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
09114500 394548108280501 09144250 09070500 09060799 09251000 06711565 09095500 06707525 09163500 09152500 09014050 09071750 09085160 07109500 400712108214601 09085000 09149500 393259107194801 06729470 09359020 09361500 09136100 09010500 07106000 394746108262901 09037500 391953108130201 09058000 09020500 09034250 09027100 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.