While spaying is traditionally recommended for kitties between 4 and 6 months of age, spaying as young as 8 weeks old is considered safe, according to Cat Channel.
The national drinking water standards state that the maximum residual amount of chlorine is 4 mg/L. Untill recently the USA used chlorine gas extensively for wastewater treatment. Today, the use of chlorine has been forced back.
The chlorine is put in there exactly in order to make it safe to drink by killing germs. If tap water is not chlorinated, it can mean one of two things: 1  either the place has no regulations concerning germ counts in tap water and whether it's safe to drink is basically up to luck.