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
09171100 09371492 07105815 07126300 09371520 383926107593001 07126485 07137500 393259107194801 09152500 09070050 07099969 09106485 07130500 07120500 07109500 06711565 09169500 09085160 09071750 09136100 394220106431500 09095500 07105820 07119700 07124000 09149500 07106500 391953108130201 09163500 07106000 07099400 09239500 09041400 09144250 07097000 09085000 07096000 07099971 09342600 09070500 09051050 09251000 09147500 07086000 09066300 394548108280501 385106106571000 09066510 09066200 09112500 09014050 394746108262901 09046600 09112200 09025000 09033100 09258980 09064600 09066310 06707525 400712108214601 381312104321001 09058000 09037500 09073300 09024000 09124500 09041090 09034250 09359020 09076300 09010500 09065500 09020500 09107000 09081000 09063000 09060799 09127000 09240020 09066000 09026500 09110000 09040500 06729470 09022000 09019500 09050700 09027100 09119000 09114500 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.