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Groundwater levels for the Nation

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Agency code = usgs
site_no list =
  • 422458088371401
Minimum number of levels = 1
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USGS 422458088371401 46N 5E-35.5a4

Mchenry County, Illinois
Latitude  42°24'58", Longitude  88°37'14" NAD27
Land-surface elevation 924 feet above NGVD29
The depth of the well is 71 feet below land surface.
The depth of the hole is 71 feet below land surface.
This well is completed in the Sand and gravel aquifers (glaciated regions) (N100GLCIAL) national aquifer.
This well is completed in the Quaternary System (110QRNR) local aquifer.
Output formats
Table of data
Tab-separated data
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Reselect period
Date Time
?
 
Water-level
date-time
accuracy
?
 
Parameter
code 		Water
level,
feet
below
land
surface		 Water
level,
feet
above
specific
vertical
datum		 Referenced
vertical
datum
?
 
Status
?
 
Method of
measurement
?
 
Measuring
agency
?
 
Source of
measurement
?
 
Water-level
approval
status
1929 Y62610 909.00NGVD291O  A
1929 Y62611 908.81NAVD881O  A
1929 Y7201915.00  1O  A
1954-02-23 D62610 906.00NGVD291O  A
1954-02-23 D62611 905.81NAVD881O  A
1954-02-23 D7201918.00  1O  A

Explanation
SectionCodeDescription
Water-level date-time accuracyDDate is accurate to the Day
Water-level date-time accuracyYDate is accurate to the Year
Parameter code62610Groundwater level above NGVD 1929, feet
Parameter code62611Groundwater level above NAVD 1988, feet
Parameter code72019Depth to water level, feet below land surface
Referenced vertical datumNAVD88North American Vertical Datum of 1988
Referenced vertical datumNGVD29National Geodetic Vertical Datum of 1929
Status1Static
Method of measurementOObserved.
Measuring agencyNot determined
Source of measurementNot determined
Water-level approval statusAApproved for publication -- Processing and review completed.