The title of the graph is "Seasonal variations in E. coli bacteria and temperature in untreated source water, raw surface water, 2005 to 2007
".
This is a line chart.
There are in total 36 categories in the horizontal axis. The primary vertical axis starts at 0 and ends at 12 with ticks every 2 points. The secondary vertical axis starts at 0 and ends at 30 with ticks every 5 points.
There are 3 series in this graph.
The units of the horizontal axis are months by year ranging from January 2005 to December 2007.
The title of series 1 is "Median maximums E. coli".
The vertical axis is "colony forming units (CFU) per 100 mL".
The minimum value is 2 occuring in February 2005, March 2005, February 2006, March 2006, April 2006, February 2007 and March 2007.
The maximum value is 10 occuring in October 2005.
The title of series 2 is "median averages E. coli".
The vertical axis is "colony forming units (CFU) per 100 mL".
The minimum value is 0.5 occuring in February 2007.
The maximum value is 4 occuring in October 2005.
The title of series 3 is "median maximums temperature".
The vertical axis is "oC".
The minimum value is 2.5 occuring in February 2005.
The maximum value is 24 occuring in July 2005.