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Groundwater levels for the Nation

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Agency code = usgs
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  • 414315087313101
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USGS 414315087313101 38N15E-5.1b1 (USEPA BH18S)

Cook County, Illinois
Latitude  41°43'15.83", Longitude  87°31'31.84" NAD27
Land-surface elevation 591 feet above NGVD29
The depth of the well is 18 feet below land surface.
The depth of the hole is 18 feet below land surface.
This well is completed in the Fill (111FILL) 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
1992-06-23 D62610 578.33NGVD291SUSGSSA
1992-06-23 D62611 577.97NAVD881SUSGSSA
1992-06-23 D7201912.67  1SUSGSSA
1997-07-07 D62610 579.55NGVD291S  A
1997-07-07 D62611 579.19NAVD881S  A
1997-07-07 D7201911.45  1S  A
2009-09-0218:45 UTCm62610 581.27NGVD291TUSGSSA
2009-09-0218:45 UTCm62611 580.91NAVD881TUSGSSA
2009-09-0218:45 UTCm720199.73  1TUSGSSA
2010-05-2116:30 UTCm62610 580.87NGVD291VUSGSSA
2010-05-2116:30 UTCm62611 580.51NAVD881VUSGSSA
2010-05-2116:30 UTCm7201910.13  1VUSGSSA
2012-12-04 D62610 580.08NGVD291VUSGSSA
2012-12-04 D62611 579.72NAVD881VUSGSSA
2012-12-04 D7201910.92  1VUSGSSA
2013-06-25 D62610 581.21NGVD291VUSGSSA
2013-06-25 D62611 580.85NAVD881VUSGSSA
2013-06-25 D720199.79  1VUSGSSA
2013-08-2018:18 UTCm62610 580.55NGVD291VUSGSSA
2013-08-2018:18 UTCm62611 580.19NAVD881VUSGSSA
2013-08-2018:18 UTCm7201910.45  1VUSGSSA
2013-09-2417:59 UTCm62610 580.48NGVD291VUSGSSA
2013-09-2417:59 UTCm62611 580.12NAVD881VUSGSSA
2013-09-2417:59 UTCm7201910.52  1VUSGSSA
2013-11-0520:56 UTCm62610 580.55NGVD291VUSGSSA
2013-11-0520:56 UTCm62611 580.19NAVD881VUSGSSA
2013-11-0520:56 UTCm7201910.45  1VUSGSSA
2014-04-2323:32 UTCm62610 581.37NGVD291VUSGSSA
2014-04-2323:32 UTCm62611 581.01NAVD881VUSGSSA
2014-04-2323:32 UTCm720199.63  1VUSGSSA
2014-06-0519:38 UTCm62610 581.49NGVD291VUSGSSA
2014-06-0519:38 UTCm62611 581.13NAVD881VUSGSSA
2014-06-0519:38 UTCm720199.51  1VUSGSSA
2015-01-1522:25 UTCm62610 580.59NGVD291VUSGSSA
2015-01-1522:25 UTCm62611 580.23NAVD881VUSGSSA
2015-01-1522:25 UTCm7201910.41  1VUSGSSA

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
Method of measurementSSteel-tape measurement.
Method of measurementTElectric-tape measurement.
Method of measurementVCalibrated electric-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.