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Groundwater levels for the Nation

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Agency code = usgs
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  • 395943105072601
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USGS 395943105072601 SC00106904BCD2

Boulder County, Colorado
Latitude  39°59'43", Longitude 105°07'26" NAD27
Land-surface elevation 5,345.00 feet above NGVD29
The depth of the well is 500 feet below land surface.
The depth of the hole is 500 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
1964-03-18 D62610 5195.00NGVD291L  A
1964-03-18 D62611 5198.19NAVD881L  A
1964-03-18 D72019150.00  1L  A
1977-03-28 D62610 5225.04NGVD291S  A
1977-03-28 D62611 5228.23NAVD881S  A
1977-03-28 D72019119.96  1S  A
1977-10-18 D62610 5212.57NGVD291S  A
1977-10-18 D62611 5215.76NAVD881S  A
1977-10-18 D72019132.43  1S  A
1978-03-13 D62610 5230.90NGVD291S  A
1978-03-13 D62611 5234.09NAVD881S  A
1978-03-13 D72019114.10  1S  A
1979-10-15 D62610 5222.56NGVD291S  A
1979-10-15 D62611 5225.75NAVD881S  A
1979-10-15 D72019122.44  1S  A
1980-03-21 D62610 5234.88NGVD291S  A
1980-03-21 D62611 5238.07NAVD881S  A
1980-03-21 D72019110.12  1S  A
1980-10-21 D62610 5227.68NGVD291S  A
1980-10-21 D62611 5230.87NAVD881S  A
1980-10-21 D72019117.32  1S  A
1981-10 M62610 5235.32NGVD291S  A
1981-10 M62611 5238.51NAVD881S  A
1981-10 M72019109.68  1S  A
1982-03-02 D62610 5236.92NGVD291S  A
1982-03-02 D62611 5240.11NAVD881S  A
1982-03-02 D72019108.08  1S  A
1982-10-13 D62610 5234.37NGVD291S  A
1982-10-13 D62611 5237.56NAVD881S  A
1982-10-13 D72019110.63  1S  A
1983-03-08 D62610 5240.36NGVD291S  A
1983-03-08 D62611 5243.55NAVD881S  A
1983-03-08 D72019104.64  1S  A
1983-09-20 D62610 5229.56NGVD291S  A
1983-09-20 D62611 5232.75NAVD881S  A
1983-09-20 D72019115.44  1S  A

Explanation
SectionCodeDescription
Water-level date-time accuracyDDate is accurate to the Day
Water-level date-time accuracyMDate is accurate to the Month
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.
Method of measurementSSteel-tape measurement.
Measuring agencyNot determined
Source of measurementNot determined
Water-level approval statusAApproved for publication -- Processing and review completed.