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
09060799 07109500 09071750 09136100 09085000 09152500 09251000 391953108130201 07106000 09163500 09095500 393259107194801 09149500 09085160 09070500 09144250 06711565 09085150 09010500 09361500 09027100 09359020 09037500 09092570 09058000 09114500 09034250 09014050 06729470 09020500 06707525 400853105563701 09040500 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.