Water Quality Index (WQI)
"A means by which water quality data is summarized for reporting to the public in a consistent manner. It is similar to the UV index or an air quality index, and it tells us, in simple terms, what the quality of drinking water is from a drinking water supply." (Municipal Affairs and Environment, Newfoundland and Labrador, Canada, 2019)
Sources
Municipal Affairs and Environment, Newfoundland and Labrador, Canada. 'Drinking water quality index'. Accessed March 3, 2019. Available at: https://www.mae.gov.nl.ca/waterres/quality/drinkingwater/dwqi.html