translate English to French: These treatment facilities, located in various regions of Canada, were chosen on the basis of 1980 records and dollar values.
Ces usines, situÃ©es dans diffÃ©rentes rÃ©gions du Canada, ont Ã©tÃ© choisies Ã partir des dossiers Ã©tablis en 1980 et en prenant comme base le dollar de 1980.