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
0821150305 07311782 08211502 08447000 08437710 08117300 08412500 08446500 07311800 08407500 08123850 07227500 08375300 08126380 08371500 08364000 08447300 07312500 08473575 08374200 08057410 08374510 08062500 08462500 08052745 08447410 08180800 08181800 08057000 08181500 08211200 08377200 08086400 08188060 08447018 08052700 08469175 08467680 08467670 08105891 08188500 08067254 08473326 08049500 300032095080501 08449000 295524095072701 08068000 08048000 295826095082200 08047050 295554095093402 294643095035200 08068500 08067215 08069500 08195000 08170990 08155500 08067252 07332605 08065350 08067100 08067118 08067000 08067250 08066850 07332622 08070200 08162675 08041770 08419000 08086212 08086290 08117975 08117301 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.