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Groundwater levels for the Nation

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Agency code = usgs
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  • 413043087391201
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USGS 413043087391201 35N14E-20.8d1

Cook County, Illinois
Latitude  41°30'43", Longitude  87°39'12" NAD27
Land-surface elevation 665.00 feet above NGVD29
The depth of the well is 406 feet below land surface.
The depth of the hole is 406 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
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
1962-12-17 D62610 615.00NGVD291O  A
1962-12-17 D62611 614.70NAVD881O  A
1962-12-17 D7201950.00  1O  A
1962-12-18 D62610 615.00NGVD291O  A
1962-12-18 D62611 614.70NAVD881O  A
1962-12-18 D7201950.00  1O  A
1962-12-19 D62610 615.00NGVD291O  A
1962-12-19 D62611 614.70NAVD881O  A
1962-12-19 D7201950.00  1O  A
1967-12 M62610 590.00NGVD291O  A
1967-12 M62611 589.70NAVD881O  A
1967-12 M7201975.00  1O  A
1973-01 M62610 601.00NGVD291O  A
1973-01 M62611 600.70NAVD881O  A
1973-01 M7201964.00  1O  A
1980 Y62610 615.00NGVD291O  A
1980 Y62611 614.70NAVD881O  A
1980 Y7201950.00  1O  A
1984-06-1221:20 UTCm62610 598.00NGVD291OIL006AA
1984-06-1221:20 UTCm62611 597.70NAVD881OIL006AA
1984-06-1221:20 UTCm7201967.00  1OIL006AA
1984-10-1117:25 UTCm62610 589.00NGVD291OIL006AA
1984-10-1117:25 UTCm62611 588.70NAVD881OIL006AA
1984-10-1117:25 UTCm7201976.00  1OIL006AA
1984-11-2817:15 UTCm62610 565.00NGVD291OIL006AA
1984-11-2817:15 UTCm62611 564.70NAVD881OIL006AA
1984-11-2817:15 UTCm72019100.00  1OIL006AA
1985-03-2021:40 UTCm62610 582.00NGVD291OUSGSSA
1985-03-2021:40 UTCm62611 581.70NAVD881OUSGSSA
1985-03-2021:40 UTCm7201983.00  1OUSGSSA

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 accuracyYDate is accurate to the Year
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
Measuring agencyUSGSU.S. Geological Survey
Source of measurementNot determined
Source of measurementAReported by another government agency (do not use "A" if reported by owner, use "O").
Source of measurementSMeasured by personnel of reporting agency.
Water-level approval statusAApproved for publication -- Processing and review completed.