February 2020
The Coliban System Northern supplies the towns of Bendigo, Axedale, Huntly, Raywood, Sebastian, Heathcote and Tooborac.
The towns can be supplied by the major Coliban Water storages, an 18 per cent share of Lake Eppalock, or the Waranga Western Channel via the Available raw water supply Goldfields Superpipe. Lake Eppalock Total available Available allocation1 Our storages2 (our share) (Megalitres) Water Summaries are prepared each month to provide current water 27,486 ML 32,878 ML 2,527 ML 62,892 ML resource information. 1 Our Urban Water Strategy outlines Allocation against Coliban Water’s water shares and carryover from previous year, less water spilt or held in spillable water account. Includes seasonal allocation water sold and transfers into and out of this system our water supply initiatives to meet 2 Sandhurst and Caledonia storages. Includes a portion of water available from the major Coliban Water our region’s residential, business and storages reported in the Coliban System Southern Summary. community water needs for the next 50 years. The graph below shows the raw water 12-month supply and demand outlook for the Our nine supply systems have Coliban System Northern. independent sources of water and supply constraints. Please ensure you read the update relevant to your town.
To ensure we are providing information that is relevant and useful, send your suggestions and feedback to our postal address: 37- 45 Bridge Street, Bendigo 3550 or e-mail to: [email protected]
Further system information
> Lake Eppalock Allocation trade & Superpipe pumping We can access up to 17,440 ML per year averaged over three years from our share Trade Trade Pumping Pumping 3 3 4 4 of Lake Eppalock. for month to date for month to date > Water shares volume 0 ML 7,100 ML 1220 ML 2,600 ML Goulburn – 22,774 ML HRWS ML = Megalitres Goulburn – 2,85 7 ML LRWS 3 Seasonal allocation water sold during month, year or transferred to a trading account. Includes Campaspe - 2,591 ML HRWS transfers into and out of this system. 4 Campaspe – 646 ML LRWS Transferred from the Waranga Western Channel or Lake Eppalock to Sandhurst Reservoir. Excludes pumping to Heathcote. > Water shares allocation Goulburn – 16,170 ML Demand comparison 71% high reliability 0% low reliability The graph below shows 2019-20 cumulative water usage for the Coliban System Campaspe – 1,840 ML Northern compared with the same period last year and estimated demand. The 71% high reliability usage and demand include urban, rural and losses. 0% low reliability
> Allocation trade Seasonal allocation against bulk entitlements and water shares can be traded on the water market into and out of this system. Transfers may cause sudden changes in available water from month to month. In average years the total allocation is not required to meet demand.
> Spillable Water Account Restrictions apply to the holding of allocation in excess of 100% of the entitlement volume. The Resource Manager (Goulburn-Murray Water) may allow this water to be held in a ‘spillable water account’ until such time as it is either spilt, or credited to an Monthly usage by towns allocation account. A low risk of spill was declared in the The graphs below show this month’s water usage for the Coliban System Northern and Goulburn and Campaspe Systems on each town supplied by this system, compared with the same period last year. 1 July 2019.
> Rural allocation The 2019/20 rural season opened with 100 per cent allocation.
> Water restriction outlook Permanent Water Saving Rules (PWSR) currently apply. The restriction levels are reviewed monthly based on inflows into storages and seasonal allocations.
Information in this update is provided as a guide only. Coliban Water reserves the right to alter or change information 12/03/2020
February 2020
The Coliban System Southern supplies the towns of Castlemaine, Kyneton, Maldon, Newstead, Malmsbury, Harcourt, Elphinstone, Tylden and Taradale.
Raw water is supplied by our Coliban River catchment storages: Upper Coliban, Lauriston and Malmsbury Reservoirs, located near Kyneton. Available raw water supply
Environmental Holding basins Total available Water Summaries are prepared each Our storages1 (McCay and Reserve2 (Megalitres) month to provide current water Barkers Creek) resource information. 49,432 ML 1,246 ML 688 ML 48,874 ML Our Urban Water Strategy outlines our 1. Our storages can also supply Coliban System Northern. water supply initiatives to meet our 2. Stored in Malmsbury Reservoir and only available to meet environmental obligations. region’s residential, business and community water needs for the next The graph below shows the raw water 12-month supply and demand outlook for the 50 years. Coliban System Southern.
Our nine supply systems have independent sources of water and supply constraints. Please ensure you read the update relevant to your town.
To ensure we are providing information that is relevant and useful, send your suggestions and feedback to our postal address: 37- 45 Bridge Street, Bendigo 3550 or e-mail to: [email protected]
Further system information Demand comparison > Rainfall The graph below shows 2019-20 cumulative water usage for the Coliban System 62 millimetres of rainfall was Southern compared with the same period last year and estimated demand. The usage and demand include urban, rural and losses. recorded at Malmsbury Reservoir during February 2020.
> Rural allocation The 2019/20 rural season opened with 100 per cent allocation.
> Water restriction outlook Permanent Water Saving Rules (PWSR) currently apply. The restriction levels are reviewed monthly based on inflows into storages and seasonal allocations.
Monthly usage by town
The graphs below show this month’s water usage for the Coliban System Southern and the towns supplied by this system, compared with the same period last year.
Coliban catchment inflows The graphs below show this month’s inflows for our three major catchment storages near Kyneton, compared with the same period last year and 2019-20 cumulative inflows compared to the cumulative median inflow. The median inflow value represents the mid-point of inflow values from 1975 to 2017.
Information in this update is provided as a guide only. Coliban Water reserves the right to alter or change information. 12/03/2020
February 2020
The Campaspe System only supplies the town of Goornong (it formerly supplied the towns of Axedale and Rochester).
Raw water is supplied from the Campaspe River. Goulburn-Murray Water manages the raw water supply. Available raw water supply
Total Carryover Allocation Allocation Spillable Usage Water Summaries are prepared each Available last year to date Trade2 water1 to date month to provide current water (Megalitres) resource information. 135 ML 248 ML 0 ML 0 ML 74 ML 309 ML Our Urban Water Strategy outlines our water supply initiatives to meet 1 Water spilt and held in the spillable water account. There is a risk of spill of water in excess of our our region’s residential, business and entitlement volume. 2 Seasonal allocation water sold during month, year or transferred to a trading account. Includes transfers community water needs for the next into and out of this system.
50 years.
The graph below shows the raw water 12-month supply and demand outlook for the Our nine supply systems have Campaspe System. independent sources of water and supply constraints. Please ensure you read the update relevant to your town.
To ensure we are providing information that is relevant and useful, send your suggestions and feedback to our postal address: 37- 45 Bridge Street, Bendigo 3550 or e-mail to: [email protected]
Further system information Demand comparison > Bulk entitlement volume The graph below shows 2019-20 cumulative water usage for the Campaspe System compared with the same period last year and estimated demand. – 349 ML
> Allocation volume - 71% - 248 ML
> Allocation trade Seasonal allocation against bulk entitlements and water shares can be traded on the water market into and out of this system. In average years the total allocation is not required to meet demand.
> Spillable Water Account Restrictions apply to the holding of allocation in excess of 100% of the entitlement volume. The external Resource Manager (Goulburn-Murray Water) may allow this water to be held in a ‘spillable water account’ until such time as it is either spilt, or credited to an Monthly usage by town allocation account. The graph below show this month’s water usage for Goornong compared with the A low risk of spill was declared in the same period last year. Campaspe System on 1 July 2019.
> Water restriction outlook Permanent Water Saving Rules (PWSR) currently apply. The restriction levels are based on seasonal allocations and are reviewed monthly.
Information in this update is provided as a guide only. Coliban Water reserves the right to alter or change information. 12/03/2020
February 2020
The Goulburn System supplies the towns of Rochester, Pyramid Hill, Boort, Lockington, Mitiamo, Serpentine, Dingee, Jarklin, Mysia and Macorna.
Raw water is supplied from the Waranga Western Channel.
Goulburn-Murray Water manages the raw water supply. Available raw water supply
Total Water Summaries are prepared each Carryover Allocation Allocation Spillable Usage available month to provide current water last year to date trade water1 to date (Megalitres) resource information. Our Urban Water Strategy outlines 1,367 ML 2,463 ML 0 ML 0 ML 826 ML 3,004 ML our water supply initiatives to meet 1 Water spilt and held in the spillable water account. 2 our region’s residential, business and Seasonal Allocation water sold during month, year or transferred to a trading account. community water needs for the next 50 years. The graph below shows the raw water 12 month supply and demand outlook for the Goulburn System. Our supply systems have independent sources of water and supply constraints. Please ensure you read the update relevant to your town.
To ensure we are providing information that is relevant and useful, send your suggestions and feedback to our postal address: 37- 45 Bridge Street, Bendigo 3550 or e-mail to: [email protected]
Further system information Demand comparison > Bulk entitlement volume The graph below shows 2019-20 cumulative water usage for the Goulburn System – 2,420 ML compared with the same period last year and estimated demand. Our Goulburn System Entitlement has a very high reliability of supply.
> Water Allowance - 60 ML Our water allowance has the same reliability as High Reliability Water Shares.
> Allocation volume Bulk Entitlement - 100% - 2,420 ML Water Allowance – 71% - 43 ML
> Allocation trade Seasonal allocations against bulk entitlements and water shares can be traded on the water market into and out of this system. In average years the total allocation is not required to meet demand. Monthly usage by towns The graphs below show this month’s water usage for the Goulburn System and > Spillable Water Account each town supplied by this system, compared with the same period last year. Restrictions apply to the holding of allocation in excess of 100% of the entitlement volume. The external Resource Manager (Goulburn-Murray Water) may allow this water to be held in a ‘spillable water account’ until such time as it is either spilt, or credited to an allocation account. A low risk of spill was declared in the Goulburn System on 1 July 2019.
> Water restriction outlook Permanent Water Saving Rules (PWSR) currently apply. The restriction levels are based on seasonal allocations and are reviewed monthly.
Information in this update is provided as a guide only. Coliban Water reserves the right to alter or change information 12/03/2020
February 2020
The Elmore System only supplies the town of Elmore.
Raw water is supplied from two groundwater bores. Goulburn- Murray Water manages the raw water supply.
Elmore is within the Lower Campaspe Valley Groundwater Available raw water supply Management Area, Elmore- Total Rochester Zone. Carryover Allocation Allocation Usage Available last year1 to date trade to date (Megalitres) Water Summaries are prepared each 71 ML 284 ML 0 ML 102 ML 253 ML month to provide current water resource information. 1. From January 2016 we have included carryover from last year in our available raw water supply. Our groundwater licence allows carryover from the previous year. The maximum carryover is 25% Our Urban Water Strategy outlines of the entitlement volume. our water supply initiatives to meet our region’s residential, business and community water needs for the next The graph below shows the raw water 12 month supply and demand outlook for the 50 years. Elmore System. Our nine supply systems have independent sources of water and supply constraints. Please ensure you read the update relevant to your town. To ensure we are providing information that is relevant and useful, send your suggestions and feedback to our postal address: 37- 45 Bridge Street, Bendigo 3550 or e-mail to: [email protected]
Further system information Demand comparison > Groundwater licence volume – 284 ML The graph below shows 2019-20 cumulative water usage for the Elmore System compared with the same period last year and estimated demand.
> Allocation volume - 100% - 284 ML
> Water restriction outlook Permanent Water Saving Rules (PWSR) currently apply. The restriction levels are based on seasonal allocations and are reviewed monthly.
Monthly usage by town The graph below show this month’s water usage for the Elmore System compared with the same period last year.
Information in this update is provided as a guide only. Coliban Water reserves the right to alter or change information. 12/03/2020
February 2020
The Trentham System only supplies the town of Trentham.
Raw water is supplied from two sources: a natural spring that fills two storages, and a groundwater licence of 103 megalitres which can supplement the natural spring when needed. Available raw water supply Water Summaries are prepared each month to provide current water Groundwater Our storage Total resource information. licence volume this month Available (Megalitres) Our Urban Water Strategy outlines 103 ML 75 ML 178 ML our water supply initiatives to meet our region’s residential, business and community water needs for the next The graph below shows the raw water 12 month supply and demand outlook for the 50 years. Trentham System.
Our application to increase the volume of our existing groundwater licence at Our nine supply systems have Trentham by 55 megalitres per year has been approved by GMW. This volume will independent sources of water and meet our short to medium term demand projections identified in our Urban Water supply constraints. Strategy. Please ensure you read the update relevant to your town.
To ensure we are providing information that is relevant and useful, send your suggestions and feedback to our postal address: 37- 45 Bridge Street, Bendigo 3550 or e-mail to: [email protected]
Further system information Demand comparison
> Bulk entitlement volume – 120 ML The graph below shows 2019-20 cumulative water usage for the Trentham System compared with the same period last year and estimated demand. > Groundwater licence volume – 103 ML
> Allocation volume Bulk Entitlement - 100% - 120 ML Groundwater – 100% - 103 ML
The bulk entitlement allows up to 120 megalitres per year averaged over a three year period. The maximum rate of extraction permitted is no more than 1.2 megalitres per day.
The estimated annual spring flow is 84-145 megalitres depending on preceding seasonal conditions, i.e. dry or wet respectively .
The spring flows into two surface Monthly usage by town storages that have a combined volume of 90.5 megalitres. The graph below show this month’s water usage for the Trentham System Groundwater can supplement the compared with the same period last year. natural spring when needed.
Trentham is within the Central Victorian Mineral Springs Groundwater Management Area, Coliban Zone.
> Water restriction outlook Permanent Water Saving Rules (PWSR) currently apply. The restriction levels are based on seasonal allocations and are reviewed monthly.
Information in this update is provided as a guide only. Coliban Water reserves the right to alter or change information. 12/03/2020
February 2020
The Loddon System supplies the towns of Bealiba, Bridgewater, Dunolly, Inglewood, Laanecoorie and Tarnagulla.
Raw water can be supplied from the Loddon River or the South West Loddon Pipeline.
Goulburn-Murray Water manages the raw water supply from the Loddon River and Grampians Available raw water supply Wimmera Mallee Water manages the raw water supply from the Allocation Allocation Usage Total available 1 South West Loddon Pipeline. to date Trade to date (Megalitres) 820 ML 0 ML 196 ML 624 ML Water Summaries are prepared each 1Seasonal allocation water sold during month, year or transferred to a trading account. month to provide current water resource information. The graph below shows the raw water 12 month supply and demand outlook for the Our Urban Water Strategy outlines our water supply initiatives to meet our Loddon System. region’s residential, business and community water needs for the next 50 years.
Our nine supply systems have independent sources of water and supply constraints. Please ensure you read the update relevant to your town.
To ensure we are providing information that is relevant and useful, send your suggestions and feedback to our postal address: 37- 45 Bridge Street, Bendigo 3550 or e-mail to: [email protected]
Further system information Demand comparison
> Bulk entitlement volume The graph below shows 2019-20 cumulative water usage for the Loddon System from the Loddon River compared with the same period last year, and estimated – 820 ML demand.
> Allocation volume It does not include water taken from the South West Loddon Pipeline, which has supplied Bridgewater & Inglwood since November 2019 with total of 118 ML to - 71% - 582 ML date. The allocation volume under the Loddon Bulk Entitlement includes the carryover from the previous year.
The maximum carryover is 50 percent of the entitlement volume.
> Spillable Water Account Spillable water accounts are not available in the Loddon System.
> Allocation trade Seasonal allocation against bulk entitlements and water shares can be traded on the water market into and out of this system. In average years the total allocation Monthly usage by towns is not required to meet demand. The graphs below show this month’s water usage for the Loddon System and each town supplied by this system, compared with the same period last year. > Water restriction outlook Permanent Water Saving Rules (PWSR) currently apply. The restriction levels are based on seasonal allocations and are reviewed monthly.
The usage shown in the above graphs for February 2020 reflects the supply from the Loddon River only.
Bridgewater and Inglwood used of 22 ML in February from the South West Loddon Pipeline.
Information in this update is provided as a guide only. Coliban Water reserves the right to alter or change information. 12/03/2020
February 2020
The Murray System supplies the towns of Cohuna, Echuca, Gunbower and Leitchville.
Raw water is supplied from the Murray River. Goulburn-Murray Water manages the raw water supply. Available raw water supply Water Summaries are prepared each Total month to provide current water Carryover Allocation Allocation Spillable Usage Available2 resource information. last year to date Trade water1 to date (Megalitres) Our Urban Water Strategy outlines our water supply initiatives to meet 5,135 ML 3,614 ML 0 ML 0 ML 2,693 ML 6,056 ML our region’s residential, business and 1 Water spilt and held in the spillable water account. community water needs for the next 2 Allocation in other accounts can be transferred in if necessary. 50 years.
The graph below shows the raw water 12 month supply and demand outlook for the Our nine supply systems have Murray System. independent sources of water and supply constraints. Please ensure you read the update relevant to your town.
To ensure we are providing information that is relevant and useful, send your suggestions and feedback to our postal address: 37- 45 Bridge Street, Bendigo 3550 or e-mail to: [email protected]
Further system information Demand comparison > Bulk entitlement volume The graph below shows 2019-20 cumulative water usage for the Murray System – 6,285 ML compared with the same period last year and estimated demand.
> Water share volume – 55 ML high reliability - 522 ML low reliability > Allocation volume
Bulk entitlement
57% - 3,583 ML
Water shares
57% - 31 ML high reliability 0% - 0 ML low reliability
> Allocation trade Seasonal allocation against bulk entitlements and water shares can be traded on the water market into and out of this system. In average years the total allocation is not required to meet demand.
> Spillable Water Account Monthly usage by towns Restrictions apply to the holding of The graphs below show this month’s water usage for the Murray System and allocation in excess of 100% of the each town supplied by this system, compared with the same period last year. entitlement volume. The external Resource Manager (Goulburn-Murray Water) may allow this water to be held in a ‘spillable water account’ until such time as it is either spilt, or credited to an allocation account. A low risk of spill was declared in the Murray System on 1 July 2019.
> Water restriction outlook Permanent Water Saving Rules (PWSR) currently apply. The restriction levels are based on seasonal allocations and are reviewed monthly.
Information in this update is provided as a guide only. Coliban Water reserves the right to alter or change information. 12/03/2020
February 2020
The Wimmera System supplies the towns of Borung, Korong Vale, Wedderburn and Wychitella.
Raw water is supplied by the Wimmera Mallee Pipeline. Grampians-Wimmera Mallee Water manages the raw water supply. Available raw water supply Water Summaries are prepared each Total month to provide current water Carryover Allocation Spillable Usage Available resource information. last year to date water1 to date (Megalitres) Our Urban Water Strategy outlines our water supply initiatives to meet 220 ML 120 ML 0 ML 186 ML 154 ML our region’s residential, business and 1 Water spilt and held in the spillable water account. community water needs for the next 50 years. The graph below shows the raw water 12 month supply and demand outlook for the
Wimmera System. Our nine supply systems have independent sources of water and supply constraints. Please ensure you read the update relevant to your town.
To ensure we are providing information that is relevant and useful, send your suggestions and feedback to our postal address: 37- 45 Bridge Street, Bendigo 3550 or e-mail to: [email protected]
Connection to the South West Loddon Pipeline in 2019/20 will improve reliability of supply.
Further system information Demand comparison > Bulk entitlement volume The graph below shows 2019-20 cumulative water usage for the Wimmera – 300 ML System compared with the same period last year and estimated demand.
> Allocation volume - 40% - 120 ML Allocations under the Wimmera Bulk Entitlement are based on storage levels and the available water calculation.
> Allocation purchase
None proposed for 2019-20.
> Spillable Water Account Restrictions apply to the holding of allocation in excess of 100% of the entitlement volume. The external Resource Manager (Grampians-Wimmera Mallee Water) Monthly usage by towns may allow this water to be held in a ‘spillable water account’ until such The graphs below show this month’s water usage for the Wimmera System and time as it is either spilt, or credited each town supplied by this system, compared with the same period last year. to an allocation account.
Low risk of spill was declared on 2 July 2019.
> Water restriction outlook Permanent Water Saving Rules (PWSR) currently apply. The restriction levels are based on seasonal allocations and are reviewed monthly.
Information in this update is provided as a guide only. Coliban Water reserves the right to alter or change information. 12/03/2020