Images

Chromophoric (colored) Dissolved Organic Matter (CDOM) (left) and Tryptophan (right) sensors.

Native birds resting on marker buoys in Brownlee Reservoir, Idaho.

Draining overlying water from sedimentation sampler at Brownlee Reservoir, Idaho.

Conduit associated with stream gage at Menomonee at 16th Street in Milwaukee (04087142).

USGS scientists use a backpack-mounted electrofishing device to sample fish communities in a small and shallow Milwaukee-area stream.

A USGS hydrologist documents a flooded street near the Sugar River in Verona, Wisconsin. This image was taken after the area received near-record rainfall on August 20, 2018.

An example stream reach of Underwood Creek’s channel in 2018 after rehabilitation.

Custom-designed, automated, large-volume virus water sample filtration and collection system at Underwood Creek, WI.

Surficial sediment collection on Wilson Park Creek, Milwaukee, WI.

Sunset on the Milwaukee River at Estabrook Park.

Bedload sample collected from the Durand bridge.

View of Durand Bridge and sampling crew from boat during multibeam bathymetry survey.

Example excitation-emission spectra from analysis of raw wastewater and stream samples using a laboratory-based instrument.

A USGS scientist collecting a discrete water-quality sample.

U.S. Geological Survey scientists, collecting oil from wells at the National Crude Oil Spill Fate and Natural Attenuation Research Site near Bemidji, Minnesota. 

Little Muskego Lake, WI sediment core mounted on sediment extrusion device.

USGS scientist inspects three sediment cores from Lake Mendota, WI prior to sediment extrusion.

0.50 cm section of lake sediment from Lake Mendota, WI.

USGS scientists prepare to sample lake bed sediment on Lake Mendota, WI.

Is this cemetery haunted? Probably not, but there could be tiny things moving beyond the grave. The USGS sampled groundwater downhill of Mt. Hope Cemetery in Lansing, Michigan, to find out if materials associated with decomposition and burial processes could affect groundwater quality near a cemetery.

Is this cemetery haunted? Probably not, but there could be tiny things moving beyond the grave. The USGS sampled groundwater downhill of Mt. Hope Cemetery in Lansing, Michigan, to find out if materials associated with decomposition and burial processes could affect groundwater quality near a cemetery.