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
04213500 404028073384601 04236000 01311143 04231600 01433500 01355475 01374019 01310740 01303152 01372043 01342732 0135749950 01376269 01359165 01376520 01427510 01427207 01302020 01376307 01304650 01304562 0135980207 01518700 01304200 01304057 01354330 01376515 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.