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Groundwater levels for the Nation

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Agency code = usgs
site_no list =
  • 412916091405101
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USGS 412916091405101 077N07W08DBA

Washington County, Iowa
Latitude  41°29'16.1", Longitude  91°40'54.3" NAD83
Land-surface elevation 740 feet above NGVD29
The depth of the well is 125.0 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
1998-06-17 D62610 669.30NGVD291OUSGSSP
1998-06-17 D62611 669.20NAVD881OUSGSSP
1998-06-17 D7201970.70  1OUSGSSP
2007-07-1020:30 UTCm62610 680.04NGVD291TUSGSSA
2007-07-1020:30 UTCm62611 679.94NAVD881TUSGSSA
2007-07-1020:30 UTCm7201959.96  1TUSGSSA
2009-06-1816:15 UTCm62610 684.17NGVD291TUSGSSA
2009-06-1816:15 UTCm62611 684.07NAVD881TUSGSSA
2009-06-1816:15 UTCm7201955.83  1TUSGSSA
2015-07-0620:00 UTCm62610 686.65NGVD291TUSGSSA
2015-07-0620:00 UTCm62611 686.55NAVD881TUSGSSA
2015-07-0620:00 UTCm7201953.35  1TUSGSSA
2017-06-12 D62610 686.10NGVD291OUSGSSA
2017-06-12 D62611 686.00NAVD881OUSGSSA
2017-06-12 D7201953.90  1OUSGSSA
2019-07-1016:15 UTCm62610 686.94NGVD291VUSGSSA
2019-07-1016:15 UTCm62611 686.84NAVD881VUSGSSA
2019-07-1016:15 UTCm7201953.06  1VUSGSSA

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 measurementOObserved.
Method of measurementTElectric-tape measurement.
Method of measurementVCalibrated electric-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.