Residents in Wheatley and Tilbury are still under a boil water advisory as of Monday morning.
The alert was first issued last Wednesday evening following a fire at the Wheatley Water Treatment Plant and subsequent loss of pressure through the distribution system.
While the South Water Treatment Plant system is helping to feed water to the Wheatley and Tilbury systems through interconnect valves, the Public Utilities Commission is also asking customers served by the South Water Treatment Plant (which includes the communities of Blenheim, Merlin, Coatsworth, Shrewsbury, Rondeau and Erieau) to conserve water until further notice.
A water advisory phone line (519-436-3250) remains active 24-hours a day, seven days a week for updates.