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Groundwater levels for the Nation

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  • 412858087441201
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USGS 412858087441201 35N13E-33.2h1

Cook County, Illinois
Latitude  41°28'58", Longitude  87°44'12" NAD27
Land-surface elevation 732.5 feet above NGVD29
The depth of the well is 418 feet below land surface.
The depth of the hole is 418 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.
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
1969-02-06 D62610 703.50NGVD291O  A
1969-02-06 D62611 703.21NAVD881O  A
1969-02-06 D7201929.00  1O  A
1977-08-24 D62610 685.50NGVD291O  A
1977-08-24 D62611 685.21NAVD881O  A
1977-08-24 D7201947.00  1O  A
1977-10-03 D62610 687.50NGVD291O  A
1977-10-03 D62611 687.21NAVD881O  A
1977-10-03 D7201945.00  1O  A
1977-11-17 D62610 688.50NGVD291O  A
1977-11-17 D62611 688.21NAVD881O  A
1977-11-17 D7201944.00  1O  A
1977-11-21 D62610 687.50NGVD291O  A
1977-11-21 D62611 687.21NAVD881O  A
1977-11-21 D7201945.00  1O  A
1977-11-29 D62610 689.50NGVD291O  A
1977-11-29 D62611 689.21NAVD881O  A
1977-11-29 D7201943.00  1O  A
1977-12 M62610 693.50NGVD291O  A
1977-12 M62611 693.21NAVD881O  A
1977-12 M7201939.00  1O  A
1978-01-05 D62610 693.50NGVD291O  A
1978-01-05 D62611 693.21NAVD881O  A
1978-01-05 D7201939.00  1O  A
1978-01-06 D62610 691.50NGVD291O  A
1978-01-06 D62611 691.21NAVD881O  A
1978-01-06 D7201941.00  1O  A
1978-01-18 D62610 691.50NGVD291O  A
1978-01-18 D62611 691.21NAVD881O  A
1978-01-18 D7201941.00  1O  A
1979-01 M62610 687.50NGVD291O  A
1979-01 M62611 687.21NAVD881O  A
1979-01 M7201945.00  1O  A
1979-07-18 D62610 692.50NGVD291O  A
1979-07-18 D62611 692.21NAVD881O  A
1979-07-18 D7201940.00  1O  A
1979-11-12 D62610 689.50NGVD291O  A
1979-11-12 D62611 689.21NAVD881O  A
1979-11-12 D7201943.00  1O  A
1979-11-23 D62610 687.50NGVD291O  A
1979-11-23 D62611 687.21NAVD881O  A
1979-11-23 D7201945.00  1O  A
1979-12-26 D62610 687.50NGVD291O  A
1979-12-26 D62611 687.21NAVD881O  A
1979-12-26 D7201945.00  1O  A
1980-01-03 D62610 686.50NGVD291O  A
1980-01-03 D62611 686.21NAVD881O  A
1980-01-03 D7201946.00  1O  A
1980-02-08 D62610 688.50NGVD291O  A
1980-02-08 D62611 688.21NAVD881O  A
1980-02-08 D7201944.00  1O  A
1980-03-17 D62610 686.50NGVD291O  A
1980-03-17 D62611 686.21NAVD881O  A
1980-03-17 D7201946.00  1O  A
1980-04-28 D62610 688.50NGVD291O  A
1980-04-28 D62611 688.21NAVD881O  A
1980-04-28 D7201944.00  1O  A
1980-05-09 D62610 688.50NGVD291O  A
1980-05-09 D62611 688.21NAVD881O  A
1980-05-09 D7201944.00  1O  A
1980-07-28 D62610 687.50NGVD291O  A
1980-07-28 D62611 687.21NAVD881O  A
1980-07-28 D7201945.00  1O  A
1980-11-13 D62610 688.50NGVD291O  A
1980-11-13 D62611 688.21NAVD881O  A
1980-11-13 D7201944.00  1O  A
1980-12-26 D62610 687.50NGVD291O  A
1980-12-26 D62611 687.21NAVD881O  A
1980-12-26 D7201945.00  1O  A
1981-01-05 D62610 687.50NGVD291O  A
1981-01-05 D62611 687.21NAVD881O  A
1981-01-05 D7201945.00  1O  A
1981-01-23 D62610 687.50NGVD291O  A
1981-01-23 D62611 687.21NAVD881O  A
1981-01-23 D7201945.00  1O  A
1981-02-24 D62610 689.50NGVD291O  A
1981-02-24 D62611 689.21NAVD881O  A
1981-02-24 D7201943.00  1O  A
1981-03-10 D62610 689.50NGVD291O  A
1981-03-10 D62611 689.21NAVD881O  A
1981-03-10 D7201943.00  1O  A
1981-03-26 D62610 688.50NGVD291O  A
1981-03-26 D62611 688.21NAVD881O  A
1981-03-26 D7201944.00  1O  A
1981-07-17 D62610 684.50NGVD291O  A
1981-07-17 D62611 684.21NAVD881O  A
1981-07-17 D7201948.00  1O  A
1985-05-3017:30 UTCm62610 657.50NGVD291OIL006AA
1985-05-3017:30 UTCm62611 657.21NAVD881OIL006AA
1985-05-3017:30 UTCm7201975.00  1OIL006AA

Explanation
SectionCodeDescription
Water-level date-time accuracyDDate is accurate to the Day
Water-level date-time accuracyMDate is accurate to the Month
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 measurementOObserved.
Measuring agencyNot determined
Measuring agencyIL006State of Illinois Environmental Protection Agency
Source of measurementNot determined
Source of measurementAReported by another government agency (do not use "A" if reported by owner, use "O").
Water-level approval statusAApproved for publication -- Processing and review completed.