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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 Legacy real-time page

USGS Parameter Group Data Types Start Date End Date
Information Water-quality 2010-11-16 2020-07-21
Inorganics, Major, Metals Water-quality 2010-11-16 2020-07-21
Inorganics, Major, Non-metals Water-quality 2010-11-16 2020-07-21
Inorganics, Minor, Non-metals Water-quality 2010-11-16 2020-07-21
Inorganics, Minor, metals Water-quality 2010-11-16 2020-07-21
Nutrient Water-quality 2010-11-16 2020-07-21
Physical Daily Values, Groundwater Levels, Unit Values, Water-quality 2009-02-25 2024-11-23
Radiochemistry Water-quality 2010-11-16 2020-07-21
n/a USGS Active Groundwater Level Network Site 2009-01-01 2021-01-01
n/a USGS Annual Water Data Reports Site 2011-01-01 2023-01-01
Water Data for the Nation inventory

Monitoring location 421145088194802 is associated with a Well in McHenry County, Illinois. Current conditions of Depth to water level are available. Water data back to 2009 are available online.

Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
421145088194802 n/a
Site name
43N8E-20.6h2 (17-ALG-D) n/a
Site type
Well
GW
DMS latitude 421145 n/a
DMS longitude 0881948 n/a
Decimal latitude 42.1958333 n/a
Decimal longitude -88.33 n/a
Latitude-longitude method
Differentially corrected Global Positioning System. D
Latitude-longitude accuracy
Accurate to + or - 1 sec. S
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
McHenry County 111
Country US n/a
Land net location description NWNENWS20 T43N R8E n/a
Name of location map Crystal Lake n/a
Scale of location map 24000 n/a
Altitude of Gage/land surface 879.95 feet n/a
Method altitude determined GNSS2 - Level 2 Quality Survey Grade Global Navigation Satellite System X
Altitude accuracy .03 feet n/a
Altitude datum
North American Vertical Datum of 1988 NAVD88
Subbasin hydrologic unit
07120006
Drainage basin
n/a
Topographic setting
Flat surface
F
Flags for instruments at site YNNNNNNNNNNNNNNNYNNNNNNNNNNNNN n/a
Date of first construction
20081017 n/a
Date site established or inventoried 20100422 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 YY Y 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 187.8 feet n/a
Hole depth
189 feet n/a
Source of depth data R n/a
Project number 2407E6N00 n/a

Operated in cooperation with:

logo for McHenry County
McHenry County
logo for USGS - Cooperative Matching Funds
USGS - Cooperative Matching Funds