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Groundwater levels for Illinois

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Agency code = usgs
site_no list =
  • 414104087360401
Minimum number of levels = 1
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USGS 414104087360401 isws well 9

Cook County, Illinois
Latitude  41°41'04", Longitude  87°36'04" NAD27
Land-surface elevation 585.60 feet above NGVD29
The depth of the well is 11 feet below land surface.
The depth of the hole is 15 feet below land surface.
This well is completed in the Other aquifers (N9999OTHER) national aquifer.
This well is completed in the Fill (111FILL) local aquifer.
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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
1992-06-23 D62610 581.83NGVD291SUSGSSA
1992-06-23 D62611 581.49NAVD881SUSGSSA
1992-06-23 D720193.77  1SUSGSSA

Explanation
SectionCodeDescription
Water-level date-time accuracyDDate is accurate to the Day
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 measurementSSteel-tape measurement.
Measuring agencyUSGSU.S. Geological Survey
Source of measurementSMeasured by personnel of reporting agency.
Water-level approval statusAApproved for publication -- Processing and review completed.