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
09085000 09095500 09144250 09152500 09251000 09149500 07109500 09071750 09070500 09136100 391953108130201 09163500 09085160 06711565 07106000 393259107194801 09037500 09359020 09014050 09040500 09020500 09114500 06729470 06707525 09010500 09027100 09060799 394548108280501 400712108214601 09361500 394746108262901 09034250 09058000 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.