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Groundwater levels for the Nation

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Agency code = usgs
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  • 400009105085801
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USGS 400009105085801 SB00106931DDA

Boulder County, Colorado
Latitude  40°00'09", Longitude 105°08'58" NAD27
Land-surface elevation 5,400.00 feet above NGVD29
The depth of the well is 300 feet below land surface.
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
1977-03-25 D62610 5315.40NGVD291S  A
1977-03-25 D62611 5318.54NAVD881S  A
1977-03-25 D7201984.60  1S  A
1977-10-17 D62610 5268.80NGVD29PS  A
1977-10-17 D62611 5271.94NAVD88PS  A
1977-10-17 D72019131.20  PS  A
1978-03-14 D62610 5303.94NGVD29PS  A
1978-03-14 D62611 5307.08NAVD88PS  A
1978-03-14 D7201996.06  PS  A
1978-10-26 D62610 5243.10NGVD29PT  A
1978-10-26 D62611 5246.24NAVD88PT  A
1978-10-26 D72019156.90  PT  A
1979-03-14 D62610 5292.70NGVD291S  A
1979-03-14 D62611 5295.84NAVD881S  A
1979-03-14 D72019107.30  1S  A
1979-10-02 D62610 5252.10NGVD29PS  A
1979-10-02 D62611 5255.24NAVD88PS  A
1979-10-02 D72019147.90  PS  A
1980-03-05 D62610 5258.79NGVD291T  A
1980-03-05 D62611 5261.93NAVD881T  A
1980-03-05 D72019141.21  1T  A
1980-10-22 D62610 5248.30NGVD291T  A
1980-10-22 D62611 5251.44NAVD881T  A
1980-10-22 D72019151.70  1T  A
1981-03-03 D62610 5255.55NGVD291S  A
1981-03-03 D62611 5258.69NAVD881S  A
1981-03-03 D72019144.45  1S  A
1981-10-13 D62610 5249.94NGVD29PS  A
1981-10-13 D62611 5253.08NAVD88PS  A
1981-10-13 D72019150.06  PS  A
1982-03-02 D62610 5255.30NGVD291T  A
1982-03-02 D62611 5258.44NAVD881T  A
1982-03-02 D72019144.70  1T  A
1982-10-14 D62610 5256.60NGVD291T  A
1982-10-14 D62611 5259.74NAVD881T  A
1982-10-14 D72019143.40  1T  A
1983-03-09 D62610 5261.05NGVD291T  A
1983-03-09 D62611 5264.19NAVD881T  A
1983-03-09 D72019138.95  1T  A
1983-09-21 D62610 5259.80NGVD29PS  A
1983-09-21 D62611 5262.94NAVD88PS  A
1983-09-21 D72019140.20  PS  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 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.