The cities of Dorval and Dollard-Des Ormeaux, as well as the borough of Saint-Laurent, are no longer under a boil-water advisory, the City of Montreal said Tuesday. The advisory was issued Sunday after a water main break. More than 200 households were affected. “Montreal has obtained confirmation that all regulatory standards pertaining to drinking water are met. It is therefore no longer necessary to boil water before consuming it in the above-mentioned areas,” the city said. Officials say residents should take the following precautions: