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.
Sulfates in drinking water currently has a Secondary Maximum Contaminant Level (SMCL) of 250 ppm (mg/l). At this level or above, sulfates can cause diarrhea and resulting de-hydration. This condition is most severe in infants, the elderly, and people with other illnesses.