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 Specific Conductance, in µS/cm

Map of , showing which states provide real-time computed water-quality data
05586300 05537980 05553700 05576100 05558300 05536137 05559900 05539670 05543010 05536995 05599490 05538010 05587498 03612600 05576195 05420400 05568705 411955088280601 423784088133401 05567500 03378500 05549500 07020850 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.