Territory Stories

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.

File type


Copyright owner

Check within Publication or with content Publisher.

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Technical Report WRD91026 Viewed at 15:07:48 on 29/07/2010 Page 11 of 107. The total estimated cost to upgrade the cater for a 10% pa growth in water $448,000. water supply system to use over 10 years is (v) Upgrades Requi't;'ed to Meet a 3'0% pa Growth in Water Dema.llii Bores A 30% demand kLjday. and it pa growth in demand over 10 years results in a of 1. 1 MLjday, or an increase in demand of 967 This will require a number of additional bores is questionable if this demand could be met by the local groundwater supply. Additional bores capable of produci.ng a total of 11.2 Ljsec with continuous pumping will meet this demand. If this much water is available from groundwater in the area, the cost to provide bo,ces to produce it is estimated to be $930,000. Storaae The existing storage will be insufficient to cater for the peak daily demand after 1 1/2 years. A further 926 kL of storage will be required after ten years. This storage s):,ould be provided through ground level tanks which in turn feed the elevated storage by pumping. This should cost about $230,000. Recticulation There are significant reticulation to cater modifications required in the for a 30% pa growth in water demand. In one years time 2550 m of 50 mm uPVC, 630 m of 50 mm polyethylene, and 722 m of 65 mm uPVC will need to be replaced for 100 mm uPVC. Another 1210 m of 50 mm uPVC will need to be replaced by 100 mm uPVC in four years time. This is detailed in sections 3.6 and 3.7, and should cost around $263,000. The estimated total cost of works required to meet a 30% pa growth in ,vater demand over the next 10 years is $1,427,000. 005MJ

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