How much water intake should a 1 yr old have in a day?

When my daughter was 1 year old, I would give her about 50 to 60ml after each feed in her sippy cup. Sometime she finishes it, sometime she doesn't. Sometimes she doesn't even want it at all. I didn't really measure her actual total intake properly, because she was already eating well and drinking her milk well. Unless she is thirsty before her feeding time or if she had food that is too heaty or dry, I will not give her water. Here is a link that you can read more on: http://www.babycenter.in/x1016988/how-much-water-should-my-toddler-drink-every-day