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
01575900 01474500 01573208 01481500 01548030 01458500 01573816 01573684 015319015 03072655 03108500 01467200 03083500 014670261 394337079544201 01427510 03072000 03043810 01427207 01438500 01576003 01477050 03075070 03036000 01576381 01516350 03081000 01518700 01463500 01467087 01481000 03007800 03079000 01473900 03034000 03073000 01542500 01475548 01467086 01549700 01467048 01465798 01540008 01544500 01474000 01576007 03049640 03105500 03106000 01475530 01467042 04213152 01473500 01454700 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.