Skip to main content
U.S. flag

An official website of the United States government

  • 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 1974-08-15 2019-08-15
Information Water-quality 1972-10-05 2021-04-05
Inorganics, Major, Metals Water-quality 1968-03-12 2021-04-05
Inorganics, Major, Non-metals Water-quality 1968-03-12 2021-04-05
Inorganics, Minor, Non-metals Water-quality 1968-03-12 2015-09-01
Inorganics, Minor, metals Water-quality 1968-03-12 2015-09-01
Microbiological Water-quality 1968-03-12 1996-01-19
Nutrient Water-quality 1968-12-18 2021-04-05
Organics, PCBs Water-quality 1973-10-04 1982-09-21
Organics, other Water-quality 1973-05-29 2021-04-05
Organics, pesticide Water-quality 1971-06-16 2006-10-03
Physical Daily Values, Unit Values, Water-quality 1915-08-23 2021-09-26
Population/Community Water-quality 1974-08-15 1974-09-02
Radiochemistry Water-quality 1967-11-20 1996-01-19
Sediment Water-quality 1969-11-05 2015-09-01
Stable Isotopes Water-quality 1991-08-03 2015-07-29
n/a Peak Measurements 1916-06-07 2020-04-30
n/a Site Visits 1915-08-20 2021-08-03
n/a USGS Annual Water Data Reports Site 2005-01-01 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
06
State
06
County
043
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
18040008
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
n/a
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

Questions or Comments