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Groundwater levels for the Nation

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Agency code = usgs
site_no list =
  • 421307088403201
Minimum number of levels = 1
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USGS 421307088403201 44N 5E- 8.4d

Mchenry County, Illinois
Latitude  42°13'07", Longitude  88°40'32" NAD27
Land-surface elevation 792 feet above NGVD29
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
1979-04-30 D62610 781.11NGVD291S  A
1979-04-30 D62611 780.91NAVD881S  A
1979-04-30 D7201910.89  1S  A
1980-01-15 D62610 770.65NGVD291S  A
1980-01-15 D62611 770.45NAVD881S  A
1980-01-15 D7201921.35  1S  A
1980-02-28 D62610 777.37NGVD291S  A
1980-02-28 D62611 777.17NAVD881S  A
1980-02-28 D7201914.63  1S  A
1980-04-22 D62610 779.85NGVD291S  A
1980-04-22 D62611 779.65NAVD881S  A
1980-04-22 D7201912.15  1S  A
1980-06-05 D62610 777.71NGVD291S  A
1980-06-05 D62611 777.51NAVD881S  A
1980-06-05 D7201914.29  1S  A
1980-07-09 D62610 776.87NGVD291S  A
1980-07-09 D62611 776.67NAVD881S  A
1980-07-09 D7201915.13  1S  A
1980-07-31 D62610 777.14NGVD291S  A
1980-07-31 D62611 776.94NAVD881S  A
1980-07-31 D7201914.86  1S  A
1980-09-05 D62610 778.34NGVD291S  A
1980-09-05 D62611 778.14NAVD881S  A
1980-09-05 D7201913.66  1S  A
1980-10-02 D62610 755.83NGVD291S  A
1980-10-02 D62611 755.63NAVD881S  A
1980-10-02 D7201936.17  1S  A
1980-11-01 D62610 761.76NGVD291S  A
1980-11-01 D62611 761.56NAVD881S  A
1980-11-01 D7201930.24  1S  A
1980-12-04 D62610 768.10NGVD291S  A
1980-12-04 D62611 767.90NAVD881S  A
1980-12-04 D7201923.90  1S  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.
Measuring agencyNot determined
Source of measurementNot determined
Water-level approval statusAApproved for publication -- Processing and review completed.