Mulch ado about water
REDUCED water volumes for irrigating public spaces and a lack of landscaping were raised by members of the Two Rocks Yanchep Residents Association recently.
City of Wanneroo employees Grant Chettleburgh and Chelsea Timms were guest speakers at the June 25 meeting, providing information about how the City manages public open spaces and road verges.
Responding to residents’ concerns that lawns and garden beds were being replaced with mulch, Mr Chettleburgh said that was to reduce water required for irrigation.
He said the City had licences to use up to 7500kL of ground water a month to water parks in suburbs south of Butler and 6750kL in suburbs farther north.
Mr Chettleburgh said the City focused on irrigating active open spaces, such as ovals, rather than verges and roundabouts, and was allowed to irrigate streetscapes for only two years to allow plants to establish.
“We don’t have enough water to irrigate those areas,” he said.
Mr Chettleburgh said the State Government would continue to reduce the City’s water allocations and the City had a responsibility to look for more effective ways to irrigate open spaces.
“We need to drought proof our City,” he said.
Ms Timms said her team assessed, approved and managed all developer funded public spaces, with most maintained by developers for at least two years as part of their planning approval.
She said all developments had to have at least 10 per cent public open space, with most in the City having between 13 and 15 per cent, and developers were required to install bins in all parks.
The City plants about 3000 trees a year.