U.S. Geological Survey scientists find lake levels in the Twin Cities, including White Bear Lake, vary largely based on geology and land use.

A new submersible vehicle, ROV Yogi, is helping scientists with the Global Foundation for Ocean Exploration study Yellowstone Lake hydrothermal vents.

The National Oceanic and Atmospheric Administration has completed the first long-term deployment of ESPniagara, a robot measuring microcystin in real time.

A new water quality monitoring buoy deployed near Milwaukee’s Bradford Beach is helping to forecast bacteria levels for beach managers.