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Groundwater levels for the Nation

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  • 401000105032701
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USGS 401000105032701 SB00106936DDB

Boulder County, Colorado
Latitude  40°00'10", Longitude 105°05'28" NAD27
Land-surface elevation 5,100.00 feet above NGVD29
The depth of the well is 600 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
1977-03-14 D62610 4920.60NGVD291S  A
1977-03-14 D62611 4923.81NAVD881S  A
1977-03-14 D72019179.40  1S  A
1977-10-13 D62610 4926.40NGVD291S  A
1977-10-13 D62611 4929.61NAVD881S  A
1977-10-13 D72019173.60  1S  A
1978-03-13 D62610 4942.12NGVD291S  A
1978-03-13 D62611 4945.33NAVD881S  A
1978-03-13 D72019157.88  1S  A
1978-10-24 D62610 4932.56NGVD291S  A
1978-10-24 D62611 4935.77NAVD881S  A
1978-10-24 D72019167.44  1S  A
1979-03-13 D62610 4934.08NGVD291S  A
1979-03-13 D62611 4937.29NAVD881S  A
1979-03-13 D72019165.92  1S  A
1979-10-02 D62610 4935.95NGVD291S  A
1979-10-02 D62611 4939.16NAVD881S  A
1979-10-02 D72019164.05  1S  A
1980-02-29 D62610 4994.67NGVD291S  A
1980-02-29 D62611 4997.88NAVD881S  A
1980-02-29 D72019105.33  1S  A
1980-10-21 D62610 5035.07NGVD291S  A
1980-10-21 D62611 5038.28NAVD881S  A
1980-10-21 D7201964.93  1S  A
1981-03-03 D62610 4999.40NGVD291T  A
1981-03-03 D62611 5002.61NAVD881T  A
1981-03-03 D72019100.60  1T  A
1981-10-14 D62610 4960.00NGVD29PS  A
1981-10-14 D62611 4963.21NAVD88PS  A
1981-10-14 D72019140.00  PS  A
1982-03-02 D62610 4986.10NGVD29PT  A
1982-03-02 D62611 4989.31NAVD88PT  A
1982-03-02 D72019113.90  PT  A
1982-10-13 D62610 5016.99NGVD291S  A
1982-10-13 D62611 5020.20NAVD881S  A
1982-10-13 D7201983.01  1S  A
1983-03-08 D62610 5027.24NGVD291S  A
1983-03-08 D62611 5030.45NAVD881S  A
1983-03-08 D7201972.76  1S  A
1983-09-21 D62610 5031.20NGVD291S  A
1983-09-21 D62611 5034.41NAVD881S  A
1983-09-21 D7201968.80  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.
Method of measurementTElectric-tape measurement.
Measuring agencyNot determined
Source of measurementNot determined
Water-level approval statusAApproved for publication -- Processing and review completed.