The Charlottetown sewer system is in some serious need of upgrading, as once again the harbor has been closed to shellfish harvesting. The city is blaming heavy rains which overwhelm the system and cause overflow to be released directly into the harbor. I don't think that a normal day of rain should cause this, but apparently it is. I believe it is a good idea that CFIA does this monitoring and close areas when necessary. Hopefully, this will encourage Charlottetown to update the sewer system.

From CBC:
A sewage overflow this week into the Charlottetown Harbour again closed sections of the West and North rivers popular for shellfishing.

The season for fishing quahog, a type of clam, opened last week on Prince Edward Island, but a two-kilometre section of West River has been off limits most of the summer.

That has left quahog fishermen scrambling to find alternate locations to catch the mollusks.

"The No. 1 priority is food safety," said John White of the Canadian Food Inspection Agency. "We want to make sure that whatever shellfish is being harvested is not going to make anyone ill."

Sewage stops shellfishing again
http://www.cbc.ca/canada/prince-edward-island/story/2010/07/23/pe-shellf...