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Groundwater levels for the Nation

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Agency code = usgs
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  • 401104105304301
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USGS 401104105304301 XLN - 8

Boulder County, Colorado
Latitude  40°11'04", Longitude 105°30'43" NAD27
Land-surface elevation 8,380 feet above NGVD29
The depth of the well is 163 feet below land surface.
This well is completed in the Other aquifers (N9999OTHER) national aquifer.
This well is completed in the Precambrian Crystalline Rocks (400PCMBC) 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
1969-11-25 D62610 8342.00NGVD291L  A
1969-11-25 D62611 8346.30NAVD881L  A
1969-11-25 D7201938.00  1L  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 measurementLInterpreted from geophysical logs.
Measuring agencyNot determined
Source of measurementNot determined
Water-level approval statusAApproved for publication -- Processing and review completed.