I also see a huge sudden increase of my water bill.
I get my water bill once every two months and here's what my consumption looks like
01/20/10 - 0
02/19/10 - 0
05/14/10 - 1
08/06/10 - 6
11/03/10 - 5
02/28/11 - 1
05/13/11 - 134
The house was being build till end of March 2011 so that's why there's no water usage. I didn't move into the house till early June 2011 so the water bill for May looks accurate to me.
This is a brand new house with 2 person living in there, and I have an irrigation system installed around June 10th 2010 (last year). I guess I should be kind of surprise that my last August bill is kind of low consider I watered twice a day, 15 minutes each zone and I have 5 zones.
My question would be what are the chances that my water meter was misread for the past few bills and now it is corrected? It is just mind bothering that the water meter is brand new and it is one of the that can be read wirelessly so how could it get misread?
So the reading is probably correct. Apparently they explained to me that there's a software glitch and they were misreading the last few quarters. The actual water consumption should be something like that...