How do the test results compare to normal levels of tritium in drinking water in Durham Region?
The 2008 annual average tritium concentrations at the Bowmanville, Oshawa and Newcastle water supply plants ranged from 6.4 to 9.2 Bq/l. The weekly averages throughout 2008 sometimes ranged slightly above or below this annual average. The Ontario regulatory limit is an annual average of 7,000 Bq/l. OPGs nuclear plants maintain annual averages that are consistently far lower than any regulatory limit worldwide, including Ontarios.
