Water Supply

For detailed advice on preparedness and response actions for water supply managers, see poster on Volcanic ashfall: advice for water supply managers.

For roof catchment rainwater systems, we advise disconnecting the downpipe from the roof to the tank prior to the ashfall. Tank water contaminated with ash is unlikely to be a health hazard, but will probably have an unpleasant metallic taste, so it may be necessary to empty, clean and refill the tank.

General disaster preparedness for households should include the storage of at least three days' supply of clean drinking water.