Question 1

What is the EPA limit for chlorine in drinking water?

Accepted Answer

The EPA Maximum Contaminant Level (MCL) for chlorine is 4 ppm. Public water systems must keep chlorine below this level.

Question 2

What are the health effects of chlorine in drinking water?

Accepted Answer

Chlorine has been used to disinfect US drinking water since 1908, and the CDC considers water chlorination one of the greatest public health achievements of the 20th century, preventing millions of cases of waterborne disease. The EPA MRDL

Question 3

Where does chlorine in drinking water come from?

Accepted Answer

Chlorine in drinking water comes from intentional addition at water treatment plants. Approximately 98% of US public water systems use some form of chlorine-based disinfection. Water utilities add chlorine (as sodium hypochlorite, calcium h

Question 4

How do I remove chlorine from my drinking water?

Accepted Answer

Chlorine is effectively removed by: Activated Carbon. Look for NSF-certified filters that explicitly list chlorine reduction.

Chlorine in Drinking Water - EPA MCL, Health Effects & Removal