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
01304057 0135749950 01302020 0135980207 04236000 01354330 04249000 01355475 01304650 01304200 04213500 01359165 01376520 01376307 01376515 01427207 01427510 01303152 01311143 01372043 01374019 01304562 404028073384601 01433500 01518700 04231600 431533076582101 431314077315901 01342732 01310740 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.