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