The Cotter Dam Enlargement – where will the Dam Wall stop, and what about the picnic area?

Peter Holland 11 August 2008 42

I was watching the telly last night, and the ad for ACTEWAGL came on, talking about the need to increase the dam size. It takes a while to sink in with me, and I have watched this ad several times, but it only just made it through the “switch off – its an ad…”

Where will the dam wall end?

Will the picnic area remain, or will it be buried under the wall?

Important stuff – best place to go in summer, seems to remain fairly cool in summer at that spot, and I would hate to lose it to a dam.

As would my daughter – she has only just found the playground….


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42 Responses to The Cotter Dam Enlargement – where will the Dam Wall stop, and what about the picnic area?
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Thumper Thumper 1:01 pm 13 Aug 08

““water” is loosely termed “anything that runs faster than dirt”, won’t be a problem for me.”

Like porridge.

RuffnReady RuffnReady 12:54 pm 13 Aug 08

peterh said :

whoops, came across this on the actew website….

http://www.actew.com.au/water2water/EnlargeCotterDam.aspx

explains as to how the cotter dam enlargement will be filled.

here is an excerpt:

“While a larger Cotter Dam will provide additional storage capacity, if water inflows to the ACT’s catchments continue at record low levels (down by almost 65 percent on average over the last six years, and 90 percent in 2006), there will be insufficient water to fill the dam.

Hence the need to consider topping up the Cotter reservoir with purified water in parallel with the Cotter Dam enlargement. These two projects combined would further enhance the security of the ACT’s water supply into the future.”

Mr Evil is right!

aaaah!

I wonder how that fits in with the Murrumbidgee Catchment Management plan, and specifically how much water Canberra can take out of the catchment/has to put back in? Our treated waste water currently flows straight back into the ‘Bidgee, so I’m betting that treated water is somehow not counted as part of the catchment, which would be a loophole that would allow the ACT to treat and recycle its water. Why is this important? Because it is unlikely that the ACT will ever be able to negotiate a bigger slice of the catchment’s supply given the myriad problems downstream.

As for those afraid of recycled water, or overwhelmed by the ‘yuck!’ factor, get over it. The technology is safe, proven, and used all over the world. I like peterh’s attitude: ““water” is loosely termed “anything that runs faster than dirt”, won’t be a problem for me.” lol

peterh peterh 11:26 am 13 Aug 08

Mr Evil said :

miz said :

‘bluegreen algae would be a dead giveaway…’ and let’s not forget typhoid, giardia, crypto etc. Yum. Not. I really would prefer dammed rain water to poo water. Hurry up with that dam, and stop wasting money on a ‘demo’ sewage processor (and those annoying ads).

Next time you are having a nice big glass of fresh, clear, clean Canberra water, try to imagine all the dead roos, wombats, birds, missing trampers, rusty car wrecks, polution, run-off from septic tanks and agricultural chemicals that end up in the Googong, Corin, Bendora and Cotter.

ah, yes.

but as i am from adelaide, where “water” is loosely termed “anything that runs faster than dirt”, won’t be a problem for me.

Mr Evil Mr Evil 10:49 am 13 Aug 08

miz said :

‘bluegreen algae would be a dead giveaway…’ and let’s not forget typhoid, giardia, crypto etc. Yum. Not. I really would prefer dammed rain water to poo water. Hurry up with that dam, and stop wasting money on a ‘demo’ sewage processor (and those annoying ads).

Next time you are having a nice big glass of fresh, clear, clean Canberra water, try to imagine all the dead roos, wombats, birds, missing trampers, rusty car wrecks, polution, run-off from septic tanks and agricultural chemicals that end up in the Googong, Corin, Bendora and Cotter.

peterh peterh 8:46 am 13 Aug 08

thumper, I was having a jape re the sensitivities about “recycled” water. half the time, with bush blocks, your water is brown. if you make a pot of tea, it is still brown. add milk, light brown.

read the book “the great boomerang”. now there was a pretty far-fetched idea, but one that just might make sense in the future…

Thumper Thumper 8:38 am 13 Aug 08

Seriously, if the sewerage was filtered through a chain of ponds containing water weeds such as bullrushes, etc, then by the time it reached the dam it would be sufficiently clean.

This is why wetlands are so important to this country and why they should be protected, Wetlands literally filter the bad stuff out of our water supplies. (In the case of our dams it’s more usually spagnum moss, but the same principle applies)

So the end outcome is that you would not be drinking sh*t.

And having said that, I’m not sure it’s actually such a good idea anyway.

Also, whatever did happen to our proposed desalinisation plant? All quiet on that front. Probably because it was such a stupid idea.

peterh peterh 8:33 am 13 Aug 08

miz said :

‘bluegreen algae would be a dead giveaway…’ and let’s not forget typhoid, giardia, crypto etc. Yum. Not. I really would prefer dammed rain water to poo water. Hurry up with that dam, and stop wasting money on a ‘demo’ sewage processor (and those annoying ads).

ah, but you missed the excerpt. The water would be a mix of both, as the catchment is no longer providing fill levels that are able to increase the levels of the dam significantly.

so…

poo water with rainwater, and who wants to see what the color will be, people complain about tannin anyway, what if it is believed to be from the mixing? brown stained water.

yum.

Thumper Thumper 8:20 am 13 Aug 08

Somehow I don’t think we’ll be contracting typhoid…

Mælinar - *spoiler alert* I've seen S04E13 Mælinar - *spoiler alert* I've seen S04E13 8:13 am 13 Aug 08

@miz – I think among the RA crowd we can drop the charade of ‘demo’. We are all enlightened enough to recognise that as soon as this thing is operational we will be drinking recycled poo courtesy of JON STANHOPE.

If he wants this to be his Coda – I think it only fair that we recognise it for what it is and name it the Jon Stanhope Memorial ‘demo’ sewage processing water treatment facility.

@Everybody – On that thought though, wouldn’t it simply be easier if we all went up to the Cotter enlargement and did our business in the dam ? You know it makes sense. They want it filled, and the water is going to get treated anyway.

Timberwolf65 Timberwolf65 2:12 am 13 Aug 08

I remember as a kid, taking the exciting walk up to the top of the dam, There was a statue type thing across the river that reminded me of a dalek from dr who, the old wooden suspension bridge… I miss it all, why must things change!!!!

miz miz 11:03 pm 12 Aug 08

‘bluegreen algae would be a dead giveaway…’ and let’s not forget typhoid, giardia, crypto etc. Yum. Not. I really would prefer dammed rain water to poo water. Hurry up with that dam, and stop wasting money on a ‘demo’ sewage processor (and those annoying ads).

mooliganbags1 mooliganbags1 8:19 pm 12 Aug 08

Can anyone remember talk of a desalination plant which pumped water over the mountains into Canberra last year or did I just imagine it?

Thumper Thumper 7:50 pm 12 Aug 08

I believe that species can swim, and run very fast…

GottaLoveCanberra GottaLoveCanberra 7:36 pm 12 Aug 08

Is an environmental impact study being done on this project?

Wouldn’t want to disturb the bearded green-eyed yellow bellied four winged amazonian blinking spotted dog bird lizard now would we?

VYBerlinaV8_the_one_they_all_copy VYBerlinaV8_the_one_they_all_copy 4:10 pm 12 Aug 08

Peak rain months in Canberra are around November, I think, so after our wet(ish) winter it will be interesting to see if we get much in the way of rain later this year.

peterh peterh 4:04 pm 12 Aug 08

ok, native wildlife floating with their legs in the air, then…

Thumper Thumper 4:01 pm 12 Aug 08

But not in winter…

peterh peterh 3:51 pm 12 Aug 08

iCanberran said :

From what I’ve read, the water in the Googong catchment, rich in farm chemicals and manure is (hopefully) far worse than anything we would be flushing into a recycling plant.

of course, if the purifying treatment went wrong, we would soon know about it. bluegreen algae would be a dead giveaway…

iCanberran iCanberran 3:31 pm 12 Aug 08

From what I’ve read, the water in the Googong catchment, rich in farm chemicals and manure is (hopefully) far worse than anything we would be flushing into a recycling plant.

miz miz 10:46 am 12 Aug 08

Mmm, sewage!

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