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
07106000 07109500 09070500 09163500 391953108130201 09149500 09144250 09095500 09152500 06711565 09085160 06707525 09060799 09071750 09085000 09085150 09136100 09251000 09014050 09359020 393259107194801 09114500 09092570 400853105563701 06729470 09361500 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.