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Groundwater levels for the Nation

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Agency code = usgs
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  • 415139092190801
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USGS 415139092190801 081N13W02AAA

Poweshiek County, Iowa
Latitude  41°51'39.6", Longitude  92°19'07.8" NAD83
Land-surface elevation 840 feet above NGVD29
The depth of the well is 25.0 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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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
2007-08-1422:00 UTCm62610 831.00NGVD291TUSGSSA
2007-08-1422:00 UTCm62611 831.00NAVD881TUSGSSA
2007-08-1422:00 UTCm720199.00  1TUSGSSA
2009-07-1617:00 UTCm62610 834.64NGVD291TUSGSSA
2009-07-1617:00 UTCm62611 834.64NAVD881TUSGSSA
2009-07-1617:00 UTCm720195.36  1TUSGSSA
2015-07-0918:55 UTCm62610 833.64NGVD291TUSGSSP
2015-07-0918:55 UTCm62611 833.64NAVD881TUSGSSP
2015-07-0918:55 UTCm720196.36  1TUSGSSP
2017-06-27 D62610 831.55NGVD291SUSGSSP
2017-06-27 D62611 831.55NAVD881SUSGSSP
2017-06-27 D720198.45  1SUSGSSP

Explanation
SectionCodeDescription
Water-level date-time accuracyDDate is accurate to the Day
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 measurementSSteel-tape measurement.
Method of measurementTElectric-tape measurement.
Measuring agencyUSGSU.S. Geological Survey
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.