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Groundwater levels for the Nation

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Agency code = usgs
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  • 391323076463601
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USGS 391323076463601 HO Cf 91

Howard County, Maryland
Latitude  39°13'23", Longitude  76°46'36" NAD27
Land-surface elevation 390 feet above NGVD29
The depth of the well is 272 feet below land surface.
The depth of the hole is 272 feet below land surface.
This well is completed in the Mount Washington Amphibolite (300MWSG) 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
1988-09-22 D62610 365.21NGVD291Z  A
1988-09-22 D62611 364.50NAVD881Z  A
1988-09-22 D7201924.79  1Z  A
1988-09-29 D62610 365.10NGVD291Z  A
1988-09-29 D62611 364.39NAVD881Z  A
1988-09-29 D7201924.90  1Z  A
1988-10-31 D62610 364.52NGVD291Z  A
1988-10-31 D62611 363.81NAVD881Z  A
1988-10-31 D7201925.48  1Z  A
1988-11-30 D62610 365.52NGVD291Z  A
1988-11-30 D62611 364.81NAVD881Z  A
1988-11-30 D7201924.48  1Z  A
1988-12-30 D62610 364.95NGVD291Z  A
1988-12-30 D62611 364.24NAVD881Z  A
1988-12-30 D7201925.05  1Z  A
1989-01-30 D62610 367.27NGVD291Z  A
1989-01-30 D62611 366.56NAVD881Z  A
1989-01-30 D7201922.73  1Z  A
1989-03-02 D62610 369.34NGVD291Z  A
1989-03-02 D62611 368.63NAVD881Z  A
1989-03-02 D7201920.66  1Z  A
1989-04-03 D62610 370.95NGVD291Z  A
1989-04-03 D62611 370.24NAVD881Z  A
1989-04-03 D7201919.05  1Z  A
1989-05-03 D62610 370.35NGVD291Z  A
1989-05-03 D62611 369.64NAVD881Z  A
1989-05-03 D7201919.65  1Z  A
1989-05-30 D62610 373.28NGVD291Z  A
1989-05-30 D62611 372.57NAVD881Z  A
1989-05-30 D7201916.72  1Z  A
1989-07-03 D62610 370.65NGVD291Z  A
1989-07-03 D62611 369.94NAVD881Z  A
1989-07-03 D7201919.35  1Z  A
1989-08-02 D62610 370.27NGVD291Z  A
1989-08-02 D62611 369.56NAVD881Z  A
1989-08-02 D7201919.73  1Z  A
1989-09-01 D62610 368.02NGVD291Z  A
1989-09-01 D62611 367.31NAVD881Z  A
1989-09-01 D7201921.98  1Z  A
1989-09-29 D62610 367.62NGVD291Z  A
1989-09-29 D62611 366.91NAVD881Z  A
1989-09-29 D7201922.38  1Z  A
1989-10-30 D62610 368.13NGVD291Z  A
1989-10-30 D62611 367.42NAVD881Z  A
1989-10-30 D7201921.87  1Z  A
1989-11-30 D62610 368.68NGVD291Z  A
1989-11-30 D62611 367.97NAVD881Z  A
1989-11-30 D7201921.32  1Z  A
1989-12-28 D62610 367.17NGVD291Z  A
1989-12-28 D62611 366.46NAVD881Z  A
1989-12-28 D7201922.83  1Z  A
1990-01-30 D62610 370.72NGVD291Z  A
1990-01-30 D62611 370.01NAVD881Z  A
1990-01-30 D7201919.28  1Z  A
1990-03-01 D62610 370.12NGVD291Z  A
1990-03-01 D62611 369.41NAVD881Z  A
1990-03-01 D7201919.88  1Z  A
1990-03-28 D62610 368.63NGVD291Z  A
1990-03-28 D62611 367.92NAVD881Z  A
1990-03-28 D7201921.37  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.