What happens when a listed chemical is discharged into a source of drinking water?
Proposition 65 Prohibits California businesses from knowingly discharging a “significant” amount of a listed chemical into a “source of drinking water.” “Source of drinking water” is very broadly defined as “either a present source of drinking water or water which is identified or designated in a water quality control plan adopted by a regional board as being suitable for domestic or municipal uses.” A “significant” amount is any detectable amount, unless the discharger can show that the amount would meet the “no significant risk” or “no observable effect” test for carcinogens and developmental toxins, respectively.
