Images

Close up view of a Turner C3 submersible fluorometer sensors. Multi-parameter meter with FDOM, Tryptophan, Turbidity, and Temperature sensors and central wiper.

Hydrologist Colin Livdahl conducting quarterly groundwater sampling at Twin Cities Army Ammunition Plant in mid-February, 2022.

Hydrologist Brendan Hallmark drilling a hole in the ice of the Pecatonica River, Wisconsin. USGS sticker unfocused on pole in foreground. Location is at Marintown, WI streamgage 05434500.

Pecatonica River at Martintown, Wisconsin streamgage in winter.

https://waterdata.usgs.gov/monitoring-location/05434500/

The path cleared of snow on the river contains drilled holes that are used to measure streamflow under the ice.

Geophysical survey equipment hoop on ground with people learning from SkyTEM member. In January 2021 a helicopter carried an airborne electromagnetic induction sensor over parts of northeastern Wisconsin as part of a USGS study to map the aquifers in the region.

Hydrologic technician Brendan Hallmark drills a hole in the frozen Pecatonica River at the Martintown, Wisconsin streamgage in winter.

https://waterdata.usgs.gov/monitoring-location/05434500/

Hydrologic technician Brendan Hallmark uses an ice auger to drill a hole in the frozen Pecatonica River at the Martintown, Wisconsin streamgage in winter.

https://waterdata.usgs.gov/monitoring-location/05434500/

Scientist holding cell phone reflected in water in hole drilled in the frozen Pecatonica River, Wisconsin.

James Romano holds a water sample collected at the end of Wilson Park Creek in Milwaukee, Wisconsin. The creek drains into the Kinnickinnic River, which eventually reaches the Milwaukee Estuary and Lake Michigan. Samples there are analyzed for same parameters as all the other sites.

Hydrologic Imagery Visualization and Information System (HIVIS) webcam at Jones' Island Milwaukee, Wisconsin with Hoan Memorial Bridge in background.

Map showing locations of test and control watersheds for the determination of watershed response to green infrastructure in Milwaukee, Wisconsin.

Illustration depicting phosphorus loading in shallow lakes represented by Lake Winnebago, Wisconsin.

A USGS scientist holds a sediment corer being prepared for use on Gruber’s Grove Bay on Lake Wisconsin, Wisconsin.

Green Lake is the deepest natural lake in Wisconsin. The drawing relates the water-quality response of Green Lake, with emphasis on the Metalimnetic Oxygen Minima, to total phosphorus loading from its watershed. The drawing depicts data collection, analysis, modeling, and real-time monitoring.

Part of a series of small inset drawings, this is of a sign located near Horn Creek. The Creek is contaminated with high levels of Uranium. Sign states: "Horn Creek, Danger, Contaminated Water, Do Not Drink! Water in Horn Creek exceeds EPA health standards for radioactivity"

Road salt de-icer left over from an ice event on Milwaukee Riverwalk boardwalk near East Clybourn Street, looking south towards highway 794.

Part of a series of small inset drawings, this is a top view of Havasupai Falls, its aquamarine colored water is highly recognizable and it is a site of tribal, cultural, and recreational significance to the greater Grand Canyon region.

Created for a fact sheet on the implications of breccia pipe Uranium mining in the Grand Canyon region, this drawing packs a significant amount of information into a single image.

This is a landscape photo of a wildfire burn site located in Oregon, USA. Photo taken in November of 2021.

Ed Wiggins, Mariah Hipsher, and Lucas Stevens check sensors in the Sloughs on the Lake Superior shoreline, at the Mashkiiziibii (Bad River) Reservation.

Scientist Emeritus Dave Krabbenhoft collecting water sample at edge of Green Lake, Minnesota (Kandiyohi County).