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, 17 February 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 0.0 619.0 14 95,305 60,320 86.7%
Yesterday morning 0.0 619.0 0 95,277 60,438 86.8%
 
This time last year** 59% 256.0 94.3% 5,447 34,144 49.1%
Last 20 year median** 31% 430.0 71.5% 27,189 43.4%

 

* 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 36,625 97% 16,974 44.9%
Lauriston 19,790 18,020 91.1% 13,140 66.4%
Malmsbury 12,034 5,675 47.2% 3,964 32.9%
TOTAL 69,594 60,320 86.7% 34,078 49%

 

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 52,615 95.9% 20,684 37.7%

 

 

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, 8 February 2017 61,468 88.3% -130 -0.2%
Thursday, 9 February 2017 61,397 88.2% -71 -0.1%
Friday, 10 February 2017 61,269 88% -128 -0.2%
Saturday, 11 February 2017 61,143 87.9% -126 -0.2%
Sunday, 12 February 2017 61,014 87.7% -129 -0.2%
Monday, 13 February 2017 60,850 87.4% -163 -0.2%
Tuesday, 14 February 2017 60,706 87.2% -144 -0.2%
Wednesday, 15 February 2017 60,561 87% -145 -0.2%
Thursday, 16 February 2017 60,438 86.8% -123 -0.2%
Friday, 17 February 2017 60,320 86.7% -118 -0.2%
10 day total -1,278 -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
Wednesday, 8 February 2017 0.0 22 95,178
Thursday, 9 February 2017 0.0 10 95,259
Friday, 10 February 2017 1.0 36 95,281
Saturday, 11 February 2017 0.0 44 95,310
Sunday, 12 February 2017 0.0 23 95,328
Monday, 13 February 2017 1.0 3 95,290
Tuesday, 14 February 2017 0.0 0 95,265
Wednesday, 15 February 2017 0.0 0 95,255
Thursday, 16 February 2017 0.0 0 95,277
Friday, 17 February 2017 0.0 14 95,305
10 Day Total 2.0 152

* 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, 8 February 2017 24 96 4 100
Thursday, 9 February 2017 24 88 4 92
Friday, 10 February 2017 24 96 4 100
Saturday, 11 February 2017 24 99 4 103
Sunday, 12 February 2017 24 96 4 100
Monday, 13 February 2017 24 96 4 100
Tuesday, 14 February 2017 25 96 4 100
Wednesday, 15 February 2017 25 96 4 100
Thursday, 16 February 2017 25 96 4 100
Friday, 17 February 2017 25 96 4 100
10 day total 242 954 42 996
Year to date 40,560 10,552 51,041 61,593

 

* 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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