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
07380249 292800090060000 291929089562600 073802512 073802511 073802516 301001089442600 07381349 073745257 294045092492300 07374527 295847093420600 07387040 301141089320300 07374526 292952089453800 08017095 073745275 07380330 07380260 07387050 08017044 295231093100100 073745253 073745258 294717092250000 2951190901217 07381355 07374000 292952090565300 295124089542100 07381600 295501090190400 300740090382500 07381350 07381150 301324090382400 293809092361500 07380215 295744093303800 073645001 08017118 073813498 07380255 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.