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

Real-Time Specific Conductance, in µS/cm

Map of , showing which states provide real-time computed water-quality data
04162010 04165500 04167625 04166500 04157005 04166100 04161820 04168400 04067500 040325155 04043016 04118564 04043097 04057800 04043244 421337083074201 04057801 04032150 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.