Water Data

Streamflow Groundwater Water Quality Water Use List Water Use Map Data Mapper

Streamflow Map

Select a site to retrieve data and station information.

Explanation High > 90th percentile 76th - 90th percentile 25th - 75th percentile 10th - 24th percentile < 10th percentile Low Not ranked

The colored dots on this map depict streamflow conditions as a percentile, which is computed from the period of record for the current day of the year. Only stations with at least 30 years of record are used. The gray circles indicate other stations that were not ranked in percentiles either because they have fewer than 30 years of record or because they report parameters other than streamflow. Some stations, for example, measure stage only.