Source of VOCsVOCs (Volatile Organic Chemicals) pose a possible health risk because many of them are known carcinogens. Volatile organic chemicals are man-made, therefore the detection of any of them indicates that there has been a chemical spill or other incident. Volatile organic chemicals regulated under the Safe Drinking Water Act of 1986 are listed below.
Volatile Organic Chemicals (US EPA MCL-mg/l)
Carbon tetrachloride (0.005)
Dichloroethane (ethylene dichloride) (0.005)
Vinyl chloride (0.002)
Methylene chloride (dichloromethane) (0.005)