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
373015122071000 11479700 11451800 11463980 11449255 11452900 11455820 11447650 374811122235001 374938122251801 11449820 11273400 381142122015801 11455780 11170000 11171500 11467000 11461500 11162765 11172175 11170450 11452500 375607122264701 11462500 10336610 10336660 10336645 11510700 10336676 384115121402501 11274790 11530500 11511990 10336780 10346000 11447890 11313315 11337190 11455136 11455385 11452800 11517818 11336685 380631122032201 11455140 11185185 11455276 11463682 11449235 11465240 11453000 11455095 11313433 390029122410601 11336790 11312676 11152850 11455142 11152890 11152870 11455340 11455338 11447905 11336680 11455315 11304810 11336600 11447903 11455485 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.