Attendees enjoyed the presentation by Steve Holysh and Rick Gerber of the Oak Ridges Moraine Coalition. They presented work being done for the Region’s unique groundwater management program. Rapid growth and expansion on the Moraine triggered the program into action about 20 years ago, to more fully understand the extent, quality and movement of the groundwater resource.

Steve began the presentation with a look at where and what types of data are collected as part of the program. Water levels from wells across the region have been collected, many from the Ontario Ministry of Environment and Conservation Authority network, as well as their own network.

Hydrogeological field tests are performed to estimate groundwater parameters, and groundwater samples collected and tested for chemistry. Geological data is also an imperative part of the program; historical maps, outcrop studies, and drill records provide insight into subsurface features such as tunnel channels.

Rick continued the presentation with a discussion of how these integrated data sets are incorporated into numerical and site conceptual models, and how they are used to test estimates of hydrogeological parameters. As more data is added to these models, the more representative they become, allowing better management decisions to be made. Overall, their presentation stressed the importance of collecting and organizing detailed data sets, and sharing the information.

For more information about the work Steve & Rick are involved with, visit http://www.ypdt-camc.ca/

ABOUT THE SPEAKERS -

Steve Holysh, M.Sc., of the Oak Ridges Moraine Groundwater Management Program is primarily focused on the York Peel Durham Toronto groundwater program.

Rick Gerber, Ph.D., P.Geo. of the Oak Ridges Moraine Groundwater Management Program is a Senior Hydrogeologist with the program.