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Groundwater levels for the Nation

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Agency code = usgs
site_no list =
  • 412145088260901
Minimum number of levels = 1
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USGS 412145088260901 33N7E-4.6c1

Grundy County, Illinois
Latitude  41°21'45", Longitude  88°26'09" NAD27
Land-surface elevation 525 feet above NGVD29
The depth of the well is 1,450 feet below land surface.
The depth of the hole is 1,451 feet below land surface.
This well is completed in the Cambrian-Ordovician aquifer system (S300CAMORD) national aquifer.
This well is completed in the Ironton-Galesville (372IRGL) 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
1993-10 M62610 220.00NGVD291L  A
1993-10 M62611 219.75NAVD881L  A
1993-10 M72019305.00  1L  A
1995-05-22 D62610 212.00NGVD291O  A
1995-05-22 D62611 211.75NAVD881O  A
1995-05-22 D72019313.00  1O  A
2007-11-01 D62610 212.00NGVD291A  A
2007-11-01 D62611 211.75NAVD881A  A
2007-11-01 D72019313.00  1A  A
2009-02-27 D62610 204.00NGVD291A  A
2009-02-27 D62611 203.75NAVD881A  A
2009-02-27 D72019321.00  1A  A
2009-07-08 D62610 295.00NGVD291A  A
2009-07-08 D62611 294.75NAVD881A  A
2009-07-08 D72019230.00  1A  A
2017-08-1616:00 UTCm62610 248.00NGVD291AUSGSSA
2017-08-1616:00 UTCm62611 247.75NAVD881AUSGSSA
2017-08-1616:00 UTCm72019277.00  1AUSGSSA
2019-05-06 D62610 285.00NGVD291A  A
2019-05-06 D62611 284.75NAVD881A  A
2019-05-06 D72019240.00  1A  A
2020-06-26 D62610 303.00NGVD291A  A
2020-06-26 D62611 302.75NAVD881A  A
2020-06-26 D72019222.00  1A  A
2021-09-1018:00 UTCm62610 385.00NGVD291AUSGSSP
2021-09-1018:00 UTCm62611 384.75NAVD881AUSGSSP
2021-09-1018:00 UTCm72019140.00  1AUSGSSP

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 measurementAAirline measurement.
Method of measurementLInterpreted from geophysical logs.
Method of measurementOObserved.
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.
Water-level approval statusPProvisional data subject to revision.