Officials with the GNWT now say tests that showed unsafe concentrations of lead in two Yellowknife area schools were done properly and no water quality experts were consulted with the findings, putting the initial scare in question.
An update was released by the GNWT May 31.
"Over the past few days, additional resources have been mobilized and expert support engaged to better understand the situation," reads the unattributed press release. "While a comprehensive investigation is still underway, the GNWT believes it is important to share what is currently known so families, school staff, and the broader public have the facts and a clear understanding of next steps.
"The GNWT is re-testing all school water sources where elevated lead levels were previously reported, using best practices and appropriate methodology. Results will be shared as soon as they are receivedSA国际影视传媒攆irst with schools and families, and then with the public. A full review of how this situation unfolded is also underway, with the goal of ensuring confidence in this pilot project and strengthening future efforts."
Findings from the GNWT's initial investigation found the initial tests of water samples were not done to standards for national best practices. Furthermore, the press release notes that no in-house expertise was consulted, not even the GNWT's on-staff water quality experts, nor was third party expertise sought.
"As a result, the validity of the initial test results SA国际影视传媒� particularly where elevated lead levels were reported SA国际影视传媒� is now in question," states the press release. "Although the original intent was to complete testing quickly with available resources, the lack of expert involvement compromised the reliability of both the process and the results.
"It is important to reiterate that all drinking water provided to NWT residents is regularly treated and tested to ensure it meets Canadian drinking water standards. The GNWT acknowledges the concern this situation has caused. While the original intent of this project was to help confirm the safety of school drinking water, the issues identified in the testing process are now enabling clearer steps to ensure water quality and, if necessary, corrective action."
Education, Culture and Employment Minister Caitlin Cleveland has initiated a third party review of the pilot program. She made that announcement on May 29, three days after a water sample test showed concentrations of lead of 0.009 milligrams per litre SA国际影视传媒� nearly double the 0.005 mg/L maximum safe concentration recommended by Health Canada SA国际影视传媒� were found at both William McDonald Middle School and Range Lake North School.
Large volumes of lead over a long time can result in reduced cognition, increased blood pressure and renal dysfunction in adults, as well as adverse neurodevelopmental and behavioural effects in children.
