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Important for you to know:

  • New to WDFN: see current water conditions throughout the state using the new State Pages. Visit the Louisiana page for an example. Filter by continuous data type and age of data, view latest values, and link to graphing options to explore the data further. You can update the state name in the URL to visit your State Page or read our announcement on the Water Data for the Nation blog to find links to all the state and territory pages.
Important Inventory Page

USGS Parameter Group Data Types Start Date End Date
Information Water-quality 1993-06-21 1993-06-22
Inorganics, Major, Metals Water-quality 1993-06-22 1993-06-22
Inorganics, Major, Non-metals Water-quality 1993-06-22 1993-06-22
Inorganics, Minor, Non-metals Water-quality 1993-06-22 1993-06-22
Inorganics, Minor, metals Water-quality 1993-06-22 1993-06-22
Nutrient Water-quality 1993-06-22 1993-06-22
Organics, PCBs Water-quality 1993-06-22 1993-06-22
Organics, other Water-quality 1993-06-21 1993-06-22
Organics, pesticide Water-quality 1993-06-21 1993-06-22
Physical Groundwater Levels, Water-quality 1992-06-23 2015-12-17
Water Data for the Nation inventory

Monitoring location 414238087401102 is associated with a Well in Cook County, Illinois. Water data back to 1992 are available online.

Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
414238087401102 n/a
Site name
37N14E-7.6c2 (USEPA BH1D) n/a
Site type
Well
GW
DMS latitude 414240.34 n/a
DMS longitude 0874033.47 n/a
Decimal latitude 41.71120556 n/a
Decimal longitude -87.67596389 n/a
Latitude-longitude method
Mapping grade GPS unit (handheld accuracy range 12 to 40 ft) G
Latitude-longitude accuracy
Accurate to + or - .5 sec (PLGR/PPS GPS). 5
Latitude-longitude datum
North American Datum of 1983 NAD83
Decimal Latitude-longitude datum North American Datum of 1983 NAD83
District
Illinois 17
State
Illinois 17
County
Cook County 031
Country US n/a
Land net location description S7 T37N R14E n/a
Name of location map BLUE ISLAND QUAD n/a
Scale of location map 24000 n/a
Altitude of Gage/land surface 664 feet n/a
Method altitude determined Interpolated from topographic map. M
Altitude accuracy 2.5 feet n/a
Altitude datum
National Geodetic Vertical Datum of 1929 NGVD29
Subbasin hydrologic unit
07120003
Drainage basin
n/a
Topographic setting
Hilltop
H
Flags for instruments at site NNNNNNNNNNNNNNNNNNNNNNNNNNNNNN n/a
Date of first construction
19920127 n/a
Date site established or inventoried 19980209 n/a
Drainage area
n/a
Contributing drainage area n/a
Time Zone abbreviation CST n/a
Site honors Daylight Saving Time
N n/a
Data reliability
Data have been checked by the reporting agency. C
Data-other GW files YYNYYYNN n/a
National aquifer Sand and gravel aquifers (glaciated regions) N100GLCIAL
Local aquifer Quaternary System 110QRNR
Local aquifer type
Confined single aquifer C
Well depth 90 feet n/a
Hole depth
90 feet n/a
Source of depth data S n/a
Project number SEchicago n/a