Beach Water Quality Results

Water samples will be collected daily and tested for the presence of E.coli bacteria. When elevated levels of E.coli is detected in the water, it is probable that other disease causing organisms are also present.  These organisms can result in skin, ear, throat or gastro-intestinal illnesses.

Beach water sampling results for: July 22, 2019
Beach Name E.coli Level  Swimming Condition
Mooney's Bay 15   Swim icon
swim
Beach meets provincially established standards for swimming.
Britannia Beach 207  

No swim icon 
no swim

E. coli levels exceed the provincially established safety level of 200. Swim at your own risk.
Westboro Beach 39

 Swim icon
swim

 

Beach meets provincially established standards for swimming

Petrie Island

East Bay

201

 No swim icon 
no swim

E. coli levels exceed the provincially established safety level of 200. Swim at your own risk.

Petrie Island

River Beaches

535

No swim icon 
no swim

E. coli levels exceed the provincially established safety level of 200. Swim at your own risk.

Water test results are not available immediately as they take at least 18 hours to process in the laboratory.  For this reason, no-swim advisories are issued based on water sample results from the previous day and knowledge of water quality at each beach in previous years, and the impact of rainfall and bird activity on water quality.   Ottawa Public Health will issue a no-swimming advisory if:

  • the geometric mean of 5 water samples taken on the previous day is greater than 200 E. coli per 100mL of water; or
  • a single water sample test result from the previous day is greater than 400 E. coli per 100mL ; or
  • there is a significant rainfall event. 

Stay safe around lakes and rivers with these outdoor recreational water safety tips

For more information, call Ottawa Public Health Information at 613-580-6744.

Previous results for 2019

Date Mooney's Bay Britannia Beach Westboro Beach Petrie Island East Bay Petrie Island River Beaches 

July 22

15

swim

207

no swim

73

swim

201

no swim

535

no swim

July 21

15

swim

50

swim

39

swim 

15

swim

24

swim

July 20

 

13

swim

15

swim

18

swim

46

swim

27

swim

July 19

 

14

swim

64

swim

70

swim

68

swim

45

swim

July 18

 

17

swim

32

swim

126

swim

17

swim

44

swim

July 17

 

17

swim

39

swim

69

swim

22

swim

16

swim

 

July 16

 

10

swim

41

swim

41

swim

45

swim

37

swim

July 15

22

swim

193

 swim

43

 swim

98

 swim

92

 swim

July 14

13

swim

168

 swim

51

 swim

58

 swim

462

no swim

July 13

96

swim

789

no swim

441

no swim

18

 swim

137

swim

July 12

23

swim

19

 swim

15

no swim

(rainfall)

20

no swim

(rainfall)

62

no swim

(rainfall)

July 11

17

swim

45

 swim

17

swim

18

swim

51

swim

July 10

46

swim

231

no swim

18

swim

16

swim

46

swim

July 9

27

swim

47

swim

24

swim

13

swim

14

swim

July 8

21

swim

52

swim

39

swim

19

swim

40

swim

July 7

31

swim

12

swim

468

no swim

15

swim

55

swim

 July 6

116

swim

10

no swim

22

no swim

121

swim 

46

swim

July 5

13

swim

17

swim

38

swim

17

swim

25

swim

July 4

12

swim

129

swim

12

swim

10

swim

31

swim

July 3

 17

swim

 12

swim

 54

swim

 12

swim

 18

swim

July 2

 33

swim

 44

swim

 27

swim

 35

swim

 21

swim

July 1

 107

swim

 130

swim

 111

swim

 96

swim

 125

swim

June 30

95

no swim

43

no swim

433

no swim

11

no swim

556

no swim

June 29

18

no swim

18

no swim

65

no swim

15

no swim

40

no swim

June 28

19

swim

25

swim

114

swim

No samples collected

no swim

No samples collected

no swim

June 27

20

swim

20

swim

72

swim

No samples collected

no swim

No samples collected

no swim

June 26

125

swim

18

swim

33

swim

No samples collected

no swim

No samples collected

no swim

June 25

13

swim

15

swim

11

swim

No samples collected

no swim

No samples collected

no swim

June 24

 13

swim

 192

swim

 165

swim

No samples collected

no swim

 

No samples collected

no swim

June 23

 18

swim

 244

no swim

 92

swim

No samples collected

no swim

 

No samples collected

no swim

June 22

33

swim

162

swim

83

swim

No samples collected

no swim

No samples collected

no swim

June 21

32

swim

49

swim

132

swim

No samples collected

no swim

No samples collected

no swim

June 20

 16

swim

 21

swim

 63

swim

No samples collected

no swim

No samples collected

no swim 

June 19

 10

swim

 88

swim

 20

swim

No samples collected

no swim

No samples collected

no swim 

June 18

 16

swim

 18

swim

 16

swim

No samples collected

no swim

No samples collected
no swim 

June 17

19

swim

128

swim

88

swim

No samples collected

no swim

No samples collected
no swim 

June 16

27

swim

80

swim

89

swim

No samples collected

no swim

No samples collected
no swim

June 15

19

swim

15

swim

86

swim

No samples collected

no swim

No samples collected
no swim

The City of Ottawa Open Data keeps Beach water sampling data from previous years. 

 

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