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Groundwater levels for the Nation

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Agency code = usgs
site_no list =
  • 414132087365901
Minimum number of levels = 1
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USGS 414132087365901 37N14E-22.6h

Cook County, Illinois
Latitude  41°41'32", Longitude  87°36'59" NAD27
Land-surface elevation 591 feet above NGVD29
The depth of the well is 77 feet below land surface.
The depth of the hole is 77 feet below land surface.
This well is completed in the Silurian-Devonian aquifers (N400SLRDVN) national aquifer.
This well is completed in the Niagaran Series (355NIGR) local aquifer.
Output formats
Table of data
Tab-separated data
Graph of data
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
1991-05-06 D62610 572.80NGVD291OUSGSSA
1991-05-06 D62611 572.46NAVD881OUSGSSA
1991-05-06 D7201918.20  1OUSGSSA
1992-06-23 D62610 573.62NGVD291SUSGSSA
1992-06-23 D62611 573.28NAVD881SUSGSSA
1992-06-23 D7201917.38  1SUSGSSA
1993-06-16 D62610 574.25NGVD291S  A
1993-06-16 D62611 573.91NAVD881S  A
1993-06-16 D7201916.75  1S  A
1997-07-10 D62610 573.60NGVD291S  A
1997-07-10 D62611 573.26NAVD881S  A
1997-07-10 D7201917.40  1S  A

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 measurementOObserved.
Method of measurementSSteel-tape measurement.
Measuring agencyNot determined
Measuring agencyUSGSU.S. Geological Survey
Source of measurementNot determined
Source of measurementSMeasured by personnel of reporting agency.
Water-level approval statusAApproved for publication -- Processing and review completed.