Blog: California becomes first government in world to require microplastics testing for drinking water
On September 7, 2022, California became the first government in the world to require microplastics testing for drinking water, an emerging contaminant that is found throughout the environment. The State Water Resources Control Board (State Water Board) approved a policy handbook that details how it will implement a four-year plan, including testing logistics as well as how it will select the public agencies that will be required to test. Microplastics represent an emerging contaminant of concern for which there are still a number of unanswered questions.