The prevention of contaminants entering the potable water supply is behind a possible Clarence Valley Council policy to have certain businesses install backflow prevention devices.
The prevention of contaminants entering the potable water supply is behind a possible Clarence Valley Council policy to have certain businesses install backflow prevention devices. Emma Gough

Council plan to plug water supply threat

THE Clarence Valley Council wants your opinion on whether businesses that have the potential to contaminate water supplies should have backflow prevention devices installed and inspected annually.

Works and civil director Troy Anderson said such a policy could prevent a disaster.

"The aim of the policy is to prevent contaminants entering the potable water supply," he said.

"The chance of it occurring now is small but we want to reduce that further.

"We estimate there are more than 200 properties in the Clarence Valley that could be assessed as having a high or medium risk.

"Examples of high- or medium-risk properties might include trade waste premises, medical centres and caravan parks."

Mr Anderson said the potential for contamination would only occur if there was a drop in pressure in the main water supply.

He said chemicals, oils or other toxic materials might siphon water back from the site into the main and contaminate the entire supply.

Mr Anderson said although most properties already had backflow prevention devices, the policy would require those assessed as posing a risk to have one installed and for all devices to be tested annually.

The policy will be on public exhibition until 4pm Wednesday, September 24.

Copies of the policy can be accessed at council offices in Grafton and Maclean.

Copies of the policy can also be viewed at www.clarence.nsw.gov.au.



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