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