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National Water Information System (NWISWeb)

Abstract: The National Water Information System database (NWIS)provide access to
water-resources data collected at approximately 1.5 million sites in all 50
States, the District of Columbia, and Puerto Rico. Online access to this data
is organized around these categories:
- Surface Water
-Ground Water
-Water Quality

The USGS investigates the occurrence, quantity, quality, distribution, and
movement of surface and underground waters and disseminates the data to the
public, State and local governments, public and private utilities, and other
Federal agencies involved with managing our water resources.

[Summary adapted from:]
Related URL
Description: The Purdue University Web-Based Hydrography Analysis Tool (WHAT) allows users
to view USGS stream flow data in a GIS setting. Users can also upload their own
stream flow data to be visualized in this map service which is created using
the open source mapserver technology. A flow statistics model was added to the
system to generate models for flood scenarios.
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Geographic Coverage
Spatial coordinates   
  N: 50.0   S: 25.0   E: -66.0   W: -125.0

Data Set Citation
Dataset Title: National Water Information System (NWISWeb)
Dataset Release Place: WWW
Dataset Publisher: U.S. Geological Survey
Data Presentation Form: Maps, Text
Online Resource:
ISO Topic Category
STREAM GAUGES Ancillary Description
Quality The NWIS historic streamflow database has replaced the WATSTORE
database. The NWIS current conditions data is provisional, i.e. the
data has not been reviewed or edited. Please see U.S. Geological
Water Resources Division Provisional Data Disclaimer at the following
Access Constraints None
Use Constraints Please cite data properly.
Data Set Progress
Originating Center
Data Center
National Water Information System, Water Resources Division, U.S. Geological Survey, U.S. Department of the Interior Supplemental Info
Data Center URL:

Data Center Personnel
Phone: 703-648-4000;1-800-426-9000
Email: h2oteam at
Contact Address:
USGS National Center
Water Resources Division
12201 Sunrise Valley Drive
City: Reston
Province or State: VA
Postal Code: 20192-0002
Country: USA
Distribution Media: Online Internet (HTTP)
Fees: None
Email: gsfc-gcmduso at
Extended Metadata Properties
(Click to view more)

Creation and Review Dates
DIF Creation Date: 2000-06-06
Last DIF Revision Date: 2016-11-18

Link to Web Site