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Halton Region takes care to ensure the safety of public water facilities such as pools, spas and splash pads. Find resources and water chemistry requirements for public water facilities.

About the Recreational Water Program

Public Health Inspectors inspect recreational water facilities to ensure your safety. 

There are two categories for public recreational water facilities:

  • Regulated – public pools and spas
  • Non-regulated – public wading pools, splash/spray pads and water slide receiving basins

Water chemistry requirements and resources

Public Pool Operators

public pool
Total alkalinity Not less than 80 mg/L  
pH 7.2 - 7.8  
Chlorine residual (for chlorinated systems) Not less than 0.5 mg/L  
Not less than 1 mg/L where cyanurate stabilization is used    
Bromine residual
(for bromine systems)
Non-wave action pools

Not less than
2 mg/L

Wave action pools Not less than
3 mg/L
 
 

Resources

Public Spa Operators

woman in public pool at spa
Total alkalinity Not less than 80 mg/L
pH 7.2 - 7.8
Chlorine residual
(for chlorinated systems)
5 - 10 mg/L
Bromine residual
(for bromine systems)
5 - 10 mg/L
Cyanuric acid Not greater than 150 mg/L
Oxidation Reduction Potential
(for systems using an automatic sensing device)
Not less than 700mV

Resources

Are you opening a pool or spa?

You must notify the Halton Health Department if you plan on opening a pool or spa.

Or print and submit a notification form:

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