The audit by the WA Auditor General into the Department of Water and Environmental Regulation (DWER) found the department did not adequately track or manage cases, with 771 sites assigned to staff who had left at the time of the audit. Of those, 110 possibly contaminated sites were deemed high priority, while the department also manages more than 1,500 cases of known contamination.
More than 1,200 of 1,633 possibly contaminated sites had been awaiting additional assessment information for more than five years with limited follow-up, according to the report.
Acting Auditor General Aloha Morrissey said DWER was not doing enough to obtain this information and progress sites needing further assessment. “For many sites, it is taking DWER years to assess contamination levels as DWER is not maintaining contact with responsible parties,” she said.
The audit highlighted a formal report from 2013 on public land close to homes, recreational areas and the Swan River. The pollution watch hotline had also received a call about an oil spill at the same location. The site was assigned a high-priority rating, with heavy metals, hydrocarbons and hazardous chemicals from poor industrial and waste practices suspected.
“DWER has not contacted the private operator that leases the land nor any other responsible parties and has never received any updates,” the audit reads. “The staff member currently assigned to this case is no longer employed by DWER. As a result, the level of risk for this site remains uncertain.”