A vineyard operator is challenging an order to look for contamination on its land, six years after a WA parliamentary committee investigated the management of possible contamination on a neighbouring site.
Government agencies are failing to properly identify and manage contamination risks on Western Australia's Crown Land, an investigation by the state's Auditor-General has concluded.
Western Australia's environment department has signalled regulatory changes to ensure a Supreme Court ruling over the payment of waste levies doesn't have unintended consequences.
The Western Australian government will revise contaminated sites guidance and increase air monitoring at locations including Port Hedland and Kalgoorlie, state budget papers show.