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In this section you will find detailed information, including national overviews and state and regional level assessments, from the 2000-2002 National Land and Water Resources Audit theme assessments.
Australian Natural Resources Atlas
Measurement Station ID: NSWGW025133/1
Bore Information
| Bore ID | Depth of Bore (m) | Start of Record | End of Record |
|---|---|---|---|
| NSWGW025133/1 | 34.6 | 01-Jan-78 | 01-Jan-00 |
Most water level observation bores in this GMU are converted exploration bores (which is quite common practice), and are not necessarily in the best locations for monitoring purposes. One group is at garryowen, once investigated as a dam site. At this location the water level behaviour is typified by sharp rises after recharge events followed by a gradual decline, with no long term trend either up or down. Rises after recharge events range from about half a metre to 2 m, depending on distance from the river. Three observation bores in Back Creek, near Holbrook, are in quite shallow alluvial deposits where there is no potential for, nor any actual, high rate pumping, and there is a slight long term rising trend (about 1m since the late 1970s) in a typical of dryland salting pattern. One bore near Walbundrie, downstream of Culcairn, shows a distinct rising trend with an unbroken rise totalling about 6m since 1978. Although in the main alluvial aquifer, this rise is attributed to dryland salinisation processes. It is thought to be caused by drainage of groundwater i0nto the alluvial aquifer from slate aquifers in the bedrock underlying the alluvium, resulting from increased head in the slate aquifer.
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