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Groundwater levels for the Nation

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Agency code = usgs
site_no list =
  • 390958076550501
Minimum number of levels = 1
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USGS 390958076550501 HO Dd 25

Howard County, Maryland
Latitude  39°09'58", Longitude  76°55'05" NAD27
Land-surface elevation 485 feet above NGVD29
The depth of the well is 121 feet below land surface.
The depth of the hole is 121 feet below land surface.
This well is completed in the Loch Raven Schist (370LCRV) local aquifer.
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
1988-03-16 D62610 461.53NGVD291Z  A
1988-03-16 D62611 460.82NAVD881Z  A
1988-03-16 D7201923.47  1Z  A
1988-05-02 D62610 462.21NGVD291Z  A
1988-05-02 D62611 461.50NAVD881Z  A
1988-05-02 D7201922.79  1Z  A
1988-06-02 D62610 463.15NGVD291Z  A
1988-06-02 D62611 462.44NAVD881Z  A
1988-06-02 D7201921.85  1Z  A
1988-07-01 D62610 462.53NGVD291Z  A
1988-07-01 D62611 461.82NAVD881Z  A
1988-07-01 D7201922.47  1Z  A
1988-08-03 D62610 461.28NGVD291Z  A
1988-08-03 D62611 460.57NAVD881Z  A
1988-08-03 D7201923.72  1Z  A
1988-09-01 D62610 458.26NGVD291Z  A
1988-09-01 D62611 457.55NAVD881Z  A
1988-09-01 D7201926.74  1Z  A
1988-09-28 D62610 459.70NGVD291Z  A
1988-09-28 D62611 458.99NAVD881Z  A
1988-09-28 D7201925.30  1Z  A
1988-11-03 D62610 458.75NGVD291Z  A
1988-11-03 D62611 458.04NAVD881Z  A
1988-11-03 D7201926.25  1Z  A
1988-12-02 D62610 458.46NGVD291Z  A
1988-12-02 D62611 457.75NAVD881Z  A
1988-12-02 D7201926.54  1Z  A
1989-01-02 D62610 458.38NGVD291Z  A
1989-01-02 D62611 457.67NAVD881Z  A
1989-01-02 D7201926.62  1Z  A
1989-02-01 D62610 458.75NGVD291Z  A
1989-02-01 D62611 458.04NAVD881Z  A
1989-02-01 D7201926.25  1Z  A
1989-03-01 D62610 459.44NGVD291Z  A
1989-03-01 D62611 458.73NAVD881Z  A
1989-03-01 D7201925.56  1Z  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
Method of measurementZOther.
Measuring agencyNot determined
Source of measurementNot determined
Water-level approval statusAApproved for publication -- Processing and review completed.