WaterQualityWatch -- Continuous Real-Time Water Quality of Surface Water in the United States

Real-Time Dissolved Oxygen, in mg/L

Map of , showing which states provide real-time computed water-quality data
14151000 420451121510000 14159500 14150000 14206241 452731123092100 14317450 420741121554001 14183020 14206950 14163000 14210000 14078260 14158100 14152000 14186200 14203500 14185000 14164550 14149011 14187200 14181500 14182500 14185900 11510700 14211010 442453122394900 11509370 14158850 453040123065201 11509500 14202980 14162450 14162200 14207200 14187500 14163900 453004122510301 14211720 14162500 14209710 14316460 14309000 14202650 420448121503100 444306122144600 14206694 422444121580400 14209700 420833121402000 441022122193200 421401121480900 142063398 421935121551200 420037121334100 422622122004000 422042121513100 420853121505500 453030122560101 420853121505501 422305121553803 422305121553800 14039320 14317600 422719121571400 11507501 422622122004003 10382000 421015121471800 453027122400000 452041119321500 14078240 14078250 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.