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
11455315 11044000 11337190 11455136 11455142 09429490 11463980 11451800 11455338 11452500 10260500 11455095 11336790 381142122015801 11203580 11467000 11176900 11510700 11312676 11447890 11313405 11455508 11447650 11455385 10261500 11455485 11461500 11273400 11462500 11463682 11204100 11511990 380631122032201 11452800 11455140 11465240 10260950 11455276 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.