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