Ord
18.12 Groundwater allocation diversion - urban water system
Supporting Information
The volume recognised in the water accounting statements (1,774 ML) represents the allocation extracted for urban groundwater entitlements in the Ord region for the 2011 Account.
During the year, the Western Australian Department of Water administered the licences as provided in the table below.
Licensee, Source |
Volume extracted (ML) 2010-11 |
Water Corporation (WA), Kununurra Town Water Supply Borefield |
1,361 |
Water Corporation (WA), Halls Creek Town Water Supply |
413 |
Total |
1,774 |
Quantification Approach
Data Source
Provided by
Method
The Water Corporation measures the weekly volume of water extracted for urban water supply from borefields around Kununurra and Halls Creek.
Assumptions, Limitations, Caveats and Approximations
- The licensee is required to install a cumulative water meter of a type approved under the Rights in Water and Irrigation (Approved Meters) Order 2009 for each water draw point under the licence. The licensee must ensure the installed meter(s) accuracy is maintained to within +/–5% of the volume metered, in field conditions.
- Meters must be installed in accordance with the provisions of the Guidelines for Water Meter Installation (Department of Water 2009).
Uncertainty Information
Derived from measured data. Uncertainty range +/–5%.
Comparative year
The following table compares the value for the 2009–10 year reported in this account with the corresponding value reported in the 2010 Account.
2011 Account line item |
2010 Account line item |
Value reported in the 2010 Account (ML) |
Value reported in the 2011 Account (ML) |
Additional information |
18.12 Groundwater allocation diversion – urban water system |
16.5.3.4 Groundwater allocation extraction – urban holder |
1,670 |
1,682 |
Volume restated due to subsequent availability of actual meter readings |