Council Agenda - Kangaroo Island Council - SA.Gov.au
Council Agenda - Kangaroo Island Council - SA.Gov.au
Council Agenda - Kangaroo Island Council - SA.Gov.au
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The cost option for this is estimated as:<br />
WWTP / Lagoon Option<br />
3<br />
Subsidy $3,003,282<br />
<strong>Council</strong><br />
Contribution<br />
$1,252,779<br />
Total Project Cost $4,256,061<br />
This location allows for expansion, it presents a much lessor visual amenity issue as it will<br />
essentially not be overlooked either from the south or the east and is away from the town<br />
centre in an area that is not zoned for residential / rural living. The initial lagoon will be 5ML<br />
in capacity – the equivalent of a standard farmer’s turkey nest (30m2 base or 50m2 centre<br />
bank to bank). Subsequent lagoons would be installed to the rear of this in a nested fashion<br />
either of 5 or 10ML capacities – this then mitigates cost and disruption c<strong>au</strong>sed by routine<br />
liner replacement. The design is also distant from any water course (unlike the other<br />
options).<br />
The financial analysis of this option for <strong>Council</strong>’s component demonstrates that this is<br />
manageable over a 20 year timeframe with the assumption that the Annual Service Charge<br />
for Wastewater is as budgeted in 2013-14 at $562 / service. The new project is therefore<br />
self-servicing and does not impact the costs associated with the other schemes at American<br />
River, Kingscote, Parndana or Parndana East.<br />
It should be noted that any capital cost increase during final design / construction from this<br />
element of the project alone would be to <strong>Council</strong>’s cost and not picked up through a revised<br />
subsidy calculation. This is due to the Scheme being prepared to fund the “minimum” cost<br />
scheme only.<br />
It is recommended that <strong>Council</strong> adopt this design as its preferred solution and take this<br />
forward to public consultation for a period of no less than 60 days as it:<br />
Provides a wastewater solution for the heart of Penneshaw (including key<br />
commercial and public infrastructure) with a realistic level of borrowing that that<br />
<strong>Council</strong> is able to financially service from revenues generated.<br />
Provides for the possibility of organic growth (extension) of the collection network<br />
over time by providing for the ability to expand the wastewater treatment plant<br />
(WWTP) and treated water storage lagoon capacities as required.<br />
The design meets best practise guidelines<br />
Should <strong>Council</strong> adopt this design for the purposes of public consultation then we would<br />
instruct the Engineers to continue with final design and specification work, including<br />
additional geotechnical and design analysis in order that <strong>Council</strong> may receive a report<br />
confirming the suitability of the design prior to moving into the prudential review process.<br />
This will also allow the <strong>Council</strong> to commence the Development Application and Approval<br />
Process. The completion of specifications will also allow <strong>Council</strong> to run a request for interest<br />
process and test the suggested construction costs for the project as well.<br />
<strong>Kangaroo</strong> <strong>Island</strong> <strong>Council</strong> – 10 July 2013 <strong>Agenda</strong> 20