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
291929089562600 073802511 073802512 07380249 292800090060000 07380330 07374526 08017095 07374527 293809092361500 08017044 073802516 07387050 073745257 07381349 073745275 301001089442600 07380260 073745258 292952089453800 294045092492300 07387040 301141089320300 295231093100100 073745253 295744093303800 294717092250000 2951190901217 07381355 300740090382500 07381350 07374000 301324090382400 295501090190400 292952090565300 295124089542100 07381150 07381600 07380255 08017118 073813498 07381427 073645001 07380215 295847093420600 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.