Skip to main content

Important for you to know:

  • New to WDFN: see current water conditions throughout the state using the new State Pages. Filter by continuous data type and age of data, view latest values, and link to graphing options to explore the data further. To learn more, read our announcement on the Water Data for the Nation blog.
Important Inventory Page

USGS Parameter Group Data Types Start Date End Date
Information Water-quality 1984-04-26 2007-08-09
Inorganics, Major, Metals Water-quality 1984-04-26 1992-10-21
Inorganics, Major, Non-metals Water-quality 1984-04-26 2007-08-09
Inorganics, Minor, Non-metals Water-quality 1984-04-26 1992-10-21
Inorganics, Minor, metals Water-quality 1984-04-26 2007-08-09
Microbiological Water-quality 2007-08-09 2007-08-09
Nutrient Water-quality 1984-04-26 1992-10-21
Organics, PCBs Water-quality 1990-06-04 1992-10-21
Organics, other Water-quality 1984-04-26 2007-08-09
Organics, pesticide Water-quality 1985-03-13 2007-08-09
Physical Groundwater Levels, Water-quality 1974-08-13 2007-08-09
Water Data for the Nation inventory

Monitoring location 404629087453801 is associated with a Well in Iroquois County, Illinois. Water data back to 1974 are available online.

Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
404629087453801 n/a
Site name
27N12W-31.6b1 n/a
Site type
Well
GW
DMS latitude 404629 n/a
DMS longitude 0874538 n/a
Decimal latitude 40.77475756 n/a
Decimal longitude -87.760589 n/a
Latitude-longitude method
Interpolated from MAP. M
Latitude-longitude accuracy
Accurate to + or - 5 sec. F
Latitude-longitude datum
North American Datum of 1927 NAD27
Decimal Latitude-longitude datum North American Datum of 1983 NAD83
District
Illinois 17
State
Illinois 17
County
Iroquois County 075
Country US n/a
Land net location description NWSESWS31 T27N R12W n/a
Name of location map GILMAN n/a
Scale of location map 24000 n/a
Altitude of Gage/land surface 632.00 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
07120002
Drainage basin
n/a
Topographic setting
Flat surface
F
Flags for instruments at site NNNNNNNNNNNNNNNNNNNNNNNNNNNNNN n/a
Date of first construction
197408 n/a
Date site established or inventoried 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 YYYYNYNN n/a
National aquifer Sand and gravel aquifers (glaciated regions) N100GLCIAL
Local aquifer Quaternary System 110QRNR
Local aquifer type
n/a
Well depth 133 feet n/a
Hole depth
133 feet n/a
Source of depth data A n/a
Project number 441708600 n/a