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revised November 07, 2017

Environmental Health

Water

Swimming and Water Recreation

Resources for operators

Pool operators

Required pool water chemistry readings:

Total alkalinity Not less than 80 milligrams per litre
pH Between 7.2 and 7.8
Chlorine residual (if used) Not less than 0.5 milligrams per litre
Cyanuric acid (where cyanurate stabilization is maintained) Not greater than 60 milligrams per litre

NOTE: where cyanurate stabilization is maintained, the chlorine residual must be not less than 1 milligram per litre

Bromine residual (if used)
Pool not in wave action
Pool in wave action
Not less than 2 milligrams per litre
Not less than 3 milligrams per litre

Spa operators

Required spa water chemistry readings:

Total alkalinity Not less than 80 milligrams per litre
pH Between 7.2 and 7.8
Chlorine residual (if used) Between 5 and 10 milligrams
Bromine residual (if used) Between 5 and 10 milligrams
Cyanuric acid (where cyanurate stabilization is maintained) Not greater than 150 milligrams per litre
Oxidation Reduction Potential(if automatic sensing device is used) 700 mV

Splash pad and wading pool operators


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Revised: November 07, 2017

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