Territory Stories

Galiwinku Groundwater Resource and Evaluation DLH-492



Galiwinku Groundwater Resource and Evaluation DLH-492


Yin Foo, Des


E-Publications; E-Books; PublicationNT; Report ; 6/1984




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





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Dept. of Transport and Works

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Report ; 6/1984

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Technical Report WRD84006 Viewed at 14:07:13 on 29/07/2010 Page 7 of 60. 1. INTRODUCTION Galiwinku is situated approximately 500 km east of Darwin at the southern end of Elcho Island (see Figure 1.1). It was first settled in the 1930' s and later developed as a church mission. since then, it has become one of the Northern Territory's most populated aboriginal communities. Ini tially, domestic and garden water was drawn from a lagoon south of the community. Bore water was introduced in 1966 following a drilling programme which resulted in the construction of three production bores. Problems with sand entering the bores were encountered and replacement bores were required by 1974. During the investigation in 1974, the potential of the aquifer was recognised, with bores airlifted at up to 30 Lis. The pumping. investigation in 1981 involved drilling and test Two main objectives were followed: (i) to drill production bores to upgrade the community water supply. Demand had reached the stage where all available bores were operating at maximum capacity. This meant there was insufficient peak and standby capacity. The previous investigation indicated that bores of 200 rom diameter should be constructed to enable efficient explOitation of the resources; and (ii) to obtain information to enable a model of the aquifer to be developed. A safe yield of the aquifer could then be quantified. The potential for salt water intrusion into the aquifer also required assessment. Information gained from this investigation also enabled future borefield management strategies to be formulated. 1:REP3

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