Well, look at the city of Toronto. Every summer they close some of the
beaches due to high E-Coli count. It is caused by raw sewer dumping from the
GTA and allegedly from bird droppings. I'm not sure what percentage of the
approximately 8 million people in the GTA get their sewer treated as there
are treatment plants, but it's not all.
Actually, this is incorrect. All sewage in the GTA is routed through
treatment plants. However, like many older cities, Toronto traditionally had
a single system for both stormwater catchment (the grates in streets) and
sanitary sewers (the outlets from toilets and sinks). Large rainstorms can
cause the system to overflow and push less-than-fully-treated water into Lake
Ontario.
The solution to this is to separate the stormwater and sanitary systems,
which has been ongoing for about 40 years (it's a big project). One component
of this involved building a 10 million gallon (!!!) underwater reservoir to
hold stormwater.
Scott Welch
FirstClass Product Manager
www.firstclass.com
"Things turn out best for people who make the best of the way things turn
out." - John Wooden
oldtrawlerguy@yahoo.ca writes:
>Well, look at the city of Toronto. Every summer they close some of the
>beaches due to high E-Coli count. It is caused by raw sewer dumping from the
>GTA and allegedly from bird droppings. I'm not sure what percentage of the
>approximately 8 million people in the GTA get their sewer treated as there
>are treatment plants, but it's not all.
Actually, this is incorrect. All sewage in the GTA is routed through
treatment plants. However, like many older cities, Toronto traditionally had
a single system for both stormwater catchment (the grates in streets) and
sanitary sewers (the outlets from toilets and sinks). Large rainstorms can
cause the system to overflow and push less-than-fully-treated water into Lake
Ontario.
The solution to this is to separate the stormwater and sanitary systems,
which has been ongoing for about 40 years (it's a big project). One component
of this involved building a 10 million gallon (!!!) underwater reservoir to
hold stormwater.
Scott Welch
FirstClass Product Manager
www.firstclass.com
"Things turn out best for people who make the best of the way things turn
out." - John Wooden
