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, 27 May 2016

 

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 2.0 436.0 33 6,712 29,403 42.2%
Yesterday morning 16.0 434.0 39 6,705 29,404 42.3%
 
This time last year** 99% 439.0 32.7% 20,508 42,394 60.9%
Long term average** 69% 633.0 12.4% 54,277 69.4%

 

* Year To Date since 1 July 2015
**Percentages are current against same time last year / long-term average


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 13,872 36.7% 21,430 56.7%
Lauriston 19,790 13,130 66.3% 16,790 84.8%
Malmsbury 12,034 2,401 20% 4,174 34.7%
TOTAL 69,594 29,403 42.2% 42,394 60.9%

 

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 20,001 36.5% 34,694 63.3%

 

 

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, 18 May 2016 29,396 42.2% -11 0%
Thursday, 19 May 2016 29,438 42.3% 42 0.1%
Friday, 20 May 2016 29,356 42.2% -82 -0.1%
Saturday, 21 May 2016 29,345 42.2% -11 0%
Sunday, 22 May 2016 29,324 42.1% -21 0%
Monday, 23 May 2016 29,325 42.1% 1 0%
Tuesday, 24 May 2016 29,334 42.2% 9 0%
Wednesday, 25 May 2016 29,333 42.1% -1 0%
Thursday, 26 May 2016 29,404 42.3% 71 0.1%
Friday, 27 May 2016 29,403 42.2% -1 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, 18 May 2016 0.0 0 6,599
Thursday, 19 May 2016 0.0 16 6,653
Friday, 20 May 2016 5.0 0 6,581
Friday 30 January 2015 0.0 0 6,579
Sunday, 22 May 2016 0.0 0 6,570
Monday, 23 May 2016 6.0 2 6,588
Tuesday, 24 May 2016 1.0 11 6,612
Wednesday, 25 May 2016 0.0 19 6,627
Thursday, 26 May 2016 16.0 39 6,705
Friday, 27 May 2016 2.0 33 6,712
10 Day Total 31.0 121

* Since 1 July 2015

 

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, 18 May 2016 18 1 5 5
Thursday, 19 May 2016 18 1 4 5
Friday, 20 May 2016 18 1 4 5
Saturday, 21 May 2016 18 1 5 5
Sunday, 22 May 2016 18 1 5 5
Monday, 23 May 2016 18 1 5 5
Tuesday, 24 May 2016 18 1 5 5
Wednesday, 25 May 2016 18 1 5 5
Thursday, 26 May 2016 18 1 5 6
Friday, 27 May 2016 18 1 5 5
10 day total 177 7 45 52
Year to date 13,799 10,229 1,633 11,862

 

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

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

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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