How pesticides, road salt threaten Maine’s water supply

MAINE MONITOR • January 14, 2024

Salt has been found to significantly reduce winter car crashes. But the amount of it we’re using, coupled with leaking old septic systems and an increased use of fertilizers and pesticides to kill ticks and mosquitoes and manage invasive plants, are among the greatest threats to the state’s future water supply, said Ryan Gordon, a hydrogeologist with the Maine Geological Survey.