其实很简单: (sorry have to type in English to save time)
wastewater fixed charge, decreased by 426-190 = $236
wastewater unit price charge, increased from 0 to 2.281/kl
so if the wastewater unit = 236/2.281 = 103.46KL then there is no difference.
wasterwater unit = 78.5% of the water volume
so the water = 103.46/78.5% = 131.79KL
each month it is about 131.78/12 = 11KL.
each month the cost will be about 50.20- (in the past it is about 150/ quarter)
If your usuage is double of this (ie 22KL per month), you will pay extra $236 a year
if your usuage is half of this (ie 5.5kl per month), you will save $118 a year.
作者: NewLynnHse 时间: 2012-8-22 11:44:22
嗯。。。跟西区差不多作者: myself2662 时间: 2012-8-22 12:42:25
不愧是analyst啊。算出breakeven point啦。我家的是7.9kl per month, 省钱了。作者: zsy_az 时间: 2012-8-22 13:50:26
This calculation is not correct - Did you ever see your council rates decreased? My rates from 2009 were increased from 286, 294, 309, 328 to 340, which means the rates are increased normally. Overall it means you need to pay 2.281%*78.5% = 1.79% per KL extra plus $190 pa for your water use.
We are all fooled.作者: qhxue 时间: 2012-9-4 03:55:38
This is a kind of swindle played by the council - something like 朝三暮四 or more like 朝二暮四?