Installing a water-quality micro-sampler under high water conditions

USGS Hydrologist Heather Krempa collects a stream sample at Little Fabious River, near Monticello, Missouri, for the Regional Stream Quality Assessments.

A new U.S. Geological Survey interactive data explorer is now available to help users visualize and download data used to better understand how stream ecology is affected by chemical and physical stressors in small streams across the United States.