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

Real-Time pH, field, in standard units

Map of , showing which states provide real-time computed water-quality data
10260500 11510700 11455142 09429490 11455136 11455095 11451800 11455508 11461500 11273400 11313405 11203580 11463980 11337190 11455485 11336790 11312676 11455315 11455276 11511990 11455385 11044000 11447650 381142122015801 11455338 11462500 11455140 11447890 11204100 11176900 10261500 11467000 11463682 10260950 380548121390501 11465240 380711121323401 380631122032201 380924121301901 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.