Sewer Sociology

September 11, 2001 is a defining moment in U.S. history, and its memories and emotions echo through the words of the 9/11 Commission:

Sewers are an important part of our society.

Certain religious practices can also be observed in sewer use patterns.

Millions of people were left without power on August 14, 2003 at 4:09 PM when the largest blackout in the history of North America occurred.

Certain religious practices can also be observed in sewer use patterns. This composite hydrograph shows normal dry weather flow patterns from a flow monitor located in a region with a prominent Orthodox Jewish population.

Holidays are welcomed diversions from everyday life and provide time to celebrate and relax with family and friends. These diversions are reflected in sewer use patterns, as shown below.