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Alice Springs town basin, review 2003



Alice Springs town basin, review 2003


Read, R. E.


E-Publications; E-Books; PublicationNT; Report ; no. 42/2003




Made available via the Publications (Legal Deposit) Act 2004 (NT).





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Department of Infrastructure, Planning and Environment

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Alice Springs


Report ; no. 42/2003

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7 RECOMMENDATIONS FOR MANAGEMENT 7.1 Data Management Surface water data needs work as stated in Section 4.1. Production data needs to be entered in the HYDSYS database. The HYDSYS database contains a great deal of major ion chemical data. However it is a disaster in respect to isotope chemistry, total organic carbon and possibly other minor constituents. Much of this information is in old data files and there needs to be a concerted attempt to get all this information into HYDSYS. 7.2 Data Acquisition 7.2.1 Salt Balance To understand the salt balance of the Town Basin it is essential to monitor salinity at Heavitree Gap. Moves are in progress to add a conductivity probe to the water level logger at Heavitree Gap. 7.2.2 Sampling for pollutants, insecticides Power Water are currently regularly testing their production bores for a range of contaminants. This should include some testing for dieldrin which has been detected previously. 7.2.3 Water level monitoring The existing monitoring grid has evolved historically to monitor the Town Basin. There is a need to extend the monitoring grid to give information on water levels in the areas of weathered rock in the areas fringing the Town Basin. Figure 39 shows the locations of currently monitored and proposed monitoring bores. Table 18 shows the location of existing bores that could be monitored. Table 19 shows proposed new monitoring bores to be drilled. Monitoring bores need only by drilled into the regolith to intersect the water table. A full size water well rig is neither needed nor desirable for this. A light auger or similar rig that can work in limited space would be desirable. Table 18 Existing bores that could be monitored RN Easting Northing Depth m Comments 17494 384346 7379243 11.5 Drilled as part of the railway clean-up, control passed to DIPE. 5714 384698 7381630 101.8 Disused private production bore 5713 385058 7380590 65.2 Disused private production bore 62