A rogue bore which exploded in the city recently has been killed, the council says.
The abandoned bore in the service lane between Amohau and Eruera streets sprang to life this month, spraying water and steam 15m into the air.
A sudden air pressure change, coupled with ground movement over time that loosened the ground around the bore, caused the explosion, said Garry Brown, general manager of Rotorua Well Drilling.
"The bore was 94 metres down into the ground but was a relatively low pressure bore.
"We've dealt with a few of these over the years. It's nothing new for Rotorua - but this one was pretty stubborn."