PERTH’s dams have swelled to their highest levels in almost a decade after a return to relatively average rainfall over the past two winters.

The Water Corporation said yesterday that almost 100 billion litres of run-off had flowed into Perth’s network of reservoirs between June and last month — just shy of the post-1975 average of 107 billion litres.

It comes after one of the city’s wettest winters in years during which 467.4mm of rain fell, almost in line with the historical average of 473.7mm.

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