USGS - Low Flow - Maps
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Low Flow

Data collection points in the USGS Western US Low Flow Survey 2015

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The map displays streamflow divided by the drainage area at the site to allow comparisons between streams of different sizes. It does not account for differences between wetter and drier regions.

Unit Area Streamflow (cfs/mile2)
Less than 0.0001<0.0001
>0.0001 to 0.0002>0.0001 to 0.0002
Groundwater Site>0.0002 to 0.0005
Precipitation Site>0.0005 to 0.001
Groundwater Site>0.001 to 0.002
Groundwater Site>0.002 to 0.005
No Data AvailableNo Data Available
*Lowest streamflow measured from July through August 2015.

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Page Last Modified: Thursday, 15-Dec-2016 13:16:59 EST