| A River:
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Enter the name of the River
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| A State:
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Select a State
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| A State Watershed:
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Select a State and a Watershed
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| A Gage in a State:
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Select a State and Enter the Name of the River
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| A Gage in a Watershed:
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Select a State and a Watershed and enter the Name of the River
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| by Site #:
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Enter the USGS or DWR Site #
NOTE: This search will not use the State/County/Watershed or River filters
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| by Flows (CFS):
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Enter a number for CFS and select => or <=
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| by Water Temperature (°F):
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Enter a number for °F degrees and select => or <=
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| by Turbidity (NTU):
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Enter a number for Turbidity in NTU units and select => or <=
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| Turbidity :
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Turbidity is a measure of water clarity. It describes the amount of light scattered or blocked by particles floating in the water. These particles cause the water to look cloudy or murky. In rivers and lakes, these particles can come from algae and other plant material, soils, silt and clay, and other substances in the water like salts, minerals and metals.
Increased turbidity in lakes and rivers can be caused by heavy rains that wash soil and other materials into the water, erosion, snowmelt, windstorms, or fires. It can also be caused by activities such as logging, mining, agriculture, or dredging.
See examples at: Turbidity
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