Collecting a water-quality sample for the USGS Regional Stream Quality

Hydrologic Technician Denis Scanlon removes a Pankow sampler from Lincoln Creek, in Milwaukee, Wisconsin, as USGS Hydrologist Dave Saad assists. High waters make the job particularly challenging.

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.