Summary of past drilling activity within the Great Artesian Basin, Great Artesian Basin Coordinating Committee
Great Artesian Basin Coordinating Committee
E-Publications; E-Books; PublicationNT; D0851
2017-11
Great Artesian Basin
The Great Artesian Basin Coordinating Committee (GABCC) requested bore hole data from the state and territory government databases to be collated to estimate the number of bore holes that have been drilled into the Great Artesian Basin (GAB). This is to inform discussions on the legacy of the 140 years of past drilling activity with respect to the long term management of the groundwater resources of the GAB.
Made available via the Publications (Legal Deposit) Act 2004 (NT).
Executive summary -- Introduction -- Scope -- Limitations of the data -- Summary of all available data -- Total number of reported bore holes drilled -- Date of construction -- Water bore data -- Drilling in areas of artesian conditions -- Water supply bore depths -- Estimated replacement value of water supply bores -- Number of bores with uncontrolled artesian flow -- Discussion -- Appendix A-E
English
Great Artesian Basin; Drilling Activity
Great Artesian Basin Coordinating Committee
Australia
D0851
27 pages : colour illustrations, colour maps, tables ; 30 cm.
application/pdf.
Copyright
Great Artesian Basin Coordinating Committee.
https://www.legislation.gov.au/Details/C2019C00042
http://www.gabcc.gov.au/
https://hdl.handle.net/10070/299513
https://hdl.handle.net/10070/383677
14 Appendix A. NSW Data NSW GAB groundwater management units There are eight groundwater sources within the GAB in NSW. These are managed across two water sharing plans. These are the Water Sharing Plan for the NSW Great Artesian Basin Groundwater Sources 2008, and the Water sharing plan for the NSW Great Artesian Basin Shallow Groundwater Sources 2011. Map 1 shows the five groundwater sources defined in the Water Sharing Plan for the NSW Great Artesian Basin Groundwater Sources 2008 which primarily manages groundwater within the principal Jurassic and Cretaceous aquifers that supply artesian water supplies. Two of these groundwater sources cover the recharge areas of the NSW GAB, these are the Eastern Recharge Groundwater Source and the Southern Recharge Groundwater Source. The Surat Groundwater Source, Warrego Groundwater Source and the Central Groundwater source typically have artesian conditions. Shallow bores, less than 60m, also obtain supplies from the near surface Cretaceous sequences. These are typically low yielding bores of brackish to saline groundwater. These shallow aquifers are managed separately to the underlying artesian aquifers under the Water sharing plan for the NSW Great Artesian Basin Shallow Groundwater Sources 2011. The water sources are the Surat Shallow Groundwater Source, Warrego Shallow Groundwater Source and the Central Shallow Groundwater Source. These shallow groundwater sources are identical in spatial extent to the underlying deep GAB water sources and for the purposes of this report the shallow and deep groundwater sources are reported together in Table 7 as they represent the same geographic area. Table 7: Distribution of boreholes across the NSW groundwater sources Bore purpose Eastern Recharge Southern Recharge Surat & Surat Shallow Warrego & Warrego Shallow Central & Central Shallow Total Water supply 1,215 4,054 2,229 773 961 9,232 Groundwater monitoring 16 74 207 2 0 299 Coal & mineral exploration 12 212 80 9 13 326 Oil/gas exploration/production 4 188 35 10 237 Other / not recorded 26 194 233 90 268 811 Total 1,273 4,722 2,784 874 1,252 10,905