In 2017, the Ministry of Environment, Conservation, and Parks collected water and sediment from the Jackfish Bay ‘Area of Concern in Recovery’ study area, which included Moberley Bay, Tunnel Bay, and far-field sites in Jackfish Bay. This ‘Area of Concern in Recovery’ has been designated under Annex 5 (Areas of Concern) of the Canada-Ontario Agreement for Great Lakes Water Quality and Ecosystem Health. Information provided in the dataset includes: sample collection, location and field observations; laboratory sample information and results for both water and sediment chemistry.