The nine major watersheds in San Diego County had unusually low water quality in 2015 for the second year in a row, according to an annual report released Tuesday by an environmental organization.

The continuing drought may be worsening inland water quality, while runoff pollution remains a serious problem, the San Diego Coastkeeper report says. “Our inland waters empty to the ocean,” said Meredith Meyers, the group’s laboratory coordinator. “These inland water quality problems directly impact the water quality of our beaches, too, making them less safe to swim and fish.”