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Groundwater levels for the Nation

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Agency code = usgs
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  • 420041091442301
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USGS 420041091442301 083N08W11DACC 1992USGS CRM-SD-24

Linn County, Iowa
Latitude  42°00'41", Longitude  91°44'23" NAD27
Land-surface elevation 730.87 feet above NGVD29
The depth of the well is 17.5 feet below land surface.
The depth of the hole is 17.5 feet below land surface.
This well is completed in the Sand and gravel aquifers (glaciated regions) (N100GLCIAL) national aquifer.
This well is completed in the Quaternary System (110QRNR) local aquifer.
Output formats
Table of data
Tab-separated data
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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
1994-12-01 D62610 728.07NGVD291T  A
1994-12-01 D62611 727.98NAVD881T  A
1994-12-01 D720192.80  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 measurementTElectric-tape measurement.
Measuring agencyNot determined
Source of measurementNot determined
Water-level approval statusAApproved for publication -- Processing and review completed.