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Groundwater levels for the Nation

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Agency code = usgs
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  • 471729122193201
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USGS 471729122193201 21N/04E-20L01

King County, Washington
Latitude  47°17'28.2", Longitude 122°19'37.4" NAD83
Land-surface elevation 234 feet above NAVD88
The depth of the well is 237 feet below land surface.
The depth of the hole is 237 feet below land surface.
Output formats
Table of data
Tab-separated data
Graph of data
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
1962-11-09 D62610 217.40NGVD291L  A
1962-11-09 D62611 221.00NAVD881L  A
1962-11-09 D7201913.00  1L  A
1963-01-15 D62610 218.21NGVD291SUSGSSA
1963-01-15 D62611 221.81NAVD881SUSGSSA
1963-01-15 D7201912.19  1SUSGSSA
1967-09-12 D62610 213.06NGVD291SUSGSSA
1967-09-12 D62611 216.66NAVD881SUSGSSA
1967-09-12 D7201917.34  1SUSGSSA
1986-05-20 D62610 207.00NGVD291TUSGSSA
1986-05-20 D62611 210.60NAVD881TUSGSSA
1986-05-20 D7201923.40  1TUSGSSA
1987-04-21 D62610 193.98NGVD291SUSGSSA
1987-04-21 D62611 197.58NAVD881SUSGSSA
1987-04-21 D7201936.42  1SUSGSSA
1987-10-02 D62610 189.70NGVD291TUSGSSA
1987-10-02 D62611 193.30NAVD881TUSGSSA
1987-10-02 D7201940.70  1TUSGSSA

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 measurementLInterpreted from geophysical logs.
Method of measurementSSteel-tape measurement.
Method of measurementTElectric-tape measurement.
Measuring agencyNot determined
Measuring agencyUSGSU.S. Geological Survey
Source of measurementNot determined
Source of measurementSMeasured by personnel of reporting agency.
Water-level approval statusAApproved for publication -- Processing and review completed.