Alice Springs town basin, review 2003
Read, R. E.
E-Publications; E-Books; PublicationNT; Report ; no. 42/2003
2003-12-01
Made available via the Publications (Legal Deposit) Act 2004 (NT).
Date:2003-12
English
Department of Infrastructure, Planning and Environment
Alice Springs
Report ; no. 42/2003
application/pdf.
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https://hdl.handle.net/10070/229443
https://hdl.handle.net/10070/672980
1 10 100 1000 10000 Ca in mg/L 0.01 0.1 1 10 100 F in m g/ L Fluoride vs Calcium Data for Town Area Line of CaF2 saturation (Aylward & Findlay, 1965) Figure 19 Fluoride versus calcium, Town Area 5.4.1.2 Nitrate High nitrates are widespread in Central Australia, however nitrate in the Town Basin is generally low (Figure 20 ). The very high nitrate in the north east corner is a single analysis from a shallow well that was probably badly polluted. Figure 23 shows the relation between nitrate and chloride. It can be seen that there is a small population of waters with high nitrate and low chloride. The nitrate could not have been derived by evaporative concentration of river water, and is either a result of pollution, or possibly direct infiltration of nitrate rich waters. The very high chloride waters have low nitrate. 5.4.1.3 Potassium and Sodium Figure 21 shows the relationship of potassium and sodium concentrations. For the Todd at the Anzac and Heavitree gauging stations there is a clear power relationship. The groundwater samples are far more scattered, but show a very similar power relationship. The reason for this is not known. 29