At the bottom of the Location data page are three tabs labeled "Data Overview," "Discrete Data," and "Freshwater Quality Index." The Data Overview tab contains the metadata for that sampling site, explaining the types of data collected for that station and how many data points are available for each of the measured parameters. The Discrete Data tab contains a table with values for all parameters from the monthly sampling events. Access different years through the pull-down menu on this tab. The Freshwater Quality Index is described on River & stream water quality index webpage.