New water restriction tariffs hit Cape Town: what you need to know

[air]

Wonderful - just a pity we are using 600 million litres a day, and by May that 120 million litres will be all we have.

How did you arrive at that daveza?

ZeroDay - 13.5%, therefor 3.5% till 10% where it becomes difficult to actually extract(thought they will most definitely draw that down further-source, Tom Brown - legend!). So let us look at that 3.5% - approx. 30B litres of water, so assume 4M peeps * 25l, gives us 100m litres per day, so dammit, assume 250M litres per day(and I'm being overly generous), still gives us 120 days, so why the panic?

 

[Fulcrum29]

.

The 3 points are obvious, but the local government should also be held accountable. No, they cannot blame de Lille. Many people are pulling out many studies done over the past 20+ years, but a water crunch was predicted by 2013. Look, the blame game is over, but it is continued in politics.

This is rich,

This is not a finger pointing exercise, it is about ensuring that the constitutional rights of citizens and ratepayers are fought for and protected.

anyway.

Under emergency circumstances, the province should have been declared an emergency months ago by the national government on which the local government may have pursued legal avenues to remedy such a case. The tender system must be abolished under emergency circumstances.

Has the private sector been approached to assist?

There have been extensive and ongoing discussions with the private sector, by both the City and the Province. Both governments have gone out of their way to thoroughly look into augmentation solutions and a range of other offers of assistance.

It needs to be understood that procurement of goods and services is governed by complex legislation. The City, in particular, has sought to fast-track tender processes wherever possible – within the confines of the law.

I remember when GrahamTek approached the city in May 2017 with a proposition when the city was more open to desalination.

https://www.iol.co.za/weekend-argus/news/city-of-cape-towns-water-bungle-11575998

Read the article in the link.

Then,

When will we be given the plan for Day Zero?

The City of Cape Town and the Western Cape Provincial Government are currently in the process of finalising the complex logistical details required for Day Zero. This is an intricate and complex process that requires a high level of detail.

The City of Cape Town will be hosting a press conference to communicate the details of these plans with residents within the next week, and thereafter weekly updates will be provided to the public.

The City also has a highly capacitated media and communications department who are communicating with media organisations daily as the plans develop.

when?

 

[daveza]

The taps get turned off when the dam average percentage reaches 13.5%.

Theewaterskloof has 2 or 3 weeks before it reaches 10%.

The remaining 3.5% from all the dams will be used for hospitals and the CBD and the informal settlements and to supply the collection points.

When that 3.5% is gone all we have is what they pull from the aquifers and some desal plants.

I would guess that about a week before Day Zero everyone who has a jojo tanks will be filling them up from the taps which will just bring DZ a few days closer.

We may get some rain but hardly worth talking about.

 

[air]

The taps get turned off when the dam average percentage reaches 13.5%.

Theewaterskloof has 2 or 3 weeks before it reaches 10%.

The remaining 3.5% from all the dams will be used for hospitals and the CBD and the informal settlements and to supply the collection points.

When that 3.5% is gone all we have is what they pull from the aquifers and some desal plants.

I would guess that about a week before Day Zero everyone who has a jojo tanks will be filling them up from the taps which will just bring DZ a few days closer.

We may get some rain but hardly worth talking about.

run the numbers daveza, 30B litres, at 200M per day, which is !double!, gives us 150 days - 5 months - deep in Sep/Oct

what am i missing, please post numbers...

 

[daveza]

30B litres, at 200M per day

Maybe I'm missing something - we are using 600 million litres a day, not 200 million.

 

[The_Right_Honourable_Brit]

Maybe I'm missing something - we are using 600 million litres a day, not 200 million.

Yes, but when the taps are turned off, it won't be anything near 600m a day.

You also keep forgetting in your calculations that the agricultural sector are about to use up their quota.

 

[daveza]

Yes, but when the taps are turned off, it won't be anything near 600m a day.

Yup, but that is close to three months away.

 

[air]

Maybe I'm missing something - we are using 600 million litres a day, not 200 million.

daveza, what part about dayzero are you missing? You follow this thread with vigour, not? - 4M peeps @ 25l per day...

 

[daveza]

Redo your calculations but using 600 million , not 200 million - how long does the water last ?

 

[air]

Redo your calculations but using 600 million , not 200 million - how long does the water last ?

why would you be using 600M l per day when we hit dayzero daveza?

 

[Geoff.D]

I would bet my salary he is wrong.

If it all depends on everyone cutting down, forget it.

I will send you a bank account details just in case!

 

[air]

hey, I am first in queue, easy money

 

[daveza]

why would you be using 600M l per day when we hit dayzero daveza?

Ah, didn't see you were talking post Day Zero.

I can't do maths so..

We have 240 200 ML in our dams now - average storage % 26.7

So of that 26.7 we deduct 13.5% - so what is 13.2% of 240 200 ML ?

That is how much we have till the taps are shut, and we are using it at 600 million litres a day.

Quite happy to be wrong...

 

[air]

Ah, didn't see you were talking post Day Zero.
I can't do maths so..
We have 240 200 ML in our dams now - average storage % 26.7
So of that 26.7 we deduct 13.5% - so what is 13.2% of 240 200 ML ?
That is how much we have till the taps are shut, and we are using it at 600 million litres a day.
Quite happy to be wrong...

.
For me daveza, apart from a few posters here, like Gordon_R, Geoff.D etc..., Tom Brown is the most definitive source of credible info, the rest is just ****ing noise imho -> https://showme.co.za/paarl/lifestyle/nature-outdoors/dams-latest-levels-winelands-and-cape-town-86/ updates every week.

 

[Geoff.D]

run the numbers daveza, 30B litres, at 200M per day, which is !double!, gives us 150 days - 5 months - deep in Sep/Oct

what am i missing, please post numbers...

Its not 200 million per day. It is 350 million per day.

 

[air]

Its not 200 million per day. It is 350 million pecday.

where do you get 350M per day at dayzero?

 

[daveza]

I read Browns predictions often but it has two flaws, IF we all save water and IF it rains.

We WON'T all save, and we got zip rain last year until June so why would that not be the case this year ?



What was the calculation of how much water we have left from my last post ?

 

[genelock]

look, we're all in denial
we've lost this game
It's over
everyone for themselves

 

[air]

I read Browns predictions often but it has two flaws, IF we all save water and IF it rains.
We WON'T all save, and we got zip rain last year until June so why would that not be the case this year ?
What was the calculation of how much water we have left from my last post ?

sorry daveza, last try from me, then somebody else can take the baton - agriculture will be greatly curtailed end of JAN18 - do you comprehend the amount of water agri uses? almost a 50/50 split.

 

[Gordon_R]

We have 240 200 ML in our dams now - average storage % 26.7

So of that 26.7 we deduct 13.5% - so what is 13.2% of 240 200 ML ?

That is how much we have till the taps are shut, and we are using it at 600 million litres a day.

Quite happy to be wrong...

Edit: Ah, I see your problem. You are assuming that the 600ml/day that the CoCT is using is the only demand on the system. That is totally wrong, and ignores the agriculture quota, as well as use by other towns from Stellenbosch and Paarl northwards.

Edit: Drawdown (including evaporation) during the week to 22 January was about 1850Ml, though this may be a statistical anomaly. See: http://resource.capetown.gov.za/doc...ity research reports and review/damlevels.pdf

Edit: From table (257549 - 244555) = 12994Ml, divided by 7 days per week

Even with maths skills, there are too many assumptions to be able to calculate properly. Agricultural demand will drop, reducing total consumption by around 40%. Domestic demand will drop, but it is impossible to say by how much. All I can tell you, is that Day Zero will not be on 12 April.

Tom Brown is the most definitive source of credible info, the rest is just ****ing noise imho -> https://showme.co.za/paarl/lifestyle/nature-outdoors/dams-latest-levels-winelands-and-cape-town-86/ updates every week.

+1