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
11510700 14034500 14078260 14206241 14206950 14210000 14317450 14163900 453030122560101 14207200 14158850 14163000 14202650 452731123092100 14316460 11509500 14162440 14182500 14209710 14159500 14183020 14181500 14211010 453040123065201 142063398 14203500 14211720 14162200 11509370 420741121554001 14164550 14202980 14162500 420451121510000 420853121505501 422622122004003 453004122510301 422444121580400 14206694 14162450 420833121402000 421015121471800 422042121513100 421401121480900 11507501 422305121553800 421935121551200 422719121571400 453027122400000 452041119321500 420037121334100 422622122004000 423722120111500 422305121553803 444306122144600 420853121505500 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.