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Groundwater levels for the Nation

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Agency code = usgs
site_no list =
  • 391005076593901
Minimum number of levels = 1
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USGS 391005076593901 HO Cd 191

Howard County, Maryland
Latitude  39°10'05", Longitude  76°59'39" NAD27
Land-surface elevation 340 feet above NGVD29
The depth of the well is 505 feet below land surface.
The depth of the hole is 505 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
1988-01-21 D62610 326.13NGVD291Z  A
1988-01-21 D62611 325.42NAVD881Z  A
1988-01-21 D7201913.87  1Z  A
1988-02-05 D62610 326.81NGVD291Z  A
1988-02-05 D62611 326.10NAVD881Z  A
1988-02-05 D7201913.19  1Z  A
1988-03-31 D62610 327.32NGVD291Z  A
1988-03-31 D62611 326.61NAVD881Z  A
1988-03-31 D7201912.68  1Z  A
1988-05-02 D62610 327.33NGVD291Z  A
1988-05-02 D62611 326.62NAVD881Z  A
1988-05-02 D7201912.67  1Z  A
1988-06-02 D62610 329.17NGVD291Z  A
1988-06-02 D62611 328.46NAVD881Z  A
1988-06-02 D7201910.83  1Z  A
1988-07-01 D62610 328.02NGVD291Z  A
1988-07-01 D62611 327.31NAVD881Z  A
1988-07-01 D7201911.98  1Z  A
1988-08-03 D62610 327.06NGVD291Z  A
1988-08-03 D62611 326.35NAVD881Z  A
1988-08-03 D7201912.94  1Z  A
1988-08-31 D62610 326.43NGVD291Z  A
1988-08-31 D62611 325.72NAVD881Z  A
1988-08-31 D7201913.57  1Z  A
1988-09-28 D62610 325.92NGVD291Z  A
1988-09-28 D62611 325.21NAVD881Z  A
1988-09-28 D7201914.08  1Z  A
1988-11-03 D62610 325.46NGVD291Z  A
1988-11-03 D62611 324.75NAVD881Z  A
1988-11-03 D7201914.54  1Z  A
1988-12-02 D62610 325.03NGVD291Z  A
1988-12-02 D62611 324.32NAVD881Z  A
1988-12-02 D7201914.97  1Z  A
1989-01-02 D62610 324.54NGVD291Z  A
1989-01-02 D62611 323.83NAVD881Z  A
1989-01-02 D7201915.46  1Z  A
1989-05-30 D62610 328.73NGVD291Z  A
1989-05-30 D62611 328.02NAVD881Z  A
1989-05-30 D7201911.27  1Z  A
1989-06-30 D62610 328.97NGVD291Z  A
1989-06-30 D62611 328.26NAVD881Z  A
1989-06-30 D7201911.03  1Z  A
1989-08-01 D62610 328.46NGVD291Z  A
1989-08-01 D62611 327.75NAVD881Z  A
1989-08-01 D7201911.54  1Z  A
1989-08-30 D62610 327.85NGVD291Z  A
1989-08-30 D62611 327.14NAVD881Z  A
1989-08-30 D7201912.15  1Z  A
1989-09-29 D62610 327.24NGVD291Z  A
1989-09-29 D62611 326.53NAVD881Z  A
1989-09-29 D7201912.76  1Z  A
1989-10-30 D62610 326.94NGVD291Z  A
1989-10-30 D62611 326.23NAVD881Z  A
1989-10-30 D7201913.06  1Z  A
1989-11-30 D62610 326.67NGVD291Z  A
1989-11-30 D62611 325.96NAVD881Z  A
1989-11-30 D7201913.33  1Z  A
1989-12-28 D62610 326.27NGVD291Z  A
1989-12-28 D62611 325.56NAVD881Z  A
1989-12-28 D7201913.73  1Z  A
1990-01-30 D62610 327.14NGVD291Z  A
1990-01-30 D62611 326.43NAVD881Z  A
1990-01-30 D7201912.86  1Z  A
1990-03-01 D62610 327.31NGVD291Z  A
1990-03-01 D62611 326.60NAVD881Z  A
1990-03-01 D7201912.69  1Z  A
1990-03-28 D62610 327.12NGVD291Z  A
1990-03-28 D62611 326.41NAVD881Z  A
1990-03-28 D7201912.88  1Z  A
1990-04-27 D62610 328.07NGVD291Z  A
1990-04-27 D62611 327.36NAVD881Z  A
1990-04-27 D7201911.93  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.