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
11044000 11455276 11455315 11455136 11455485 11455385 11312676 11455142 11452500 11451800 11455338 11455095 09429490 11452800 11313405 11447890 11203580 11273400 11176900 10261500 10260500 11462500 381142122015801 380711121323401 11455508 11447650 11467000 11461500 11204100 11463980 11337190 11510700 11336790 11463682 11465240 380631122032201 11511990 10260950 11455140 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.