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
14034500 422622122004003 420741121554001 441022122193200 11509370 14210000 14182500 11509500 14159500 452731123092100 14203500 14211720 11510700 14163900 14202980 14162450 14202650 14211010 14162200 453040123065201 14183020 14207200 14317450 14163000 422622122004000 14209710 14209700 14206950 453030122560101 453004122510301 14206241 14162500 14316460 14158850 444306122144600 421015121471800 452041119321500 11507501 422444121580400 422305121553803 14206694 420853121505500 420853121505501 420833121402000 14317600 422719121571400 421401121480900 422042121513100 422305121553800 421935121551200 14164550 14181500 420451121510000 420037121334100 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.