The Office of the Chief Public Health Officer (CPHO) has lifted the Health Orders previously in place at École William McDonald Middle School and N.J. Macpherson School, following confirmation that lead levels in drinking water no longer exceed Health Canada guidelines.
Newsroom
Yellowknife –
January 28, 2026
Public Service Announcement
Yellowknife –
December 19, 2025
Public Service Announcement
The Government of the Northwest Territories (GNWT) has received lead testing results for Princess Alexandra School, Diamond Jenness Secondary School, and the Diamond Jenness Trades Centre in Hay River.
Princess Alexandra School
Backgrounder:
Yellowknife –
December 18, 2025
Public Service Announcement
The Government of the Northwest Territories (GNWT) has received lead testing results for École Boréale School in Hay River, Chief Sunrise School in Kátł’odeeche First Nation, and Deninu School in Fort Resolution.
École Boréale School in Hay River
Backgrounder:
Yellowknife –
December 16, 2025
Public Service Announcement
The Government of the Northwest Territories (GNWT) has received lead testing results for Harry Camsell School in Hay River.
Backgrounder:
Yellowknife –
December 12, 2025
Public Service Announcement
The Government of the Northwest Territories (GNWT) has received lead testing results for Helen Kalvak School in Ulukhaktok.
Yellowknife –
December 5, 2025
Public Service Announcement
The Government of the Northwest Territories (GNWT) has received lead testing results for Mildred Hall School in Yellowknife.
Yellowknife –
November 25, 2025
Public Service Announcement
The Government of the Northwest Territories (GNWT) has received lead testing results for Kaw Tay Whee School in Dettah. Testing has confirmed that some water fixtures show lead levels above the maximum acceptable concentration (MAC) set out in the Guidelines for Canadian Drinking Water Quality.
Backgrounder:
Yellowknife –
September 16, 2025
Public Service Announcement
The Office of the Chief Public Health Officer (CPHO) has lifted the Health Order previously in place at Range Lake North School, following confirmation that lead levels in drinking water no longer exceed Health Canada guidelines.
Yellowknife –
August 26, 2025
Public Service Announcement
As the new school year begins, the Government of the Northwest Territories (GNWT) is providing an update on drinking water safety at three Yellowknife Education District No. 1 schools: École William McDonald Middle School, Range Lake North School and N.J. Macpherson School.
Yellowknife –
August 23, 2025
Public Service Announcement
The Government of the Northwest Territories (GNWT) has received follow-up testing results confirming elevated lead levels in the drinking water at N.J. Macpherson School.
Backgrounder: