"Petzl" <petzlx@[EMAIL PROTECTED]
> wrote in message
news:idm9u3hc9hi9fh7ip7gdk5uosg91of2dbi@[EMAIL PROTECTED]
> On Fri, 21 Mar 2008 22:50:12 GMT, "Mango" <Fakemail@[EMAIL PROTECTED]
>
> wrote:
>
>>Well look at a map. The proposed Welcome Reef dam is on the upper
>>shoalhaven. All of the water that falls in its catchment flows through
>>Tallowa dam. Water that flows through it can then be diverted to the
>>Upper
>>Nepean system. Building this dam doesn't change the rainfall levels.
We
>>have enough dam storage, what we need is to increase our other ways of
>>obtaining water supply. We are doing this through recycling and
>>desalination.
>>
> <http://www.smh.com.au/articles/2004/06/09/1086749777408.html>
>
> Tallowa regularly overflows and as a Labor party knee jerk are
> claiming (downplaying) to raise Tallowa Dam walls in effort to hold
> the overflows (Welcome Reef is North of Tallowa)
>
South actually, but it is upstream. And you are correct, Tallowa
regularly
overflows. We could salvage its water much better but people that live in
Nowra seem to think that its their water alone. More pumping occurs now
than used to be the case and it will contiinue at an increased rate. The
best solution to harvesting water from the Shoalhaven system is to pump
water to the upper Nepean. We have enough storage in the Nepean system.
By
pumping more from the Shoalhaven we can get a lot of extra water supply
without the expense of building a new dam.
> John Brown, a retired civil engineer and hydrology specialist who
> carried out the original environmental impact study on the Welcome
> Reef dam in 1980, says the project could be constructed in stages and
> carried out in conjunction with Sartor's Shoal- haven plans in order
> to safeguard the city's future water supply. "The advantage [of the
> dam is] that it would store water in time of high flows, enabling it
> to be released later to replenish Warragamba. Despite opposition from
> some greens, I believe that there would not be any detrimental
> environmental consequences."
>
> But, unlike the Government, Brown is open to all options, as long as
> proper feasibility studies are conducted comparing costs and benefits.
> "There should be an open and public debate in which the pros and cons
> of all the alternatives are clearly presented so that a rational and
> economic choice can be made." That's sounds too much like common
> sense.
I don't believe Brown sounds very open to new ideas based on what you've
posted. He seems wedded to the work he did nearly 30 years ago.
>
> Petzl
> --
> "When Governments fail to enforce law and order, common folk take it
upon
> themselves to do so."
> Brash
|
