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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 2019-08-15 2020-08-20
Information Water-quality 1908-07-27 2020-08-20
Inorganics, Major, Metals Water-quality 1957-10-08 2020-08-20
Inorganics, Major, Non-metals Water-quality 1957-10-08 2020-08-20
Inorganics, Minor, Non-metals Water-quality 1973-08-20 2009-12-03
Inorganics, Minor, metals Water-quality 1962-08-28 2009-12-03
Microbiological Water-quality 1968-10-28 1997-07-31
Nutrient Water-quality 1957-10-08 2020-08-20
Organics, PCBs Water-quality 1976-05-10 1996-10-31
Organics, other Water-quality 1962-08-28 2020-08-20
Organics, pesticide Water-quality 1976-05-10 1999-09-15
Physical Daily Values, Unit Values, Water-quality 1908-07-27 2021-09-24
Radiochemistry Water-quality 1981-02-05 2009-11-05
Sediment Daily Values, Water-quality 1965-02-19 2009-12-03
n/a Peak Measurements 1938-09-22 2018-11-25
n/a Site Visits 1961-03-06 2021-09-01
n/a USGS Annual Water Data Reports Site 2006-01-01 2019-01-01
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
NAD83
Decimal Latitude-longitude datum NAD83
District
34
State
34
County
021
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 L
Altitude accuracy n/a
Altitude datum
NGVD29
Subbasin hydrologic unit
02040201
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

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