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Groundwater levels for the Nation

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Agency code = usgs
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  • 414037088002901
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USGS 414037088002901 37N11E-20.8d2

Cook County, Illinois
Latitude  41°40'36.76", Longitude  88°00'29.03" NAD83
Land-surface elevation 587.41 feet above NAVD88
The depth of the well is 60.2 feet below land surface.
The depth of the hole is 60.2 feet below land surface.
This well is completed in the Silurian-Devonian aquifers (N400SLRDVN) national aquifer.
This well is completed in the Silurian System (350SLRN) 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
2011-02-1117:15 UTCm62610 576.21NGVD291VUSGSSA
2011-02-1117:15 UTCm62611 575.92NAVD881VUSGSSA
2011-02-1117:15 UTCm7201911.49  1VUSGSSA
2011-02-1623:13 UTCm62610 576.73NGVD291VUSGSSA
2011-02-1623:13 UTCm62611 576.44NAVD881VUSGSSA
2011-02-1623:13 UTCm7201910.97  1VUSGSSA
2011-02-1718:39 UTCm62610 576.70NGVD291VUSGSSA
2011-02-1718:39 UTCm62611 576.41NAVD881VUSGSSA
2011-02-1718:39 UTCm7201911.00  1VUSGSSA
2011-02-2415:57 UTCm62610 577.31NGVD295VUSGSSA
2011-02-2415:57 UTCm62611 577.02NAVD885VUSGSSA
2011-02-2415:57 UTCm7201910.39  5VUSGSSA
2011-02-2416:02 UTCm62610 577.29NGVD295VUSGSSA
2011-02-2416:02 UTCm62611 577.00NAVD885VUSGSSA
2011-02-2416:02 UTCm7201910.41  5VUSGSSA
2011-02-2416:04 UTCm62610 577.19NGVD295VUSGSSA
2011-02-2416:04 UTCm62611 576.90NAVD885VUSGSSA
2011-02-2416:04 UTCm7201910.51  5VUSGSSA
2011-03-2317:27 UTCm62610 576.34NGVD291VUSGSSA
2011-03-2317:27 UTCm62611 576.05NAVD881VUSGSSA
2011-03-2317:27 UTCm7201911.36  1VUSGSSA
2011-03-30 D62610 576.11NGVD291VUSGSSA
2011-03-30 D62611 575.82NAVD881VUSGSSA
2011-03-30 D7201911.59  1VUSGSSA
2011-04-13 D62610 577.14NGVD291VUSGSSA
2011-04-13 D62611 576.85NAVD881VUSGSSA
2011-04-13 D7201910.56  1VUSGSSA
2011-05-09 D62610 577.06NGVD291VUSGSSA
2011-05-09 D62611 576.77NAVD881VUSGSSA
2011-05-09 D7201910.64  1VUSGSSA
2011-06-17 D62610 577.10NGVD291VUSGSSA
2011-06-17 D62611 576.81NAVD881VUSGSSA
2011-06-17 D7201910.60  1VUSGSSA
2011-07-21 D62610 577.50NGVD291VUSGSSA
2011-07-21 D62611 577.21NAVD881VUSGSSA
2011-07-21 D7201910.20  1VUSGSSA
2012-02-1514:43 UTCm62610 577.27NGVD295VUSGSSA
2012-02-1514:43 UTCm62611 576.98NAVD885VUSGSSA
2012-02-1514:43 UTCm7201910.43  5VUSGSSA

Explanation
SectionCodeDescription
Water-level date-time accuracyDDate is accurate to the Day
Water-level date-time accuracymDate is accurate to the Minute
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
Status5Groundwater level affected by surface water
Method of measurementVCalibrated electric-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.