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Groundwater levels for the Nation

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Agency code = usgs
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  • 415105092135201
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USGS 415105092135201 081N12W03CDA 1996USGS OBS. WELL IRC 4

Iowa County, Iowa
Latitude  41°51'05.1", Longitude  92°13'52.5" NAD83
Land-surface elevation 755 feet above NGVD29
The depth of the well is 22.5 feet below land surface.
The depth of the hole is 22.5 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 Holocene Alluvium (111ALVM) 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
1996-08-0816:10 UTCm62610 748.71NGVD291T  A
1996-08-0816:10 UTCm62611 748.70NAVD881T  A
1996-08-0816:10 UTCm720196.29  1T  A
1996-08-0816:40 UTCm62610 748.71NGVD291T  A
1996-08-0816:40 UTCm62611 748.70NAVD881T  A
1996-08-0816:40 UTCm720196.29  1T  A

Explanation
SectionCodeDescription
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 measurementTElectric-tape measurement.
Measuring agencyNot determined
Source of measurementNot determined
Water-level approval statusAApproved for publication -- Processing and review completed.