¶ THE Mineworkers’ Memorial Pool remains shut as investigations continue into a chlorine gas leak believed to be the first of its kind in the state.
Agencies including WorkSafe and the Department of Fire and Emergency Services (DFES) have been investigating the incident that led to the hospitalisation of a staff member and the closure of a section of Throssell Street.
Fire and Rescue Service crews were dispatched to the pool after multiple triple zero calls were received before 7pm on March 16. 
A specialist team was subsequently flown by helicopter from Perth to deal with the incident, which was contained and brought under control at 3am the following day.
Collie Shire staff have been working with WorkSafe and DFES to identify the cause of the leak.
Shire chief executive officer Phil Anastasakis told the Bulletin the room housing the chlorine cylinder has been isolated.
“Until we receive the all-clear on the room and its contents, we will be unable to reopen the pool,” he said.
“We know this is inconvenient for pool users, but we have to be careful to ensure that the welfare of pool users, staff and the community in general is protected.”
A WorkSafe spokesperson confirmed the hospitalised staff member will assist with the investigation.
“That will be done when the person is well enough,” the spokesperson said.
“At this very early stage, we have no indication of how long the investigation will take.”
The pool will be reopened as soon as possible, but no “short-cuts” would be taken, Mr Anastasakis said.
“No doubt, the investigations currently taking place will help pool operators across the state to instigate updated pool management procedures,” he added.