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Groundwater levels for the Nation

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Agency code = usgs
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  • 471927122202701
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USGS 471927122202701 21N/04E-07G01

King County, Washington
Latitude  47°19'27", Longitude 122°20'27" NAD27
Land-surface elevation 330 feet above NGVD29
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
1960-09-07 D62610 234.30NGVD291SUSGSSA
1960-09-07 D62611 237.90NAVD881SUSGSSA
1960-09-07 D7201995.70  1SUSGSSA
1967-08-02 D62610 231.75NGVD291SUSGSSA
1967-08-02 D62611 235.35NAVD881SUSGSSA
1967-08-02 D7201998.25  1SUSGSSA
1986-08-2617:30 UTCm62610 225.10NGVD291TUSGSSA
1986-08-2617:30 UTCm62611 228.70NAVD881TUSGSSA
1986-08-2617:30 UTCm72019104.90  1TUSGSSA
1987-04-10 D62610 227.98NGVD291SUSGSSA
1987-04-10 D62611 231.58NAVD881SUSGSSA
1987-04-10 D72019102.02  1SUSGSSA

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.