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EF/SDWIS logo Column Name: D_LAST_UPDT_TS



Description: A system-generated value that represents the calendar date and time on which the water system was initially posted to the data base, when a subsequent state-supplied inventory modification was made, or when the water system was deleted.

Envirofacts Table Name: SDW_WATER_SYSTEM

Data Source:

Properties:

Definition Source: Office of Ground Water and Drinking Water SDWIS/Federal Development Model dated 3/5/1997



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