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Groundwater levels for the Nation

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Agency code = usgs
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  • 400239105044501
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USGS 400239105044501 SB00106914DCD2

Boulder County, Colorado
Latitude  40°02'39", Longitude 105°04'45" NAD27
Land-surface elevation 5,150.00 feet above NGVD29
The depth of the well is 545 feet below land surface.
The depth of the hole is 545 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
1962-09-21 D62610 5000.00NGVD291L  A
1962-09-21 D62611 5003.06NAVD881L  A
1962-09-21 D72019150.00  1L  A
1979-11-14 D62610 4727.70NGVD29PT  A
1979-11-14 D62611 4730.76NAVD88PT  A
1979-11-14 D72019422.30  PT  A
1980-05-22 D62610 4921.50NGVD291S  A
1980-05-22 D62611 4924.56NAVD881S  A
1980-05-22 D72019228.50  1S  A
1980-05-23 D62610 4911.05NGVD291S  A
1980-05-23 D62611 4914.11NAVD881S  A
1980-05-23 D72019238.95  1S  A
1980-05-27 D62610 4922.60NGVD291S  A
1980-05-27 D62611 4925.66NAVD881S  A
1980-05-27 D72019227.40  1S  A
1980-10-31 D62610 4942.55NGVD291S  A
1980-10-31 D62611 4945.61NAVD881S  A
1980-10-31 D72019207.45  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
StatusPPumping
Method of measurementLInterpreted from geophysical logs.
Method of measurementSSteel-tape measurement.
Method of measurementTElectric-tape measurement.
Measuring agencyNot determined
Source of measurementNot determined
Water-level approval statusAApproved for publication -- Processing and review completed.