USGS National Water Information System

As part of the Survey's program of disseminating water data to the public, the Water Resources Division (WRD) maintains a distributed network of computers and fileservers for the storage and retrieval of water data collected through its activities at approximately 1.4 million sites. This system is called the National Water Information System (NWIS).

Data Transfer ScheduleDaily
Most Recent Data Transfer9/21/2023 11:46:57 PM
Period of Record10/25/1907 - 9/21/2023
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