Farm Water Calculator: the annual balance

Groundwater, creeks and rivers

Supply Type	Megalitres/years
Select Supply type Spring Watercourse (creek, stream or river) Groundwater Town Mains Other
Select Supply type Spring Watercourse (creek, stream or river) Groundwater Town Mains Other
Select Supply type Spring Watercourse (creek, stream or river) Groundwater Town Mains Other
Select Supply type Spring Watercourse (creek, stream or river) Groundwater Town Mains Other
Select Supply type Spring Watercourse (creek, stream or river) Groundwater Town Mains Other
Select Supply type Spring Watercourse (creek, stream or river) Groundwater Town Mains Other
Select Supply type Spring Watercourse (creek, stream or river) Groundwater Town Mains Other
Total from creeks, rivers, groundwater

If you don't know how much water can be supplied from creeks, rivers and bores you may need to manually measure this. The Agricultural Note Measuring Water Use in the Dairy steps through a flow rate and tank volume method to do this.

Roof surfaces

Error: Annual average rainfall (mm/year) has not been entered in the property details section (Step1). No value can be populated below without this figure.

Roof Name	Area (m2)	Megalitres/years
Total Roof Surface

Potential Catchment Supply

The rate and volume of runoff from a catchment is highly variable.
Please refer to Determining Catchment Yield for planning farm dams.

The Potential catchment supply figures below will prepopulate based on your catchment area/feeding dam, soil profile, ground cover, average rainfall & location (from step 1).
View the information in a table format

Error: Annual average rainfall (mm/year) or Location North/South of Divide has not been entered in the property details section (Step1). No value can be populated below without this figure.

Name	Area (ha)	Soil Profile	Ground Cover	Megalitres / years
		Select Soil profile Highly permeable Permeable Medium textured Heavy textured	Select Soil Ground Cover Annual pasture Improved pasture Timbered
		Select Soil profile Highly permeable Permeable Medium textured Heavy textured	Select Soil Ground Cover Annual pasture Improved pasture Timbered
		Select Soil profile Highly permeable Permeable Medium textured Heavy textured	Select Soil Ground Cover Annual pasture Improved pasture Timbered
		Select Soil profile Highly permeable Permeable Medium textured Heavy textured	Select Soil Ground Cover Annual pasture Improved pasture Timbered
		Select Soil profile Highly permeable Permeable Medium textured Heavy textured	Select Soil Ground Cover Annual pasture Improved pasture Timbered
Total volume of water supplying catchment dams (ML)

Total supply of water from creeks, rivers, groundwater:	0
Total volume of water from roof surfaces:	0
Total volume of potential water supplying catchment dams:	0
Total over-all volume rain on dam Volume:	in progress
Water Supply Total	megalitres/year