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
09149500 07106000 09363500 06707525 09251000 09095500 09060799 07109500 06711565 09085000 391953108130201 09070500 06729470 09144250 09092570 09014050 09152500 09359020 393259107194801 09071750 09085150 09136100 09163500 09359010 09361500 09358000 09358550 09114500 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.