HELENA Valley campaigners are calling on the community to send their ‘save our lake’ submissions to the Shire of Mundaring before Friday.
Organiser Sue McCann of Carabeen Avenue said the Shire has refused to extend the deadline to December 14.
She encouraged residents to ask for more information about contamination of land close to the housing proposal.
The blocks are 20 metres from a former landfill site.
Mrs McCann said uncontrolled use in the past has led to dumping of contaminants.
For more on the campaign, visit here.