Draft Canadian Groundwater Quality Guidelines for the Protection of Environmental and Human Health for 101 contaminants of concern are available for public review and comment until January 10, 2020.
Groundwater quality guidelines are developed to maintain specific uses of groundwater and to protect receptors in environments that may directly or indirectly come into contact with contaminated groundwater due to contaminant migration. These guidelines are not intended to protect organisms living in aquifers, but rather to protect the uses of groundwater or downgradient receptors. Groundwater quality guidelines are primarily derived by using existing benchmarks and back-calculating a groundwater concentration, using fate and transport models, that will not result in an exceedance of the benchmark once the contaminant reaches the environment of concern.
In addition to reviewing and providing comments on the technical and scientific content of this document, please respond to the following questions:
Please submit comments to:
Canadian Council of Ministers of the Environment
360 - 123 Main Street
Winnipeg, MB R3C 1A3