Turbidity Decision Tree Evaluation Report

The Provincial Ombudsman released a report in June 2008 on the investigation into the Province’s regulation of drinking water. This report found that there is inconsistency in how the Regional Health Authorities assess when a Water Quality Advisory is required due to turbidity. The recommendation was to create a standard for issuing turbidity advisories that is consistent across the province. The Turbidity Decision Tree was released in April of 2009 (see below) and this report provides a review of its effectiveness and describes improvements that will be made to the tool.