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Groundwater levels for the Nation

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Agency code = usgs
site_no list =
  • 414009087364201
Minimum number of levels = 1
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USGS 414009087364201 37N14E-27.6f1

Cook County, Illinois
Latitude  41°40'09", Longitude  87°36'42" NAD27
Land-surface elevation 591.62 feet above NGVD29
The depth of the hole is 85 feet below land surface.
This well is completed in the Silurian-Devonian aquifers (N400SLRDVN) national aquifer.
This well is completed in the Racine Formation (355RCIN) local aquifer.
Output formats
Table of 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
1987-11-05 D62610 514.13NGVD291Z  A
1987-11-05 D62611 513.80NAVD881Z  A
1987-11-05 D7201977.49  1Z  A
1987-11-17 D62610 516.98NGVD291Z  A
1987-11-17 D62611 516.65NAVD881Z  A
1987-11-17 D7201974.64  1Z  A
1988-01-04 D62610 526.57NGVD291Z  A
1988-01-04 D62611 526.24NAVD881Z  A
1988-01-04 D7201965.05  1Z  A
1988-04-22 D62610 543.90NGVD291Z  A
1988-04-22 D62611 543.57NAVD881Z  A
1988-04-22 D7201947.72  1Z  A
1988-05-12 D62610 544.16NGVD291Z  A
1988-05-12 D62611 543.83NAVD881Z  A
1988-05-12 D7201947.46  1Z  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 measurementZOther.
Measuring agencyNot determined
Source of measurementNot determined
Water-level approval statusAApproved for publication -- Processing and review completed.