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Groundwater levels for the Nation

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  • 400030105081201
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USGS 400030105081201 SB00106932ACD

Boulder County, Colorado
Latitude  40°00'30", Longitude 105°08'12" NAD27
Land-surface elevation 5,308.00 feet above NGVD29
The depth of the well is 600 feet below land surface.
Output formats
Table of 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
1977-03-17 D62610 5260.49NGVD291S  A
1977-03-17 D62611 5263.65NAVD881S  A
1977-03-17 D7201947.51  1S  A
1977-10-17 D62610 5253.52NGVD291S  A
1977-10-17 D62611 5256.68NAVD881S  A
1977-10-17 D7201954.48  1S  A
1978-03-13 D62610 5244.92NGVD291S  A
1978-03-13 D62611 5248.08NAVD881S  A
1978-03-13 D7201963.08  1S  A
1978-10-25 D62610 5255.45NGVD291S  A
1978-10-25 D62611 5258.61NAVD881S  A
1978-10-25 D7201952.55  1S  A
1979-03-14 D62610 5259.50NGVD291S  A
1979-03-14 D62611 5262.66NAVD881S  A
1979-03-14 D7201948.50  1S  A
1979-10-05 D62610 5251.21NGVD29PS  A
1979-10-05 D62611 5254.37NAVD88PS  A
1979-10-05 D7201956.79  PS  A
1980-03-03 D62610 5264.51NGVD291S  A
1980-03-03 D62611 5267.67NAVD881S  A
1980-03-03 D7201943.49  1S  A
1980-10-22 D62610 5263.91NGVD291S  A
1980-10-22 D62611 5267.07NAVD881S  A
1980-10-22 D7201944.09  1S  A
1981-03-05 D62610 5266.98NGVD291S  A
1981-03-05 D62611 5270.14NAVD881S  A
1981-03-05 D7201941.02  1S  A
1981-10-13 D62610 5251.75NGVD291S  A
1981-10-13 D62611 5254.91NAVD881S  A
1981-10-13 D7201956.25  1S  A
1982-03-02 D62610 5252.00NGVD291S  A
1982-03-02 D62611 5255.16NAVD881S  A
1982-03-02 D7201956.00  1S  A
1982-10-13 D62610 5265.64NGVD291S  A
1982-10-13 D62611 5268.80NAVD881S  A
1982-10-13 D7201942.36  1S  A
1983-03-08 D62610 5266.31NGVD291S  A
1983-03-08 D62611 5269.47NAVD881S  A
1983-03-08 D7201941.69  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 measurementSSteel-tape measurement.
Measuring agencyNot determined
Source of measurementNot determined
Water-level approval statusAApproved for publication -- Processing and review completed.