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.
So don't drink unchlorinated water without boiling it first. (Since chlorine is slightly less reactive than fluorine, it is also not boiled off (boiling point of elemental chlorine is 239.11 Â°C according to one source which is probably for a compound. The one given for elemental chlorine is -34ÂºC.