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