Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
All items in this gallery are considered public domain unless otherwise noted.
A map of Ohio showing the locations of recreational areas sampled in the 201314 study. Modified from figure 1, Francy and others, 2016.
A map of Ohio showing the locations of recreational areas sampled in the 201314 study. Modified from figure 1, Francy and others, 2016.
Diatom mat used during a feeding experiment to study the dietary uptake of uranium by mayflies
Diatom mat used during a feeding experiment to study the dietary uptake of uranium by mayflies
The new Damage Assessment and Restoration Tracking System (DARTS) Web site provides an interactive map that identifies Natural Resource Damage Assessment and Restoration (NRDAR) cases. The shapes of icons represent incident type; icon color represents the status of the case.
The new Damage Assessment and Restoration Tracking System (DARTS) Web site provides an interactive map that identifies Natural Resource Damage Assessment and Restoration (NRDAR) cases. The shapes of icons represent incident type; icon color represents the status of the case.
USGS scientist sampling tap water from a public water supply.
USGS scientist sampling tap water from a public water supply.
Before and after photos of Fourmile Creek near Ankeny, Iowa, showing a wastewater outfall from a wastewater treatment facility (WWTF). The top photo is the creek before the WWTFwas closed, and the bottom photo is after the WWTF was shutdown. After the shutdown flow in the creek decreased significantly. Photo credits: Laura E.
Before and after photos of Fourmile Creek near Ankeny, Iowa, showing a wastewater outfall from a wastewater treatment facility (WWTF). The top photo is the creek before the WWTFwas closed, and the bottom photo is after the WWTF was shutdown. After the shutdown flow in the creek decreased significantly. Photo credits: Laura E.
USGS scientist sampling tap water from a public-water supply.
USGS scientist sampling tap water from a public-water supply.
Harmful algal blooms turn water in Milford Lake emerald green
Harmful algal blooms turn water in Milford Lake emerald green
Cyanobacterial blooms, such as the one shown that occurred in 2016 on Lake Okeechobee, Florida, can release toxins.
Cyanobacterial blooms, such as the one shown that occurred in 2016 on Lake Okeechobee, Florida, can release toxins.
The Green River in the Upper Colorado River Basin.
The Green River in the Upper Colorado River Basin.
Green River in the Upper Colorado River Basin.
Green River in the Upper Colorado River Basin.
Soil sampling near the Kanab North uranium mine site in Arizona.
Soil sampling near the Kanab North uranium mine site in Arizona.
Soil sampling near the Kanab North uranium mine site in Arizona.
Soil sampling near the Kanab North uranium mine site in Arizona.
In this photo the USGS scientist is getting ready to measure discharge (flow) in the same stream as above (from New York Branch, Iowa), but after a rainfall event.
In this photo the USGS scientist is getting ready to measure discharge (flow) in the same stream as above (from New York Branch, Iowa), but after a rainfall event.
Dr. Michael T. Meyer receiving his Distinguished Service Award on May 9, 2016, from Mike Connor, Deputy Secretary of the Interior (left) and Sally Jewell, Secretary of the Interior (right)
Dr. Michael T. Meyer receiving his Distinguished Service Award on May 9, 2016, from Mike Connor, Deputy Secretary of the Interior (left) and Sally Jewell, Secretary of the Interior (right)
Denis R. LeBlanc receiving his Distinguished Service Award on May 9, 2016, from Mike Connor, Deputy Secretary of the Interior (left) and Sally Jewell, Secretary of the Interior (right).
Denis R. LeBlanc receiving his Distinguished Service Award on May 9, 2016, from Mike Connor, Deputy Secretary of the Interior (left) and Sally Jewell, Secretary of the Interior (right).
This West Virginia disposal facility disposes of wastewaters from unconventional oil and gas production in Class II underground injection control wells
This West Virginia disposal facility disposes of wastewaters from unconventional oil and gas production in Class II underground injection control wells
A scientist walking on a trail in Grand Canyon, National Park
A scientist walking on a trail in Grand Canyon, National Park
View of Old Mans Creek near Iowa City, Iowa upstream from a bridge used for collecting water-quality samples (USGS Site ID: 05455100).
View of Old Mans Creek near Iowa City, Iowa upstream from a bridge used for collecting water-quality samples (USGS Site ID: 05455100).
Western view toward the Red Mountains near Silverton, Colorado, taken just upstream from the North Fork Cement Creek drainage in 2006. The photo illustrates acidic drainage (red drainage at right) and less acidic drainage (white drainage at left of photo) that originates from altered rocks and mines in the watershed.
Western view toward the Red Mountains near Silverton, Colorado, taken just upstream from the North Fork Cement Creek drainage in 2006. The photo illustrates acidic drainage (red drainage at right) and less acidic drainage (white drainage at left of photo) that originates from altered rocks and mines in the watershed.
Ferricrete (surficial deposits cemented by iron oxides) formation at the base of Cement Creek north of Silverton, Colorado.
Ferricrete (surficial deposits cemented by iron oxides) formation at the base of Cement Creek north of Silverton, Colorado.