Contaminated Sites

Contaminated sites occur when substances present in or on land or water or when a site can cause potential risk or harm to people or the environment. Contact the Department of Water and Environmental Regulation for enquiries or to report contamination.

 Regulation of contaminated sites

The Contaminated Sites Act 2003 defines 'Contaminated', in relation to land, water or a site, as:

"having a substance present in or on that land, water or site at above background concentrations that presents, or has the potential to present, a risk of harm to human health, the environment or any environmental value."

The Department of Water and Environmental Regulation Manages Contaminated Sites. 

Contaminating activities

Potentially contaminating activities include service stations, landfills, power stations, gasworks and market gardens. Contamination is usually caused by spills or leaks, such as from fuel or chemical storage tanks or poor management practices at industrial premises.

Land owners, occupiers and polluters are required to report known or suspected contaminated sites to the Department of Water and Environmental Regulation. Reported sites are classified in consultation with the Department of Health, based on the risks posed to the community and the environment, and remediation may be required.

More information and contact

Please contact the Department of Water and Environmental Regulation for more information on contaminated sites, including to report a site.



City of Cockburn
Whadjuk Boodja
9 Coleville Crescent,
Spearwood 6163

PO Box 1215, Bibra Lake DC,
Western Australia, 6965

Office opening hours:
8.30am to 4.30pm
Monday to Friday (excluding public holidays)

Language Support

Cockburn Nyungar moort Beeliar boodja-k kaadadjiny. Koora, yeyi, benang baalap nidja boodja-k kaaradjiny.
Ngalak kaadatj dayin boodja, kep wer malayin. Ngalak kaadatj koora koora wer yeyi ngalang birdiya.

City of Cockburn acknowledges the Nyungar people of Beeliar boodja. Long ago, now and in the future they care for country.
We acknowledge a continuing connection to land, waters and culture and pay our respects to the Elders, past, present and emerging.