The earthquake – damaged below ground suction tank at Jeffreys Pump Station needs to be replaced as soon as possible, so that all four deep wells on site can be connected. This will ensure security and resilience for the Northwest water supply network. The existing 200 cubic metre suction tank is not in use, and only two wells are directly connected to the water supply. At the moment water is supplied from other wells in the network when there is high demand in the area.
When all the four wells are connected, Jeffreys Pump Station will exceed pre-earthquake supply capacity and meet design standards for at least 500 cubic metres per hour with a one hour buffer capacity.
This will ensure water quality at all times including peak demand, including the ability to treat the water in an emergency if needed. A stand-by diesel generator supports the pump station during emergency power failure.