Ord
Future

Future prospects

Table 1 shows that at 30 June 2011 there was a surplus of available water assets over water liabilities and future commitments expected to be settled within 12 months of the reporting date.

Table 1. Future prospects for Ord region

 

Volume (ML)

Total water assets as at 30 June 2011

15,148,491

Less water assets not available to be accessed, taken or delivered:

 

Dead storage

411,175

Conveyance water

0

Subtotal

14,737,316

Less total water liabilities as at 30 June 2011

307,704

Subtotal

14,429,612

Less future water commitments expected to be settled within 12 months of the reporting date

 

Expected diversion of surface water

160,000

Expected extraction of groundwater

8,000

Expected releases of environmental water provisions

2,000,000

Subtotal

2,168,000

Surplus/(deficit) of available water assets over water liabilities and future water commitments expected to be settled within 12 months of the reporting date

12,261,612


Expected diversions, extractions and releases of water are based on abstractions made during the 2010–11 year. High rainfall during the 2010–11 year resulted in higher storage levels across the region compared to previous years. As a consequence, more surface water is available in the region for all purposes.

Based on recent data (last 10 years), future inflows to surface water storages in the region are likely to be between 2,000,000 ML and 3,000,000 ML per year. Future water commitments in the Ord region are likely to be met by future water inflows.

Contingent water assets and water liabilities

Purpose of the note

The purpose of this note is to report on possible water asset and possible water liabilities for the region. Possible (or contingent) water assets and water liabilities arise from past events and may be confirmed if future events, that are not fully under the control of the region's management occur.

 

Contingent water assets

The non-extractable portion of groundwater is considered to be a contingent water asset and is subject to development of groundwater resources in the region. Currently, there is insufficient information on groundwater resources in the region to estimate the volume available.

 

Contingent water liabilities

Water for irrigation (80,000 to 120,000 ML): The Ord River Irrigation Area is currently undergoing expansion. It is estimated that an additional 80,000 to 120,000 ML will be required for new licences for irrigation in the next three years. The amount of water required is subject to land sales and development in the irrigation area, and subsequent approval of licence applications by the Western Australian Department of Water.

Water for urban (public water) supply (500 ML): With the expected development of the Ord River Irrigation Area, there may also be some expansion of urban areas in the immediate area. It is estimated that an additional 500 ML will be required for public water supply. The amount of water required is subject to land sales and urban development.

Both of these contingent liabilities are within the limits set by the Western Australian Department of Water in the Ord Surface Water Allocation Plan: for public comment  (Department of Water, 2012).