Water Resources

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

Last updated: Friday, 23 June 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 0.0 895.0 31 100,539 54,435 78.2%
Yesterday morning 0.0 895.0 19 100,514 54,448 78.2%
 
This time last year** 43% 507.0 92.5% 7,543 29,992 43.1%
Last 20 year median** 30% 630.0 72.8% 27,390 44.9%

 

* 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 35,186 93.2% 14,401 38.1%
Lauriston 19,790 17,370 87.8% 13,030 65.8%
Malmsbury 12,034 1,879 15.6% 2,613 21.7%
TOTAL 69,594 54,435 78.2% 30,044 43.2%

 

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 52,090 95% 20,170 36.8%

 

 

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
Wednesday, 14 June 2017 54,419 78.2% -12 0%
Thursday, 15 June 2017 54,473 78.3% 53 0.1%
Friday, 16 June 2017 54,469 78.3% -4 0%
Saturday, 17 June 2017 54,487 78.3% 18 0%
Sunday, 18 June 2017 54,509 78.3% 22 0%
Monday, 19 June 2017 54,509 78.3% 0%
Tuesday, 20 June 2017 54,461 78.3% -48 -0.1%
Wednesday, 21 June 2017 54,476 78.3% 14 0%
Thursday, 22 June 2017 54,448 78.2% -28 0%
Friday, 23 June 2017 54,435 78.2% -13 0%
10 day total 4 0%

 

 

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
Wednesday, 14 June 2017 0.0 4 100,314
Thursday, 15 June 2017 0.0 21 100,378
Friday, 16 June 2017 0.0 24 100,386
Saturday, 17 June 2017 0.0 33 100,414
Sunday, 18 June 2017 0.0 23 100,446
Monday, 19 June 2017 0.0 24 100,457
Tuesday, 20 June 2017 0.0 10 100,445
Wednesday, 21 June 2017 0.0 18 100,500
Thursday, 22 June 2017 0.0 19 100,514
Friday, 23 June 2017 0.0 31 100,539
10 Day Total 0.0 207

* 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)
Wednesday, 14 June 2017 32 5 5
Thursday, 15 June 2017 30 4 4
Friday, 16 June 2017 32 4 4
Saturday, 17 June 2017 32 4 4
Sunday, 18 June 2017 30 4 4
Monday, 19 June 2017 30 4 4
Tuesday, 20 June 2017 30 23 4 28
Wednesday, 21 June 2017 30 32 4 37
Thursday, 22 June 2017 30 32 4 37
Friday, 23 June 2017 30 32 3 35
10 day total 303 120 43 162
Year to date 46,160 18,475 51,595 70,071

 

* 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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