Perth

This line item refers to the total water abstracted from Helena River (Mundaring Reservoir) for water supply to the Goldfields and Agricultural region, located outside the Perth region boundary.

Data source

Water Corporation: Operational Data Storage System.

Data provider

Water Corporation.

Method

The volume of water diverted from Helena River (Mundaring Reservoir) for water supply to the Goldfields and Agricultural region is measured at the flow meter at Mundaring Reservoir on an almost continuous basis.

Uncertainty

Expected error for water meters is +/- 5%.

The Department of Water requires that all water meters, when tested in situ conditions, must be within 5% accuracy across the full flow rate range (Department of Water 2009).

Approximations, assumptions, caveats/limitations

Nil.