Primary/Foreign Key for: Data_Definition table, ARS_SiteSummary table, ARS_Sites table.
Column Description: This is the sample site identifier for the location of where the data are measured.
System use:
Interface – none.
System operations – the values are used to build ARS_Sites and ARS SiteSummary tables.
Download - part of data download.
Field Data Source: Watershed data producer
Field Controls: Can not be blank. Format must be, StateWatershedSite_extension. The State is the two character abbreviation. Watershed is a two character abbreviation. The Site_extension may not have spaces, can have 1-6 alpha-numeric characters, and is the reference to the original value in the watershed. For example: OKLW1234ab. (Note: Must have a shape file record and html site description for each SiteID.)