The hundreds of jobs to go from Western Australia's Water Corporation reflect the high human cost of the Barnett government's post-mining boom mismanagement, the opposition says.
The state-owned company will would cut 10 per cent of its workforce over the next eight months, with about 300 full-time jobs to go.
Chief Executive Sue Murphy said the decision followed an organisation-wide review as the company transitions from capital investment to operations and maintenance.
But Labor opposition spokesman for water Dave Kelly said this was an excuse that flew in the face of the company's five-year plan released by the minister in parliament last August.
The plan called for it to be given more resources in coming years to maintain its infrastructure.
"It looks to everybody that these 300 jobs that are going are really about budget cuts rather than a well thought out business plan for the Water Corporation," Mr Kelly said on Tuesday.
"The constant stream of job losses that we're seeing at the moment in the WA economy really reflects badly on the way the government has managed the post-mining sector boom."
The first round of Water Corp redundancies will be announced over the next few weeks.
JOBS SHEDDING IN WA
* 300 full-time positions Water Corporation
* 200 jobs oil giant BP's Kwinana refinery, about half of staff
* 70 mining jobs junior iron ore producer Karara Mining
* Rio Tinto sheds hundreds of jobs in Pilbara
* Atlas Iron suspends operations, threatening trucking contractor McAleese
* Mining services firm Ausdrill cuts jobs
* Fortescue Metals restructures rosters, job cuts flagged