WaterQualityWatch -- Continuous Real-Time Water Quality of Surface Water in the United States

USGS is updating how statistical information is delivered. WaterWatch and WaterQualityWatch will be retired around February 24, 2026. Explore alternative tools and share feedback at wdfn@usgs.gov.

Real-Time Turbidity, in NTU or FNU

Map of , showing which states provide real-time computed water-quality data
03381500 03346500 05587498 05558300 05586300 05599490 07020850 05537980 05595000 03612600 05559900 03338780 05543010 05420400 05553700 03339000 05568705 05576195 05576100 05538010 03378500 05549500 05554300 423784088133401 05447500 05446500 05567500 411955088280601 Explanation

* Site operated on a seasonal basis or currently is not operating.
No values are available for the last 6 hours.

The "Real-time" map tracks short-term changes (over several hours) of water quality. Although the general appearance of the map changes very little from one hour to the next, individual sites may change rapidly in response to major rain events or to reservoir releases. The data used to produce this map are provisional.