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).
Department of Infrastructure, Planning and Environment
Report ; no. 42/2003
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contents over time are shown in Figure 27 , and Figure 28 shows bore locations. It can be seen that there are significant differences between bores that are close. RN 3064 is only 14 m from RN 3071, hence their water chemistry should be similar. With this assumption chloride content of the water discharging from the Town Basin has increased by a factor of 3 between 1957 and the present. Chinaman Creek (or Bradshaw Drain) receives groundwater discharge and flows into the Todd just above Heavitree Gap. Water analyses for it are shown in Appendix A. The highest TDS and chloride values measured in it are about 5000 mg/L and 1 500 mg/L respectively, slightly higher than in RN 3064. No flow figures are available for Chinaman Creek, but base-flow would be small and the overall contribution minor. 1955 1960 1965 1970 1975 1980 1985 1990 1995 2000 2005 Year 0 400 800 1200 1600 Ch lo ri de in mg /L RN 3064 RN 3067 RN 3068 RN 3069 RN 3071 RN 3072 RN 7506 Figure 27 Chloride in groundwater at Heavitree Gap 43