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Groundwater levels for the Nation

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Agency code = usgs
site_no list =
  • 391346077005001
Minimum number of levels = 1
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USGS 391346077005001 HO Cc 17

Howard County, Maryland
Latitude  39°13'46", Longitude  77°00'50" NAD27
Land-surface elevation 520 feet above NGVD29
The depth of the well is 175 feet below land surface.
The depth of the hole is 175 feet below land surface.
This well is completed in the Piedmont and Blue Ridge crystalline-rock aquifers (N400PDMBRX) national aquifer.
This well is completed in the Ultramafic Rocks (300UMFC) 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
1987-11-30 D62610 493.20NGVD291Z  A
1987-11-30 D62611 492.51NAVD881Z  A
1987-11-30 D7201926.80  1Z  A
1988-01-06 D62610 493.98NGVD291Z  A
1988-01-06 D62611 493.29NAVD881Z  A
1988-01-06 D7201926.02  1Z  A
1988-02-05 D62610 494.66NGVD291Z  A
1988-02-05 D62611 493.97NAVD881Z  A
1988-02-05 D7201925.34  1Z  A
1988-03-02 D62610 495.45NGVD291Z  A
1988-03-02 D62611 494.76NAVD881Z  A
1988-03-02 D7201924.55  1Z  A
1988-03-31 D62610 495.88NGVD291Z  A
1988-03-31 D62611 495.19NAVD881Z  A
1988-03-31 D7201924.12  1Z  A
1988-05-02 D62610 496.07NGVD291Z  A
1988-05-02 D62611 495.38NAVD881Z  A
1988-05-02 D7201923.93  1Z  A
1988-06-02 D62610 496.62NGVD291Z  A
1988-06-02 D62611 495.93NAVD881Z  A
1988-06-02 D7201923.38  1Z  A
1988-07-01 D62610 496.73NGVD291Z  A
1988-07-01 D62611 496.04NAVD881Z  A
1988-07-01 D7201923.27  1Z  A
1988-08-03 D62610 495.63NGVD291Z  A
1988-08-03 D62611 494.94NAVD881Z  A
1988-08-03 D7201924.37  1Z  A
1988-08-31 D62610 494.73NGVD291Z  A
1988-08-31 D62611 494.04NAVD881Z  A
1988-08-31 D7201925.27  1Z  A
1988-09-28 D62610 493.52NGVD291Z  A
1988-09-28 D62611 492.83NAVD881Z  A
1988-09-28 D7201926.48  1Z  A
1988-11-03 D62610 492.75NGVD291Z  A
1988-11-03 D62611 492.06NAVD881Z  A
1988-11-03 D7201927.25  1Z  A
1988-12-02 D62610 492.16NGVD291Z  A
1988-12-02 D62611 491.47NAVD881Z  A
1988-12-02 D7201927.84  1Z  A
1989-01-02 D62610 491.81NGVD291Z  A
1989-01-02 D62611 491.12NAVD881Z  A
1989-01-02 D7201928.19  1Z  A
1989-02-01 D62610 492.30NGVD291Z  A
1989-02-01 D62611 491.61NAVD881Z  A
1989-02-01 D7201927.70  1Z  A
1989-03-01 D62610 493.13NGVD291Z  A
1989-03-01 D62611 492.44NAVD881Z  A
1989-03-01 D7201926.87  1Z  A
1989-04-07 D62610 494.45NGVD291Z  A
1989-04-07 D62611 493.76NAVD881Z  A
1989-04-07 D7201925.55  1Z  A
1989-05-04 D62610 495.88NGVD291Z  A
1989-05-04 D62611 495.19NAVD881Z  A
1989-05-04 D7201924.12  1Z  A
1989-05-31 D62610 497.40NGVD291Z  A
1989-05-31 D62611 496.71NAVD881Z  A
1989-05-31 D7201922.60  1Z  A
1989-07-03 D62610 498.81NGVD291Z  A
1989-07-03 D62611 498.12NAVD881Z  A
1989-07-03 D7201921.19  1Z  A
1989-08-02 D62610 498.79NGVD291Z  A
1989-08-02 D62611 498.10NAVD881Z  A
1989-08-02 D7201921.21  1Z  A
1989-09-01 D62610 497.75NGVD291Z  A
1989-09-01 D62611 497.06NAVD881Z  A
1989-09-01 D7201922.25  1Z  A
1989-09-28 D62610 496.48NGVD291Z  A
1989-09-28 D62611 495.79NAVD881Z  A
1989-09-28 D7201923.52  1Z  A
1989-11-02 D62610 495.60NGVD291Z  A
1989-11-02 D62611 494.91NAVD881Z  A
1989-11-02 D7201924.40  1Z  A
1989-12-01 D62610 495.35NGVD291Z  A
1989-12-01 D62611 494.66NAVD881Z  A
1989-12-01 D7201924.65  1Z  A
1990-01-02 D62610 494.70NGVD291Z  A
1990-01-02 D62611 494.01NAVD881Z  A
1990-01-02 D7201925.30  1Z  A
1990-01-31 D62610 494.97NGVD291Z  A
1990-01-31 D62611 494.28NAVD881Z  A
1990-01-31 D7201925.03  1Z  A
1990-03-02 D62610 496.19NGVD291Z  A
1990-03-02 D62611 495.50NAVD881Z  A
1990-03-02 D7201923.81  1Z  A
1990-04-02 D62610 496.53NGVD291Z  A
1990-04-02 D62611 495.84NAVD881Z  A
1990-04-02 D7201923.47  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.