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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

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Agency code = usgs
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  • 421607088501102
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USGS 421607088501102 44N 3E-25.6h2

Boone County, Illinois
Latitude  42°16'07", Longitude  88°50'11" NAD27
Land-surface elevation 782.33 feet above NGVD29
The depth of the well is 48.6 feet below land surface.
The depth of the hole is 49.0 feet below land surface.
This well is completed in the Cambrian-Ordovician aquifer system (S300CAMORD) national aquifer.
This well is completed in the Galena-Platteville Aquifer (365GLPV) local aquifer.
Output formats
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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
1991-06-11 D62610 763.43NGVD291SUSGSSA
1991-06-11 D62611 763.18NAVD881SUSGSSA
1991-06-11 D7201918.90  1SUSGSSA
1993-07-19 D62610 768.03NGVD291T  A
1993-07-19 D62611 767.78NAVD881T  A
1993-07-19 D7201914.30  1T  A

Explanation
SectionCodeDescription
Water-level date-time accuracyDDate is accurate to the Day
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.
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.