https://en.wikipedia.org/wiki/CFB_Gagetown
Home of Agent Orange.
>Portions of the training area were subject to testing of the defoliants Agent Orange and Agent Purple during the 1960s, which has led to an inquiry as to its long-term effects upon the soldiers and civilian base personnel who were exposed to it. The affected areas had soil tests that measured dioxin levels at 143 times the Canadian Council of Ministers of the Environment guidelines for maximum exposure.