High levels of arsenic were found in two brands of bottled water sold at Whole Foods, Target and Walmart, the Center for Environmental Health in California says.
The nonprofit group found that the brands Penafiel, owned by Keurig Dr. Pepper, and Starkey, owned by Whole Foods, contain levels of arsenic that are higher than tap water and violate California guidelines, USA Today reported.
High levels of arsenic can cause reproductive damage and cancer, and products that violate recommended state levels of arsenic must carry a warning, according to California law.
Research also shows that arsenic can cause hormone disruption and organ damage, especially in children.
Earlier this year, Consumer Reports released findings that the same brands of bottle water contained nearly double the federal limit of arsenic in water, USA Today reported.
The U.S. Food and Drug Administration has not recalled either brand of bottled water.
Whole Foods and Keurig Dr. Pepper did not respond to requests for comment from USA Today.