The federal government has approved new rules on mercury in California waterways... San Francisco Baykeeper's Erica Maharg says with the new federally approved water quality criteria, regional water boards throughout the state will have to identify which waterways people are using to catch fish.
"And then once that use is recognized, they will have to make plans to ensure that the fish people eat is safe."
Including plans for reducing pollution and setting goals to make sure those reductions are met.
"We have many Californians around the bay who are not tribal members but feed their families from the bay waters and we need to make sure that those families are protected when they do that," says Maharg.
The EPA says the new rules set mercury limits in fish tissue.