IW has almost 1,200 individual water abstractions which were commenced over a long period of time, often predating modern environmental legislation.
Approximately 280 of these are surface water abstractions, supplying 80% of public water supply by volume, with the remaining abstractions being groundwater or springs.
The abstractions feed into 535 individual water supplies, historically spread across thirty-two (32) local authority jurisdictions and over 60,000 kilometres of distribution network.