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
02203863 02208450 02336526 02207435 022035975 02203900 02318500 021989715 02397530 02336240 021989792 02336360 02413210 02198820 02336120 02336313 02217643 02203950 02337170 023362095 02203655 02207448 02344673 02336340 02413215 02344630 02203831 02203873 02208493 02198920 02394682 02388985 02207418 02207160 02207135 02203800 02198810 02198950 021989773 0219897945 02336300 02198955 02204037 021989793 02207400 02203960 02336410 02198840 02203603 02336728 02207385 02336152 02413205 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.