About the area
The Denison Groundwater Management Area (GMA) covers a shallow sand aquifer with silts and clays and is bordered to the north by the Thomson River, where it partially overlies the Sale WSPA and fully overlies the Rosedale GMA and Stratford GMA.
The water authority responsible for managing groundwater in the Denison GMA is Southern Rural Water.
The Central Gippsland Shallow Aquifers Local Management Plan incorporates the Denison GMA, where it applies to groundwater resources for all formations between the surface to 25 m below the surface.
More information on groundwater management can be found on the Southern Rural website.
Groundwater level trends
There are insufficient state observation bores in the Denison GMA to adequately define the groundwater resource or changes to the resource over time.
Table 1: Groundwater level trends, Denison GMA
Groundwater restrictions
There were no restrictions on licensed use in the Denison GMA in 2022-23.
Entitlements and use
Groundwater is available for licensed (non-urban) supply and for domestic and stock use.
Entitlement volumes
Table 2: Groundwater entitlements at 30 June, Denison GMA
Available water and use
The table below shows the total water available and used under entitlements, and estimated domestic and stock use in 2022-23. Total water available under entitlements is the sum of opening carryover, allocation issued and the net trade in or out of water.
Estimated domestic and stock use is calculated based on an assumed usage per registered bore per year. In this GMA, 1.5 ML usage per bore per year is assumed.
More information on groundwater use and availability has been detailed in How we account for .
Table 3: Groundwater availability and use, Denison GMA
Compliance
Compliance against water entitlements is reported for this groundwater management unit (GMU) in 2 areas:
- entitlement issued: that the volume of entitlements issued in the GMU does not exceed relevant permissible consumptive volumes (PCVs) or has not increased without appropriate approvals
- water extracted: that the volume of water taken under entitlements during the year does not exceed the total water available to licence holders.
Key points on compliance against entitlements
Entitlement volume did not exceed the PCV
The volume of entitlements (18,499 ML) in the Denison GMA did not exceed the PCV (18,502 ML).
Total volume extracted under licences was within the available volume
The total volume extracted under licences (2,922 ML) was within the volume available for the year (18,499 ML).
Table 4: PCV vs total entitlement volumes, Denison GMA
Management responsibilities
Management of water in the Denison GMA is undertaken by Southern Rural Water.
Authority | Management responsibilities |
---|---|
Southern Rural Water |
|