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Upper Midwest Water Science Center images.

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ELISA analysis plates prepared for cyanotoxin analysis, with labeled sample tubes in the background
Enzyme-linked immunosorbent assay (ELISA) plates prepared for cyanotoxin analysis
Enzyme-linked immunosorbent assay (ELISA) plates prepared for cyanotoxin analysis
Enzyme-linked immunosorbent assay (ELISA) plates prepared for cyanotoxin analysis

Enzyme-linked immunosorbent assay (ELISA) plates prepared for cyanotoxin analysis, with labeled sample tubes in the background. ELISA is a laboratory technique used to detect and quantify specific antibodies, antigens, proteins, or hormones in biological samples.

Enzyme-linked immunosorbent assay (ELISA) plates prepared for cyanotoxin analysis, with labeled sample tubes in the background. ELISA is a laboratory technique used to detect and quantify specific antibodies, antigens, proteins, or hormones in biological samples.

Rotary evaporation system set up in laboratory fume hood
Rotary evaporation system set up in laboratory fume hood
Rotary evaporation system set up in laboratory fume hood
Rotary evaporation system set up in laboratory fume hood

Rotary evaporation system used to evaporate methanol from plant extracts, concentrating the sample so crystals containing cyanotoxins can form on the glassware.

Closeup of crystals containing extracted cyanotoxins forming on the glassware during extraction process
Crystals containing extracted cyanotoxins forming on glassware
Crystals containing extracted cyanotoxins forming on glassware
Crystals containing extracted cyanotoxins forming on glassware

A closeup of crystals containing extracted cyanotoxins forming on the glassware during rotary evaporation extraction process. The crystals are then resuspended and added to a sterile tube.

Rotary evaporation system set up in laboratory
Rotary evaporation system set up in laboratory
Rotary evaporation system set up in laboratory
Rotary evaporation system set up in laboratory

Rotary evaporation system used to evaporate methanol from plant extracts, concentrating the sample so crystals containing cyanotoxins can form on the glassware.

Rotary evaporation system used to evaporate methanol from plant extracts, concentrating the sample so crystals containing cyanotoxins can form on the glassware.

Outreach materials on a USGS table on display at a career fair
Outreach materials on display at a career fair
Outreach materials on display at a career fair
Outreach materials on display at a career fair

A day at the University of Wisconsin-Milwaukee School of Freshwater Sciences career fair! Staff and students learned about USGS with career cards, a USGS poster and field work equipment including: a churn splitter (back left corner), a peristaltic pump (back right corner) and a solid phase adsorption toxin tracking (SPATT) sampler (front right corner).

A day at the University of Wisconsin-Milwaukee School of Freshwater Sciences career fair! Staff and students learned about USGS with career cards, a USGS poster and field work equipment including: a churn splitter (back left corner), a peristaltic pump (back right corner) and a solid phase adsorption toxin tracking (SPATT) sampler (front right corner).

Hydrologist sits behind a USGS table at a career fair
Hydrologist shares information about the USGS at a career fair
Hydrologist shares information about the USGS at a career fair
Hydrologist shares information about the USGS at a career fair

Hydrologist Hailey Trompeter shares information about the USGS at the University of Wisconsin-Milwaukee School of Freshwater Sciences career fair.

USGS employees smile while standing behind a booth at a conference
USGS Web Informatic and Mapping team host booth at the ESRI Federal GIS Conference 2026
USGS Web Informatic and Mapping team host booth at the ESRI Federal GIS Conference 2026
USGS Web Informatic and Mapping team host booth at the ESRI Federal GIS Conference 2026

Members of the USGS Web Informatic and Mapping (WIM) team host a booth at the ESRI Federal GIS Conference 2026, in Washington, DC.

17 people stand in a row at a conference, smiling for the camera
USGS attendees at the ESRI Federal GIS Conference 2026
USGS attendees at the ESRI Federal GIS Conference 2026
USGS attendees at the ESRI Federal GIS Conference 2026

USGS attendees at the ESRI Federal Geographic Information Systems (GIS) Conference in February 2026, in Washington, DC.

Continuous water quality site with Seabird SUNA, GreenEyes NULAB and EXO3 YSI Sonde 
Continuous water quality site at Clinton River at Moravian Drive at Mt. Clemens, MI - USGS-04165500
Continuous water quality site at Clinton River at Moravian Drive at Mt. Clemens, MI - USGS-04165500
Modern Milwaukee skyline with the Milwaukee Art Museum's white, wing-like brise soleil prominently displayed on waterfront
Milwaukee Harbor and Art Museum on an early autumn day
Milwaukee Harbor and Art Museum on an early autumn day
Milwaukee Harbor and Art Museum on an early autumn day

Modern Milwaukee skyline with the Milwaukee Art Museum's white, wing-like brise soleil prominently displayed on the Milwaukee Harbor.

Watercolor and ink painting depicting117 species of plants near a mine site in northern Arizona
Floral Heritage
Floral Heritage
Floral Heritage

Painting (watercolor and ink) depicting the 117 species of plants found in and around a mine site that are utilized by the tribal community in northern Arizona.

Painting (watercolor and ink) depicting the 117 species of plants found in and around a mine site that are utilized by the tribal community in northern Arizona.

A USGS technician in a bright green safety jacket takes a photo of a flooded river
Field Crew at Little Menomonee River in Milwaukee, Wisconsin at streamgage 04087070 after flood
Field Crew at Little Menomonee River in Milwaukee, Wisconsin at streamgage 04087070 after flood
Field Crew at Little Menomonee River in Milwaukee, Wisconsin at streamgage 04087070 after flood

A USGS technician in a bright green safety jacket takes a photo of a flooded Little Menomonee River at Milwaukee, Wisconsin, after a flood in August 2025.

Little Menomonee River at Milwaukee, WI - USGS-04087070

https://waterdata.usgs.gov/monitoring-location/USGS-04087070/

A bright orange acoustic Doppler current profiler takes a streamflow measurement in a flooded stream
ADCP measurement at 04087088 Underwood Creek after flooding
ADCP measurement at 04087088 Underwood Creek after flooding
ADCP measurement at 04087088 Underwood Creek after flooding

An acoustic Doppler current profiler (ADCP) device takes a streamflow measurement at streamgage 04087088 Underwood Creek, near Milwaukee, Wisconsin after a flood event in August 2025.

An acoustic Doppler current profiler (ADCP) device takes a streamflow measurement at streamgage 04087088 Underwood Creek, near Milwaukee, Wisconsin after a flood event in August 2025.

Brown floodwaters swirling in foreground with green trees in background
Flooding at streamgage 04087120 Menomonee River in Wauwatosa, Wisconsin
Flooding at streamgage 04087120 Menomonee River in Wauwatosa, Wisconsin
Flooding at streamgage 04087120 Menomonee River in Wauwatosa, Wisconsin

Floodwaters swirl in the foreground and trees peek up in the background, during flooding of the Menomonee River in Wauwatosa, Wisconsin in August 2025, at streamgage 04087120.

https://waterdata.usgs.gov/monitoring-location/USGS-04087120/

Scientist takes a water sample from a glacial lake in Alaska
Collecting a surface water sample from Grewingk Glacer Lake in Alaska
Collecting a surface water sample from Grewingk Glacer Lake in Alaska
Collecting a surface water sample from Grewingk Glacer Lake in Alaska

Hydrologist Laura Flucke collects a surface water sample from Grewingk Glacer Lake in Alaska to understand glacial inputs of mercury.

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