Water storage in our dams
| Related information | |
|---|---|
 | Thinking 50 website - 50 year plan to deliver sustainable water services |
| | Statewide dam storage levels |
| | Rainfall at Perth dams |
 | Streamflow for major surface water sources |
| | Reduced inflows to 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 |
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| 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.
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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
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