Alberta Health Services (AHS) has clarified which areas in Rocky View County are impacted by a boil water advisory issued late on Friday night. The order continues to remain in effect until further notice. 

According to AHS, Salt Box Coulee Waterworks System serves communities of Rocky View County, which includes residential homes of Calling Horse Estates Co-operative Association Ltd. (CHECAL); Windmill; and Deer Springs Close (Deer Springs). 

"Approximately 69 homes are impacted by this order," an AHS spokesperson confirmed to DiscoverAirdrie. 

This boil water advisory does not impact Airdrie, as the city's water is purchased from the City of Calgary. 

On Friday evening, AHS posted the boil water advisory, stating that it was due to an issue with the Salt Box Coulee Waterworks System and several Rocky View County water systems which draw water from it. These water systems include:

  • Salt Box Coulee Waterworks System
  • Calling Horse Estates Waterworks System
  • Windmill Water Coop Waterworks
  • Deer Springs

All residents and businesses supplied by these systems are advised to bring water to a rolling boil for at least one minute before any consumption, including:

  • drinking
  • brushing teeth
  • cleaning raw foods
  • preparing infant formula or juices
  • making ice, etc.

Water used for bathing or washing clothes does not need to be boiled. For hand-washing, wash with soap and water and use an alcohol-based hand sanitizer containing more than 60 per cent alcohol after drying your hands. 

Residents may instead choose to purchase bottled water for consumption, for the duration of this advisory. AHS added that corrective action is taking place to address this matter and restore appropriate water supply.

According to the documents found on AHS's website on the Calgary Zone Health Enforcement Orders page, the Salt Box Coulee Waterworks System, Calling Horse Estates Waterworks System, as well as the Windmill Water Coop Waterworks all had water testing conducted on April 16. 

"Alberta Environment and Parks through onsite water testing conducted... reported the drinking water supply did not provide an adequate minimum free chlorine disinfection residual in the water treatment plant treated water," the documents stated.

It is also stated that the water treatment plant operator for the above-mentioned systems was not available, 'to address urgent deficient operational conditions at the water treatment plant that supplies water to the distribution system.'

AHS Environmental Public Health officers will continue monitoring the situation, including sampling and testing the drinking water to ensure it is safe for consumption.

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