How do I get a record of gage heights and other unit data older than 31 days?
Currently, the only way to gage-height and unit water-quality data is by special request. Use this link to send a message to our information team, and be sure to specify exactly what kind of data and what period of time you’re interested in. Instantaneous unit streamflow data can be obtained from the Instantaneous Data Archive, or IDA. This repository contains only unit streamflow data and only data that have been approved as final.