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Groundwater levels for the Nation

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Agency code = usgs
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  • 303400097415901
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USGS 303400097415901 ZK-58-27-528

Williamson County, Texas
Latitude  30°34'00", Longitude  97°41'59" NAD27
Land-surface elevation 772 feet above NGVD29
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
1986-04-18 D62610 709.40NGVD291TUSGSSA
1986-04-18 D62611 709.67NAVD881TUSGSSA
1986-04-18 D7201962.60  1TUSGSSA
1991-02-11 D62610 700.40NGVD291S  A
1991-02-11 D62611 700.67NAVD881S  A
1991-02-11 D7201971.60  1S  A
1991-08-27 D62610 703.70NGVD291S  A
1991-08-27 D62611 703.97NAVD881S  A
1991-08-27 D7201968.30  1S  A
1992-03-24 D62610 741.53NGVD291S  A
1992-03-24 D62611 741.80NAVD881S  A
1992-03-24 D7201930.47  1S  A
1992-06-15 D62610 736.81NGVD291S  A
1992-06-15 D62611 737.08NAVD881S  A
1992-06-15 D7201935.19  1S  A
1993-03-23 D62610 716.25NGVD291S  A
1993-03-23 D62611 716.52NAVD881S  A
1993-03-23 D7201955.75  1S  A
1993-09-16 D62610 720.83NGVD291S  A
1993-09-16 D62611 721.10NAVD881S  A
1993-09-16 D7201951.17  1S  A

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 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.