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Groundwater levels for the Nation

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Agency code = usgs
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  • 415551087590901
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USGS 415551087590901 40N11E-28.4f1

Dupage County, Illinois
Latitude  41°55'51", Longitude  87°59'09" NAD27
Land-surface elevation 691.4 feet above NGVD29
The depth of the well is 155 feet below land surface.
The depth of the hole is 155 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
1924 Y62610 673.40NGVD291O  A
1924 Y62611 673.12NAVD881O  A
1924 Y7201918.00  1O  A
1934-02 M62610 671.40NGVD291O  A
1934-02 M62611 671.12NAVD881O  A
1934-02 M7201920.00  1O  A
1943-09 M62610 663.40NGVD291O  A
1943-09 M62611 663.12NAVD881O  A
1943-09 M7201928.00  1O  A
1956-06 M62610 666.40NGVD291O  A
1956-06 M62611 666.12NAVD881O  A
1956-06 M7201925.00  1O  A
1964-10 M62610 661.40NGVD291O  A
1964-10 M62611 661.12NAVD881O  A
1964-10 M7201930.00  1O  A
1967-02 M62610 659.40NGVD291O  A
1967-02 M62611 659.12NAVD881O  A
1967-02 M7201932.00  1O  A
1969-07 M62610 658.40NGVD291O  A
1969-07 M62611 658.12NAVD881O  A
1969-07 M7201933.00  1O  A
1970-07 M62610 663.40NGVD291O  A
1970-07 M62611 663.12NAVD881O  A
1970-07 M7201928.00  1O  A
1971-08 M62610 659.40NGVD291O  A
1971-08 M62611 659.12NAVD881O  A
1971-08 M7201932.00  1O  A
1977-04 M62610 623.40NGVD291O  A
1977-04 M62611 623.12NAVD881O  A
1977-04 M7201968.00  1O  A
1979-07-10 D62610 619.40NGVD291O  A
1979-07-10 D62611 619.12NAVD881O  A
1979-07-10 D7201972.00  1O  A
1985-07-2916:35 UTCm62610 625.40NGVD291OIL006AA
1985-07-2916:35 UTCm62611 625.12NAVD881OIL006AA
1985-07-2916:35 UTCm7201966.00  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 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
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.