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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
Information Water-quality 2010-12-08 2020-08-24
Inorganics, Major, Metals Water-quality 2009-08-12 2020-08-24
Inorganics, Major, Non-metals Water-quality 2009-08-12 2020-08-24
Inorganics, Minor, Non-metals Water-quality 2010-12-08 2010-12-08
Inorganics, Minor, metals Water-quality 2009-08-12 2020-08-24
Organics, other Water-quality 2010-12-08 2010-12-08
Physical Daily Values, Groundwater Levels, Unit Values, Water-quality 2009-04-14 2021-09-24
Radiochemistry Water-quality 2010-12-08 2010-12-08
Stable Isotopes Water-quality 2009-08-12 2010-12-08
n/a USGS Active Groundwater Level Network Site 2009-01-01 2021-01-01
n/a USGS Annual Water Data Reports Site 2009-01-01 2018-01-01
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
GW
DMS latitude n/a
DMS longitude n/a
Decimal latitude n/a
Decimal longitude n/a
Latitude-longitude method
D
Latitude-longitude accuracy
H
Latitude-longitude datum
NAD83
Decimal Latitude-longitude datum NAD83
District
51
State
51
County
810
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
02080108
Drainage basin
n/a
Topographic setting
F
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 S100NATLCP
Local aquifer 121PLCN
Local aquifer type
C
Well depth n/a
Hole depth
n/a
Source of depth data n/a
Project number n/a

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