Weekly water update

Data for week ending 27 November 2014
Last update at 3:00 PM 27 November 2014

Dam storage levels

78.7%

1425.7 billion litres this week

-0.3%

Less than week ending 20 November 2014

Avg. catchment rainfall

20.9 mm

This week

-13.4mm

Less than week ending 20 November 2014

Flow into dams

4,728 ML

This week

-1389ML

Less than week ending 20 November 2014

Water use

170 L

Daily avg. per person this week

-10L

Less than week ending 20 November 2014

Rain returns to soften storage slide

Melbourne’s water storages decreased by 0.3% of capacity this week, or 5.7 billion litres.

Rainfall returned to average weekly levels, though dry soils from past weeks hampered runoff into the reservoirs.

The four major catchments received between 12.4 to 29.8 mm of rain, the average being 20.9 mm.

This was 3.6 % above the long- term average for the period of 20.1 mm.

However, a lot of the rain seeped into the dry catchments before it could be converted to runoff.

The 4.7 billion litres of stream flow that ran into reservoirs was half of the 30-year average for the period (9.3 billion litres).

Water storages are now 78.7% (1,425.7 billion litres) full, compared with 80.9% (1,466.7 billion litres) at the same time last year – a difference of 41.0 billion litres.

Melburnians used an average of 170 litres of water per person per day.

This is 10 litres per person per day less than the previous week.

Information on water use rules and tips on how to save water are available from water.vic.gov.au or by contacting the government water retailers. Permanent water use rules are currently in place.

Dam storage levels

Hide details [-]

78.7% full at 27 November 2014

1,425,708 ML
Reservoir Total capacity (ML) Current volume (ML) % Full Rainfall recorded (mm)
Thomson 1,068,000 865,579
-7,519 since last week
81.0% 12.4 (verified)
View hourly unverified
Cardinia 286,911 185,125
+1,379 since last week
64.5% N/A
View hourly unverified
Upper Yarra 200,579 147,344
+2,965 since last week
73.5% 29.8 (verified)
View hourly unverified
Sugarloaf 96,253 91,567
-42 since last week
95.1% N/A
View hourly unverified
Silvan 40,445 32,904
-1,851 since last week
81.4% N/A
View hourly unverified
Tarago 37,580 37,781
-72 since last week
100.0% N/A
View hourly unverified
Yan Yean 30,266 27,568
-62 since last week
91.1% N/A
View hourly unverified
Greenvale 26,839 17,684
+14 since last week
65.9% N/A
View hourly unverified
Maroondah 22,179 17,613
-339 since last week
79.4% 26.8 (verified)
View hourly unverified
O'Shannassy 3,123 2,543
+269 since last week
81.4% 25 (verified)
View hourly unverified
Total 1,812,175 1,425,708
-5,258 since last week
78.7% N/A

Download this data (.CSV)

Dam storage levels includes all of Melbourne's water storage areas that receive water from catchments and the desalination plant.

Storages

Monthly average storage levels of Melbourne's reservoirs over the years. Data is updated at the end of each month. View our interactive storage graph, displaying data from 1940 - present.

Rainfall at dams

Show details [+]
Catchment This week (mm) This week's long term average (ML) based on mean from previous 30 years Variation
(to the average)
Same time last year
Thomson 12.4 19.9 -37.7% 20.0mm
Upper Yarra 29.8 19.1 56.0% 8.6mm
O'Shannassy 25.0 21.4 16.8% 9.6mm
Maroondah 26.8 23.2 15.5% 18.8mm

Download this data (.CSV)

Rainfall data is a weighted average catchment figure that is validated and provided for four major catchments only.

Flow into dams

Show details [+]
Catchment This week (ML) This week's long term average (ML) based on mean from previous 30 years Variation
(to the average)
Same time last year (ML)
Thomson 1,805 3,680 -51.0% 3,673
Upper Yarra 717 2,250 -68.1% 2,636
O'Shannassy 1,111 1,840 -39.6% 1,691
Maroondah 1,095 1,570 -30.3% 1,669
Total 4,728 9,340 49.4% 9,669

Download this data (.CSV)

Flow into dams is a total of water flowing from our four major catchments into reservoirs.

Water use for Melbourne

Show details [+]
Daily water use This week's daily average (L) Last week's daily average (L)
Per Person Water Use 170 180

Download this data (.CSV)

Water use shows Melbourne's total usage each day and includes Western Water. The total amount used by all Melbournians -both business and households.

All figures include non-metropolitan supply for Western Water (supplied since March 2000), which are not included in annual Melbourne metropolitan consumption figures.

Copyright Melbourne Water