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.
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Technical Report WRD91026 Viewed at 15:07:48 on 29/07/2010 Page 48 of 107. 5. COST ESTI~ffiTES FOR PROPOSED WORK Estimates of the cost to carry out the works recommended in this report have been made and are detailed in appendix 6. In order to make an estimate of the cost of much of the work, it was necessary to pre-E)mpt some of the findings from the corrosion study recommended in this report. It is possible that some of the materials priced for in the estimates are not the most economical materiE,ls to use in the given application. This specifically applies to the mechanical water meters and stainless steel pump estimating costs, have materials to use here. columns which, been assumed for to be The results from the the purpose of the appropriate corrosion study could affect some of the estimates to a large extent. In estimating the~ost to relocate the 60 kL storage tank it has been assumed that the method employed would involve the disconnection of the tank platform from the stand and the stand from the footings, and each of these would then be transported to the new site in one piece. This involves hiring a crane, probably from Dan,in and also a police escort for movement of the tank on any public road. It was assumed that the existing tanks would be lined with a woven plastic fabric, as is available through Southern Cross, and that a non standard stock item, the liner for the 45 kL tank, would be available. The cost to replace copper pipe work and services in houses is very dependant on the individual needs of the client and so is difficult to estimate. For this report it was assumed that exposed polybutylene pipework would replace the copper and that the copper would remain in place. Also it was assumed that ceramic ball quarter turn taps would be used throughout the houses and ranger station building. To estimate the cost of reticulating power to a bore site :Lt was assumed that SinCE) the site is within Kakadu National Par}" that the reticulation ~lould need to be underground and all excavated areas restored to original condition. Similar assumptions were made for estimating the cost of water reticulation. It wa" also 005r.lJ