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2009 in Review
The year 2009 was one of the best years ever for water quality at Petrie Island. This was despite July 2009 seeing the highest rainfall ever recorded for that month. In 2009 the City implemented a new system for monitoring water quality at Petrie Island. The River beach and the East Bay beach were monitored separately, leading to fewer overall closures at Petrie. Previously the readings were lumped into a single number. Most times, the east beach was cleaner than the north beach, perhaps because it had less water circulation. Using the water quality statistics provided by the City of Ottawa, we can compare all four beaches in Ottawa. The graph shows the number of days in which E. Coli counts exceeded 200 per 100 mL, the standard below which the water is considered safe for swimming. The beaches were closed on more days than this, as a precaution due to high rainfall on the previous day. The graph shows the number of days in which both beaches exceeded 200 counts. Petrie Island was second only to Britannia Beach for excellent water quality in 2009.
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