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
01474500 01540500 01575900 01576003 01481500 03083500 01463500 03073000 03036000 03072000 04213152 01474000 03034000 01576381 01470736 03072655 01473500 01549700 01475530 03007800 01481000 01518700 015319015 01473900 03079000 01467042 01573684 01427510 01454700 01458500 01573816 03081000 03108500 01467200 03105500 01467048 01427207 03043810 01544500 394337079544201 01573208 04212895 01467087 01542500 01548030 01477050 03106000 03049640 01465798 014670261 01516350 01540008 01467086 01438500 01475548 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.