Strategic Business Plans for Water Supply and Sewerage
Strategic Business Plans for Water Supply and Sewerage
Strategic Business Plans for Water Supply and Sewerage
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2.1.2 Coffs Harbour<br />
Coffs Harbour's water supply serves approximately 29,230 households, between Corindi in the<br />
north, Sawtell/Toormina in the south.<br />
To ensure the best quality water is delivered to its water customers Coffs Harbour <strong>Water</strong> takes the<br />
multi-barrier approach which comprises 7 steps:<br />
1. Catchment Management<br />
2. Controlled Abstraction of raw water at Cochranes Pool from the Orara River <strong>and</strong> from<br />
the Nymboida River at Nymboida Weir<br />
3. Aeration in Karangi <strong>and</strong> Shannon Creek Dams<br />
4. Raising ph <strong>and</strong> alkalinity<br />
5. Karangi <strong>Water</strong> Treatment Plant using dissolved air floatation (DAF) <strong>and</strong> filtration<br />
6. Fluoridation<br />
7. Chlorine <strong>and</strong> UV disinfection<br />
(Source: http://www.coffsharbour.nsw.gov.au/places-<strong>for</strong>-living/drinking-water-supply/watertreatment/Pages/drinking-water-treatment.aspx,<br />
accessed 19 Oct 2011).<br />
The <strong>Water</strong> Filtration Plant at Karangi was officially opened on 9 June 2009. The DAFF Plant is<br />
located on Upper Orara Road, Karangi. The location of the plant was chosen following an<br />
extensive selection process that covers social, environmental <strong>and</strong> financial issues. Detail<br />
in<strong>for</strong>mation about the plant is in Council’s website (http://www.coffsharbour.nsw.gov.au/places<strong>for</strong>-living/drinking-water-supply/water-treatment/Pages/DAFF-plant.aspx,<br />
accessed 19 Oct 2011).<br />
2.1.3 Coramba<br />
About 240 households in Coramba are supplied with water from a high level reservoir located<br />
above the village. <strong>Water</strong> from the Regional <strong>Water</strong> <strong>Supply</strong> Pipeline is disinfected <strong>and</strong> then<br />
pumped to the reservoir, which stores about 0.45 megalitres of water.<br />
The water from the Regional <strong>Water</strong> <strong>Supply</strong> Pipeline is sourced from the Nymboida River, or is<br />
back-fed from Karangi Dam, when water quality from Nymboida system deteriorates.<br />
Coffs Harbour <strong>Water</strong> plans to connect the village of Coramba to the water supply from the<br />
<strong>Water</strong> Treatment Plant at Karangi, which also supplies all the drinking water <strong>for</strong> Coffs Harbour, by<br />
the end of 2014.<br />
May 2012<br />
HydroScience Consulting<br />
Coffs Harbour City Council <strong>Strategic</strong> <strong>Business</strong> Plan Page 13
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