Water Resources

Coliban System (Southern) data is updated Monday to Friday. The Lake Eppalock (Coliban Water share) data is updated every Tuesday.

Last updated: Thursday, 23 March 2017

 

Summary

Below is a summary of rainfall, inflows and storage volumes for our Coliban System (Southern) three major catchment storage. Rainfall is recorded at Malmsbury Reservoir.

 

To Rainfall Inflow Volume
Day YTD* Day YTD*
millimetres millimetres megalitres megalitres megalitres % full
This morning 0.0 652.0 63 95,643 55,792 80.2%
Yesterday morning 10.0 652.0 61 95,614 55,898 80.3%
 
This time last year** 53% 304.0 93.9% 5,818 31,706 45.6%
Last 20 year median** 26% 485.0 71.8% 26,925 43.2%

 

* Year To Date since 1 July 2016
**Percentages are current against same time last year / last 20 year median


Our storage volumes

Below is a summary of storage levels and rainfall for our three major catchment storages near Kyneton. These storages are required to supply the townships and areas of Castlemaine and Kyneton, and to supplement supply to Bendigo.

 

Storage Capacity at full supply Current volume Volume same time last year
megalitres
megalitres
% full
megalitres
% full
Upper Coliban 37,770 34,382 91% 15,514 41.1%
Lauriston 19,790 18,990 96% 13,280 67.1%
Malmsbury 12,034 2,420 20.1% 2,819 23.4%
TOTAL 69,594 55,792 80.2% 31,613 45.4%

 

Below is a summary of the storage level and rainfall for our share of Lake Eppalock. We have an 18% capacity share of total volume and inflows.

 

Storage Capacity at full supply Current volume Volume same time last year
megalitres
megalitres
% full
megalitres
% full
Lake Eppalock
- Coliban Share
54,837 51,537 94% 20,276 37%

 

 

Last 10 days - storage volume

Below is a 10 day summary of storage levels for our three major catchment storages near Kyneton. These storages are required to supply the townships and areas of Castlemaine and Kyneton, and to supplement supply to Bendigo.

 

Date Current volume Volume change
megalitres % full megalitres % full
Tuesday, 14 March 2017 56,890 81.7% -131 -0.2%
Wednesday, 15 March 2017 56,763 81.6% -127 -0.2%
Thursday, 16 March 2017 56,547 81.3% -216 -0.3%
Friday, 17 March 2017 56,407 81.1% -140 -0.2%
Saturday, 18 March 2017 56,268 80.9% -139 -0.2%
Sunday, 19 March 2017 56,141 80.7% -127 -0.2%
Monday, 20 March 2017 56,007 80.5% -134 -0.2%
Tuesday, 21 March 2017 55,985 80.4% -22 0%
Wednesday, 22 March 2017 55,898 80.3% -87 -0.1%
Thursday, 23 March 2017 55,792 80.2% -106 -0.2%
10 day total -1,229 -1.8%

 

 

Last 10 days - rainfall and inflows

Below is a 10 day summary of rainfall and inflows for our three major catchment storages near Kyneton.

 

Date Malmsbury
rainfall
(mm)
Inflow from water balance calculation
Inflow Year to date Inflow *
megalitres megalitres
Tuesday, 14 March 2017 0.0 17 95,428
Wednesday, 15 March 2017 0.0 12 95,456
Thursday, 16 March 2017 2.0 0 95,401
Friday, 17 March 2017 1.0 0 95,406
Saturday, 18 March 2017 0.0 0 95,417
Sunday, 19 March 2017 0.0 10 95,432
Monday, 20 March 2017 0.0 15 95,453
Tuesday, 21 March 2017 9.0 53 95,576
Wednesday, 22 March 2017 10.0 61 95,614
Thursday, 23 March 2017 0.0 63 95,643
10 Day Total 22.0 232

* Since 1 July 2016

 

Last 10 days - Lauriston and Malmsbury releases (Coliban Main Channel and Coliban River)

Below is a 10 day summary of discharges from Lauriston Reservoir and Malmsbury Reservoir to the Coliban River and Coliban Main Channel. Discharges from Lauriston Reservoir flow downstream and are recaptured in Malmsbury Reservoir. Coliban River discharges may be passing flows as required under our Bulk Entitlement, Environmental Reserve Discharges (as directed by the North Central Catchment Management Authority) or reservoir spills. Coliban Main Channel discharges are to supply Castlemaine, Coliban Rural System (Southern) and supplement supply to Coliban System Northern (Bendigo).

 

Date Lauriston Reservoir Malmsbury Reservoir
Main Channel
Coliban River*
Total**
(ML/day) (ML/day)
(ML/day)
(ML/day)
Tuesday, 14 March 2017 27 110 5 115
Wednesday, 15 March 2017 27 116 5 121
Thursday, 16 March 2017 27 113 4 117
Friday, 17 March 2017 28 113 4 117
Saturday, 18 March 2017 27 116 4 120
Sunday, 19 March 2017 27 116 4 120
Monday, 20 March 2017 27 116 4 120
Tuesday, 21 March 2017 27 116 4 120
Wednesday, 22 March 2017 27 113 4 117
Thursday, 23 March 2017 28 107 4 112
10 day total 269 1,136 44 1,180
Year to date 41,451 14,142 51,192 65,334

 

* Includes spills, environmental releases, passing flows and other operationally required discharges.

** Total Malmsbury Reservoir release only (Main Channel and Coliban River)

 

> Catchment storages and holding basin information from the Bureau of Meteorology website


The Bureau of Meteorology (BOM) website has archive volume information on some of our storages and holding basins dating back to 2011. The information is updated every Friday. Click on the links below to visit the BOM website.

Barkers Creek
Lauriston

Malmsbury
McCay
Sandhurst
Spring Gully
Upper Coliban

If you have any suggestions or requests regarding this page we'd love to hear them.
Please email communications@coliban.com.au

 

 

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