Water storage in our dams

Surface water from our dams contributes 25 - 45% of the water for the Integrated Water Supply System (IWSS).  Our other two water sources are groundwater, which contributes 35 - 50%, and desalination which contributes 15 - 20%.

Information on our water storages is updated Monday - Friday by around 11am. Due to varying circumstances figures may occasionally be delayed.

Water Storage in Our Dams on Friday, 03 February 2012
 
Current Storage: 197.20 gigalitres (GL)
Total Capacity: 605 GL
Percentage of Total Capacity: 32.6 %
Available Surface Water: 87.2 GL
Date 28 Jan 29 Jan 30 Jan 31 Jan 01 Feb 02 Feb 03 Feb
Last Year (GL) 179.42 179.06 178.70 178.43 178.03 177.64 177.33
This Year (GL) 200.34 199.99 199.41 198.60 198.24 197.67 197.20
Difference (GL) +20.92 +20.94 +20.70 +20.17 +20.21 +20.03 +19.87

The graph below shows the total volume of water stored in the dams supplying water to the Integrated Water Supply System. These dams include Canning, Serpentine, Serpentine Pipehead, Victoria, Mundaring Weir, South Dandulup, North Dandalup, Wungong, Stirling and Churchman's Brook. Mundaring Weir normally only supplies water to the Goldfields and Agricultural regions.

Chart.

Friday, 03 February 2012
Available Surface Water 87.20 GL

The first 110GL of stored water is normally unavailable for immediate use.
(A larger version of the above graph is available here)


Current Water Storage in Our Main Dams

Chart.
Chart.