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  • Beta release
  • Explore the New  USGS National Water Dashboard  interactive map to access real-time data from over 13,500 stations nationwide.
  • Notice of planned maintenance to underlying USGS network September 24-26, 2021: During this maintenance period users may experience intermittent periods of inaccessibility or delayed delivery of hydrologic data to the USGS National Water Information System (NWIS). Please email gs-w_support_nwisweb@usgs.gov with any concerns regarding impacts to data delivery.

Important Data may be provisional - learn more

USGS Parameter Group Data Types Start Date End Date
Biological Water-quality 2019-03-21 2021-04-29
Information Water-quality 1978-09-27 2021-04-29
Inorganics, Major, Metals Water-quality 1977-08-11 1985-04-11
Inorganics, Major, Non-metals Daily Values, Unit Values, Water-quality 1977-08-11 2021-09-26
Inorganics, Minor, Non-metals Water-quality 1977-08-11 1985-04-11
Inorganics, Minor, metals Water-quality 1977-08-11 1985-04-11
Nutrient Water-quality 1977-08-11 2008-03-17
Organics, other Water-quality 1977-08-11 2012-11-20
Physical Daily Values, Unit Values, Water-quality 1910-07-01 2021-09-26
Radiochemistry Water-quality 1981-04-02 1981-04-02
Sediment Water-quality 1977-08-11 2004-07-22
n/a Peak Measurements 1925-02-04 2020-01-28
n/a Site Visits 1931-04-01 2021-08-05
n/a USGS Annual Water Data Reports Site 2006-01-01 2020-01-01
Classic Water Data for the Nation Inventory

Metadata Element Location Metadata Metadata Code
Agency
USGS
Site identification number
n/a
Site name
n/a
Site type
ST
DMS latitude n/a
DMS longitude n/a
Decimal latitude n/a
Decimal longitude n/a
Latitude-longitude method
M
Latitude-longitude accuracy
S
Latitude-longitude datum
NAD27
Decimal Latitude-longitude datum NAD83
District
41
State
41
County
039
Country n/a
Land net location description n/a
Name of location map n/a
Scale of location map n/a
Altitude of Gage/land surface n/a
Method altitude determined M
Altitude accuracy n/a
Altitude datum
NGVD29
Subbasin hydrologic unit
17090004
Drainage basin
n/a
Topographic setting
n/a
Flags for instruments at site n/a
Date of first construction
n/a
Date site established or inventoried n/a
Drainage area
n/a
Contributing drainage area n/a
Time Zone abbreviation n/a
Site honors Daylight Savings Time
n/a
Data reliability
C
Data-other GW files n/a
National aquifer n/a
Local aquifer n/a
Local aquifer type
n/a
Well depth n/a
Hole depth
n/a
Source of depth data n/a
Project number n/a

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