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
01304200 04236000 01427510 01355475 04213500 01372043 01518700 01376269 01342732 404028073384601 01311143 01376520 01376307 0135980207 01433500 04231600 01303152 01304562 01310740 0135749950 01304057 01427207 01302020 01359165 01304650 01354330 01374019 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.