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
03275500 05517500 03292480 03374100 03292470 03292475 05515500 03292474 05518000 03353200 03293530 03353415 05524500 03293000 03277200 03302030 03292500 03353420 05536356 03293500 03302050 03293510 03294570 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.