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 Schedule||Daily|
|Most Recent Data Transfer||1/20/2017 9:14:34 PM|
|Period of Record||10/25/1907 - 1/20/2017|