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Groundwater levels for the Nation

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Agency code = usgs
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  • 422810092250401
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USGS 422810092250401 089N14W31DDDC 43048 1975Waterloo 21

Black Hawk County, Iowa
Latitude  42°28'10", Longitude  92°25'05" NAD27
Land-surface elevation 879.00 feet above NGVD29
The depth of the well is 225 feet below land surface.
The depth of the hole is 225 feet below land surface.
This well is completed in the Silurian-Devonian aquifers (N400SLRDVN) national aquifer.
This well is completed in the Cedar Valley Limestone (344CDVL) 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
1975 Y62610 851.00NGVD291L  A
1975 Y62611 850.97NAVD881L  A
1975 Y7201928.00  1L  A
1998-04-2715:00 UTCm62610 856.00NGVD291A  A
1998-04-2715:00 UTCm62611 855.97NAVD881A  A
1998-04-2715:00 UTCm7201923.00  1A  A
1998-06-2515:50 UTCm62610 857.00NGVD291A  A
1998-06-2515:50 UTCm62611 856.97NAVD881A  A
1998-06-2515:50 UTCm7201922.00  1A  A
1998-08-2514:30 UTCm62610 851.00NGVD291A  A
1998-08-2514:30 UTCm62611 850.97NAVD881A  A
1998-08-2514:30 UTCm7201928.00  1A  A
1998-10-2716:00 UTCm62610 850.00NGVD291A  A
1998-10-2716:00 UTCm62611 849.97NAVD881A  A
1998-10-2716:00 UTCm7201929.00  1A  A
1998-12-2916:30 UTCm62610 854.00NGVD291A  A
1998-12-2916:30 UTCm62611 853.97NAVD881A  A
1998-12-2916:30 UTCm7201925.00  1A  A
1999-02-2516:40 UTCm62610 854.00NGVD291A  A
1999-02-2516:40 UTCm62611 853.97NAVD881A  A
1999-02-2516:40 UTCm7201925.00  1A  A

Explanation
SectionCodeDescription
Water-level date-time accuracyYDate is accurate to the Year
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 measurementAAirline measurement.
Method of measurementLInterpreted from geophysical logs.
Measuring agencyNot determined
Source of measurementNot determined
Water-level approval statusAApproved for publication -- Processing and review completed.