Radioactive contaminants from an ancient nuclear waste storage site on the Bruce Nuclear Power Development between Kincardine and Port Elgin have leaked into the underlying aquifer and may have migrated into nearby Inverhuron Provincial Park. Data from one monitoring well show tritium levels at the source of the leak regularly exceed not just the operating limit of 2,035 becquerels per litre (Bq/L) imposed by the Canadian Nuclear Safety Commission, but also Ontario's more generous drinking-water objective of 7,000 Bq/L.