment from pollution, using the specific case of polluted water. 

Begins with waste shown in rivers and streams. A man in a laboratory is engaged in testing - perhaps testing samples taken from rivers and streams. 

In a boardroom located at the Robert S. Kerr Environmental Research Laboratory in Ada, Oklahoma, Lynn Schuller talks to a small group of people about the coordinated efforts of both universities and federal agencies to identify the wastes found in the above mentioned rivers and streams.