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East Alligator district centre water supply assessment : Kakadu National Park



East Alligator district centre water supply assessment : Kakadu National Park

Other title

D . Pidsley


Jamieson, M.; Pidsley, D.; Paiva, Jerome


E-Publications; E-Books; PublicationNT; Technical Report ; 26/1991




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






Water-supply -- Northern Territory -- Kakadu National Park; Groundwater -- Northern Territory -- Kakadu National Park; Kakadu National Park (N.T.)

Publisher name

Power and Water Authority

Place of publication



Technical Report ; 26/1991


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

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Technical Report WRD91026 Viewed at 15:07:48 on 29/07/2010 Page 38 of 107. 23450 appear to operate for about 12-16 hours per day during the peak demand periods in the dry season. They operate one at a time, generally on alternate days, and pump at about 2.2 Lis. This means the pea~ demand is about 122 kL/day. 4.4 WATER LEVE~S Table 4.2 lists the water level measurements on record for the bores drilled at the District Centre. The difference in standing water levels and Hay 1981 is 3.8 (SWL) in RN 20560 between December 1980 m. Water had not been pumped from the fractured rock aquifer prior to this or between these t:imes. This difference indicates that the seasonal variation in water levels is of the order of 4 m. This is however, the only measurement of this variation and so the figure of 4 m should be used with care. RN 20559 has been decommissioned due to reported sulphur smells in the water. Heasurements taken of SWL in this bore in Hay 1981 and January 1991 indicate a possible drop in water levels due to over pumping within the fractured rock aquifer system during the previous ten years. I f a seasonal 'lariation of 4 m is considered reasonable, then there is a possible decline in the SWL of the aquifer of about 2 m. Before an accurate assessment of the water resource at East Alligator can be made, further measurements of standing and pumped water levels is required. 005HJ