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, August 26, 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 0.0 181.0 360 32,665 62,520 89.8%
Yesterday morning 0.0 181.0 468 32,355 62,224 89.4%
 
This time last year** 45% 99.0 93.1% 2,267 43,915 63.1%
Last 20 year median** 10% 163.0 69.5% 9,967 29.8%

 

* 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 37,532 99.4% 22,058 58.4%
Lauriston 19,790 17,330 87.6% 16,770 84.7%
Malmsbury 12,034 7,658 63.6% 5,067 42.1%
TOTAL 69,594 62,520 89.8% 43,895 63.1%

 

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 29,761 54.3% 32,304 58.9%

 

 

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, August 17, 2016 57,282 82.3% 162 0.2%
Thursday, August 18, 2016 57,492 82.6% 210 0.3%
Friday, August 19, 2016 57,704 82.9% 212 0.3%
Saturday, August 20, 2016 58,572 84.2% 868 1.2%
Sunday, August 21, 2016 59,166 85% 594 0.9%
Monday, August 22, 2016 60,489 86.9% 1,323 1.9%
Tuesday, August 23, 2016 61,319 88.1% 829 1.2%
Wednesday, August 24, 2016 61,830 88.8% 511 0.7%
Thursday, August 25, 2016 62,224 89.4% 394 0.6%
Friday, August 26, 2016 62,520 89.8% 296 0.4%
10 day total 5,400 7.8%

 

 

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
Wednesday, August 17, 2016 0.0 266 27,295
Thursday, August 18, 2016 0.0 233 27,520
Friday, August 19, 2016 0.0 213 27,758
Saturday, August 20, 2016 14.0 882 28,640
Sunday, August 21, 2016 3.0 743 29,243
Monday, August 22, 2016 10.0 1333 30,576
Tuesday, August 23, 2016 0.0 1087 31,418
Wednesday, August 24, 2016 0.0 684 31,945
Thursday, August 25, 2016 0.0 468 32,355
Friday, August 26, 2016 0.0 360 32,665
10 Day Total 29.0 6270

* 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, August 17, 2016 23 5 5
Thursday, August 18, 2016 23 5 5
Friday, August 19, 2016 23 4 4
Saturday, August 20, 2016 23 5 5
Sunday, August 21, 2016 24 5 5
Monday, August 22, 2016 24 6 6
Tuesday, August 23, 2016 24 4 4
Wednesday, August 24, 2016 24 4 4
Thursday, August 25, 2016 23 5 5
Friday, August 26, 2016 21 5 5
10 day total 232 45 45
Year to date 1,050 143 2,063 2,206

 

* 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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