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
02388985 021989773 021989715 021989792 02198955 02198920 02335350 02198950 02389150 02203960 02203950 02336410 02335000 02344671 02203831 02207120 02336340 02336030 02207400 02344673 02207435 02207135 02203873 02204037 02334500 02207160 02203603 02337410 02336120 02206500 02203900 02203800 02336000 02394682 02207385 02336313 02334885 02207448 02208450 02336152 02318500 02217274 02218565 02335880 02207418 02198840 02336728 02336526 023362095 02334578 02208150 021989793 02344630 02336240 02336300 02207185 02208493 02388975 02203655 02203863 02217643 02334480 0219897945 02336360 02205000 02205865 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.