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Water Tests

Weekly Bacteriological Test

The Public Pool Regulations state:

• At least one bacteriological sample of the pool water a week must be submitted to a water testing laboratory for examination.

• A bacteriological sample must be collected in an approved bottle from below the water surface near an outlet, while the pool is in use.

• When you submit pool tests to the lab, you will receive tests results back within a few days (they are usually sent to the Health Centre)

• The coliform count in the pool water must not exceed two colonies for each 100 ml when the Standard Membrane Filter Technique is used.

• If there is a problem with the results of your tests, the Environmental Health Officer will usually contact you; nevertheless, it is important to always look at the test results to ensure that the values are within the allowable ranges

Daily Testing

The Public Pool Regulations state:

• Tests must be taken each day of pool operation at least once every four hours

• Test ranges should be as follows:



Total alkalinity

80 to 200 mg/l		80 to 120 mg/l

Calcium hardness

100 to 200 mg/l	150 to 200 mg/l

pH (pool)

7.2 to 7.8	7.6

pH (hot tub)

7.2 to 7.6	7.4 to 7.6

Free available chlorine (pool)

1.0 – 1.5 mg/l	1.2 mg/l

Total residual chlorine (pool)

not greater than 2.5 mg/l	

Free available chlorine (hot tub)

5 to 10 mg/l	

Temperature (pool)

26°C - 30°C.	

Temperature (hot tub)

No greater than 40oC	
water_testing.1351223420.txt.gz · Last modified: 2013/02/26 14:09 (external edit)