Auckland Dam Levels

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networkn

Networkn
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#289789 29-Sep-2021 13:04

So, we have hit 85% Full and are only 5% off the historical average. More rain is forecast over the next 10 days, which will likely get us to nigh 90%.

Water restrictions remain.

Is it easy to find out where we would be without the Waikato supply being increased?

I can't recall how long that supply will remain in place for, so I am wondering what our longer term outlook is?

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#2786243 29-Sep-2021 13:19

Great website:

https://aucklandwatersupply.co.nz/

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ghettomaster

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#2786250 29-Sep-2021 13:25

What the heck is a gigalitre? I hope it’s 1024 * 1024 * 1024 litres but I’d imagine it’s not.

When I’m dealing with data, I work in GB figures all the time but I never really think of them as billions of bytes, so when I see Gigalitre, it’s really off-putting. Billions of litres makes so much more sense.

wellygary

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#2786258 29-Sep-2021 13:41

ghettomaster: What the heck is a gigalitre? I hope it’s 1024 * 1024 * 1024 litres but I’d imagine it’s not.

When I’m dealing with data, I work in GB figures all the time but I never really think of them as billions of bytes, so when I see Gigalitre, it’s really off-putting. Billions of litres makes so much more sense.

IT is the outlier in using a binary result as opposed to a decimal measure,

No one really expects a kg to be 1024 grams, or do they ?

shk292

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#2786316 29-Sep-2021 13:53

wellygary:

IT is the outlier in using a binary result as opposed to a decimal measure,

No one really expects a kg to be 1024 grams, or do they ?

It's to allow for evaporation and leakage

I suppose you could use Megatonne but that has connotations

Zeon

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#2786340 29-Sep-2021 14:12

ghettomaster: What the heck is a gigalitre? I hope it’s 1024 * 1024 * 1024 litres but I’d imagine it’s not.

When I’m dealing with data, I work in GB figures all the time but I never really think of them as billions of bytes, so when I see Gigalitre, it’s really off-putting. Billions of litres makes so much more sense.

It makes total sense? 1 litre = 1,000 ml is a common measurement we often use....

I just installed a 500 billion byte SSD..... gigabyte sounds much nicer :)

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Inphinity

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#2786400 29-Sep-2021 15:22

ghettomaster: What the heck is a gigalitre? I hope it’s 1024 * 1024 * 1024 litres but I’d imagine it’s not.

When I’m dealing with data, I work in GB figures all the time but I never really think of them as billions of bytes, so when I see Gigalitre, it’s really off-putting. Billions of litres makes so much more sense.

Giga is an SI prefix for 10e9, so it means Billions. Blame binary for the abnormality that results in the argument about GB vs GiB.

ghettomaster

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#2786409 29-Sep-2021 15:46

Inphinity:
ghettomaster: What the heck is a gigalitre? I hope it’s 1024 * 1024 * 1024 litres but I’d imagine it’s not.

When I’m dealing with data, I work in GB figures all the time but I never really think of them as billions of bytes, so when I see Gigalitre, it’s really off-putting. Billions of litres makes so much more sense.

Giga is an SI prefix for 10e9, so it means Billions. Blame binary for the abnormality that results in the argument about GB vs GiB.

Ok I definitely just got schooled there. I will now quite happily admit that I did presume “giga” only refers to computer data and was quite wrong.

Edit for typo.

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networkn

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#2787119 30-Sep-2021 16:36

Not sure any of that answers my questions. :)

RunningMan

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#2787179 30-Sep-2021 16:51

All the answers seem to be on the Watercare website, just not in one place or easy to find.

50 Million litres/day from Waikato (consent up to 175) https://www.watercare.co.nz/Water-and-wastewater/Water-supply-situation/Boosting-supply

Target usage 410 ML / day (379 actual) https://www.watercare.co.nz/Water-and-wastewater/Where-your-water-comes-from/Auckland-s-dam-levels

Also https://www.watercare.co.nz/Water-and-wastewater/Where-your-water-comes-from/Rivers

evilengineer

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#2787245 30-Sep-2021 17:40

The metric system changes prefix (kilo, mega, giga etc.) in base 1000 not 1024!

Should really be using cubic metres for volumes that large.

1 Gigalitre -> 1e09 Litres = 1,000,000 m3 or a 1m deep square km of water.

neb

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#2787268 30-Sep-2021 19:21

mentalinc:
Great website:

https://aucklandwatersupply.co.nz/

I use this one, the one annoying thing is that they only update the comparison graph at the end of every month.

shk292

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#2787337 30-Sep-2021 20:25

They should really be using Register Standard Units, which for volume are grapefruit or Olympic Swimming Pools

https://www.theregister.com/Design/page/reg-standards-converter.html

Jase2985

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#2789443 4-Oct-2021 21:24

Given that the Waitaks have been full for a while now, could we not be using more water from them as they seem to fill faster to help the hunuas recover?

and with the hunua's could water not be transferred or used from the full ones?

How hard would it be to make extra reservoirs in the hunua's or waitaks?

neb

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#2789445 4-Oct-2021 21:26

Jase2985:
Given that the Waitaks have been full for a while now, could we not be using more water from them as they seem to fill faster to help the hunuas recover?

We're already doing this, Watercare preferentially draws water from the Waitakeres dams.

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#2789446 4-Oct-2021 21:31

doesn't appear they can do it fast enough as they are always full.

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