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
12511800 1247351985 12100490 12101102 12514450 12101100 12102078 12492900 12090500 12442500 14211720 12510500 12090400 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.