East Alligator district centre water supply assessment : Kakadu National Park
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.)
Power and Water Authority
Technical Report ; 26/1991
1 v. : ill., maps ; 30 cm.
Check within Publication or with content Publisher.
Technical Report WRD91026 Viewed at 15:07:48 on 29/07/2010 Page 6 of 107. SUMMARY OF REPORT ,"'INDINGS (i) Sustainable Yield of Present Borefield The sustainable yield of the main borefield at the East Alligator District Centre is between 120 and 130 kL/day. The estimated current peak water demand of the centre is 122 kL/day. (ii) Additional Information Required There is a need for more information about the water resource and supply system. Monthly water level measurements should be taken from all available bores. Meters on the pumped bores and storage tanks outlet should be checked and read to record weekly production and consumption. Meters could also be provided at the distribution points. This will enable a future review of the groundwater resource and system. Much of the recommendations in this report are based on estimates of current water usage. 1991 water usage should be compared to the water use figures in Table 3.1 before any works are implemented to cater for future demand. To make provision for these measurements to be, taken should cost around $6500 (see Section 5) (iii ) 005MJ Immediate Work to Ensure Reliability of System Corrosion Study The water supply corrosive nature. ha,s A been identified as being of a study should be undertakHn to ascertain suitable materials for use in the water supply system and to aid in the choice of remedial works that are necessary to maintain a reliable water supply. The cost of this study is estimated to be around $1.0,400 (see Secti::>n 5). Replacement of Galvanised Pipe and Fittinas High iron concentrations are consistently found in water taken from the distribution system. Also, higher concentrations of zinc are present in the distribution
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