Stormwater can be defined as the water run-off. The Council maintains more than 4,000km of stormwater pipes in the city area.

Invercargill and Bluff have urban stormwater systems which lie beneath the roads; Omaui and in parts of Otatara the stormwater enters the piped sewage network. At Makarewa, Myross Bush and other parts of Otatara properties are served predominately by a system of ditches for stormwater.

When it is not possible for a property to be connected to a public drain to discharge stormwater, the property owner may apply to the Council for consent to install their own channel connections.