Images

USGS hydrologist Tim Cowdery titrates water alkalinity in a mobile sampling van using an electronic field form.

Beach-ridge prairie at Glacial Ridge National Wildlife Refuge

USGS technician Jody Hulne collects a groundwater nutrient sample at Glacial Ridge National Wildlife Refuge.

Photo of a newly installed fixed-mount thermal infrared camera installed on the USGS Platte Kill at Dunraven NY streamgage in the Neversink River watershed.

USGS groundwater well (Ma-Wkw 2R) in Wayland, Massachusetts with holiday decorations.

Hydrologic technician performing an electric tape down measurement of a real-time recording groundwater well station while showing some holiday spirit. The site ID is: 415546071474701 RI-BUW 395 located in Burrillville, Rhode Island.

New hydrotech Sam Matschek takes WWG reading on Wabash River New Harmony, Indiana streamgage ID 03378500. 

Pamela Reilly, Hydrologist

Hydrologic Technician, Brady Long, performs routine water quality inspection of streamgage 0217206935 Cooper River in Charleston, SC. Cooperator/funding provided by the US Army Core of Engineers. 

Hydrologic Technician, Brady Long, performs routine water quality inspection at the Cooper River, South Carolina. 

USGS gage 330428079214800 Skrine Creek Near McClellenville, SC

Did you know the USGS has been studying groundwater since we were founded? USGS first measured the groundwater level at the well in this photo in 1918, over one hundred years ago! How often water levels are measured at a site in the USGS groundwater monitoring networks varies, depending on the scientific purpose of the measurement.

Did you know the USGS has been studying groundwater since we were founded? USGS first measured the groundwater level at the well in this photo in 1918, over one hundred years ago! How often water levels are measured at a site in the USGS groundwater monitoring networks varies, depending on the scientific purpose of the measurement.

This is a view of a USGS surface water stream gage that contains equipment to monitor discharge at the Williamson River below the Sprague Ruver in Chiloquin, Oregon. The gage house contains a historic stilling well and a device that records the level of water. It also has a water temerature sensor and a turbidimeter.

Skylar Smith and Jim Duncker (Central Midwest Water Science Center) paddle across the Sandusky River, Ohio to collect bathymetry data for use in a hydraulic model.

USGS employee in canoe

Hydrologic Technician Sharon Mulready checks equipment on electrical power tower and site 372750122012701 Coyote Creek near Alviso Slough. The tidal gage is located at the confluence of Coyote Creek and Alviso Slough, and is accessible only by boat. The estuary is fed by the Sacramento and San Joaquin Rivers, and various tributaries in the Central Valley.

The World's Water - Distribution of Earth's Water

WY-MT Water Science Center 2019 all-hands meeting

William Wright (Left) and Ben Holman (Right) are installing an outside staff gage for this new station. Phelps Creek Below Unnamed Trib Near Index, WA ID 12147680.

USGS gage 10351600 Truckee River Below Derby Dam near Wadsworth, NV