Territory Stories

Groundwater studies Ti-Tree Basin 1984-1988



Groundwater studies Ti-Tree Basin 1984-1988

Other title

Peter McDonald


McDonald, Peter


E-Publications; E-Books; PublicationNT; Power and Water Authority Report ; no. 1/1990




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






Groundwater -- Northern Territory -- Ti-Tree Region

Publisher name

Water Resources Branch, Power and Water Authority

Place of publication

Alice Springs


Power and Water Authority Report ; no. 1/1990


1 v. : ills., maps ; 30 cm.

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elm limited field testing has been carried out, but indications are that field pH may be up to one unit lower, well-head measurement at RN 14248 and RN 14250, at Territory Grape Farms, showed dissolved CO 2 concentrations of 70 mg/L. The loss of this gas during sample transit could be expected to account for increase in pH as seen at the laboratory. Nitrate concentration (as NO 3 ) as shown at Figure 11, is high, and occasionally very high (> 200 mg/L) in the eastern Ti-Tree Basin. The central portion generally shows concentrations of 70 to 90 mg/L in the major supplies. This naturally occurring nitrate, whilst a problem for potable supplies, is a bonus in horticultural use, facilitating savings in nitrogenous fertiliser application. Boron has been measured in samples from only 3 bores. These were; RN 13938 0.65 mg/L B RN 13939 0.85 mg/L B RN 13940 0.70 mg/L B Hart (1974) lists a number of crops, including grapes, and citrus, as being sensitive to boron, with a 'recommended derived working level' of 0.3 mg/L. Territory Grape Farms Pty Ltd have however, indicated that they do not anticipate problems at the levels seen. Determinations for radium have been carried out on samples pumped from RN 14249 and RN 14853. Results were as follows;

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