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Discover and download images related to the Groundwater and Streamflow Information Program.

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This image shows a damaged street sign and flood debris left behind by record flood waters of the Blanco River near Martindale,
Blanco River 2015 Memorial Weekend Flood
Blanco River 2015 Memorial Weekend Flood
Blanco River 2015 Memorial Weekend Flood

Picturesque rivers of the Texas Hill Country can turn into raging torrents in the part of Texas known as Flash Flood Alley when storms drop many inches of rain in the river watersheds. This image shows a damaged street sign and flood debris left behind by record flood waters of the Blanco River near Martindale, TX on Memorial weekend, 2015.

Picturesque rivers of the Texas Hill Country can turn into raging torrents in the part of Texas known as Flash Flood Alley when storms drop many inches of rain in the river watersheds. This image shows a damaged street sign and flood debris left behind by record flood waters of the Blanco River near Martindale, TX on Memorial weekend, 2015.

Centrifuge Bowl Containing River Suspended Sediment
Centrifuge Bowl Containing River Suspended Sediment for Analysis
Centrifuge Bowl Containing River Suspended Sediment for Analysis
Centrifuge Bowl Containing River Suspended Sediment for Analysis

A U.S. Geological Survey hydrologist holds a centrifuge bowl containing river suspended sediment for analysis of metals and organic chemicals. The sample was collected using a new in-field continuous-flow centrifugation technique to separate and collect suspended sediment from large volumes of water.

A U.S. Geological Survey hydrologist holds a centrifuge bowl containing river suspended sediment for analysis of metals and organic chemicals. The sample was collected using a new in-field continuous-flow centrifugation technique to separate and collect suspended sediment from large volumes of water.

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