This site from the USGS measures peak stream flow data for the James River near Richmond, Virginia. The page provides the data in several different formats, including a graph, a table, a WATSTORE formatted file, or a tab-separated file.
Subject: Geoscience:Hydrology:Ground Water:Water supply/water resource evaluation Resource Type: Datasets and Tools:Datasets with Tools Data Derived: Data Derived Data Source: Real-Time Data, Observational Data Theme: Teach the Earth:Teaching Topics:Water, Teach the Earth:Course Topics:Hydrology/Hydrogeology