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Groundwater levels for the Nation

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Agency code = usgs
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  • 391440076555401
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USGS 391440076555401 HO Cd 20

Howard County, Maryland
Latitude  39°14'41", Longitude  76°55'51" NAD27
Land-surface elevation 425.70 feet above NGVD29
The depth of the well is 96 feet below land surface.
The depth of the hole is 100 feet below land surface.
This well is completed in the Loch Raven Schist (370LCRV) local aquifer.
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Table of data
Tab-separated data
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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
1986-11-1214:15 UTCm62610 415.16NGVD291Z  A
1986-11-1214:15 UTCm62611 414.43NAVD881Z  A
1986-11-1214:15 UTCm7201910.54  1Z  A
1986-12-0418:45 UTCm62610 415.79NGVD291Z  A
1986-12-0418:45 UTCm62611 415.06NAVD881Z  A
1986-12-0418:45 UTCm720199.91  1Z  A
1986-12-30 D62610 416.64NGVD291Z  A
1986-12-30 D62611 415.91NAVD881Z  A
1986-12-30 D720199.06  1Z  A
1987-03-0515:40 UTCm62610 417.95NGVD291Z  A
1987-03-0515:40 UTCm62611 417.22NAVD881Z  A
1987-03-0515:40 UTCm720197.75  1Z  A
1987-03-09 D62610 416.02NGVD291Z  A
1987-03-09 D62611 415.29NAVD881Z  A
1987-03-09 D720199.68  1Z  A
1987-04-0914:30 UTCm62610 419.56NGVD291Z  A
1987-04-0914:30 UTCm62611 418.83NAVD881Z  A
1987-04-0914:30 UTCm720196.14  1Z  A
1987-05-1313:55 UTCm62610 418.68NGVD291Z  A
1987-05-1313:55 UTCm62611 417.95NAVD881Z  A
1987-05-1313:55 UTCm720197.02  1Z  A
1987-06-1116:18 UTCm62610 418.64NGVD291Z  A
1987-06-1116:18 UTCm62611 417.91NAVD881Z  A
1987-06-1116:18 UTCm720197.06  1Z  A
1987-07-0815:35 UTCm62610 418.38NGVD291Z  A
1987-07-0815:35 UTCm62611 417.65NAVD881Z  A
1987-07-0815:35 UTCm720197.32  1Z  A
1987-08-0516:16 UTCm62610 417.85NGVD291Z  A
1987-08-0516:16 UTCm62611 417.12NAVD881Z  A
1987-08-0516:16 UTCm720197.85  1Z  A
1987-08-3116:45 UTCm62610 417.29NGVD291Z  A
1987-08-3116:45 UTCm62611 416.56NAVD881Z  A
1987-08-3116:45 UTCm720198.41  1Z  A
1987-10-0816:10 UTCm62610 417.07NGVD291Z  A
1987-10-0816:10 UTCm62611 416.34NAVD881Z  A
1987-10-0816:10 UTCm720198.63  1Z  A
1987-10-0920:42 UTCm62610 417.05NGVD291Z  A
1987-10-0920:42 UTCm62611 416.32NAVD881Z  A
1987-10-0920:42 UTCm720198.65  1Z  A
1987-11-1917:10 UTCm62610 417.29NGVD291Z  A
1987-11-1917:10 UTCm62611 416.56NAVD881Z  A
1987-11-1917:10 UTCm720198.41  1Z  A
1987-11-2018:40 UTCm62610 417.38NGVD291Z  A
1987-11-2018:40 UTCm62611 416.65NAVD881Z  A
1987-11-2018:40 UTCm720198.32  1Z  A
1988-01-2120:15 UTCm62610 418.42NGVD291Z  A
1988-01-2120:15 UTCm62611 417.69NAVD881Z  A
1988-01-2120:15 UTCm720197.28  1Z  A
1988-03-1715:25 UTCm62610 418.81NGVD291Z  A
1988-03-1715:25 UTCm62611 418.08NAVD881Z  A
1988-03-1715:25 UTCm720196.89  1Z  A
1988-04-1415:00 UTCm62610 419.02NGVD291Z  A
1988-04-1415:00 UTCm62611 418.29NAVD881Z  A
1988-04-1415:00 UTCm720196.68  1Z  A
1988-06-0915:25 UTCm62610 419.57NGVD291Z  A
1988-06-0915:25 UTCm62611 418.84NAVD881Z  A
1988-06-0915:25 UTCm720196.13  1Z  A
1988-07-0614:50 UTCm62610 418.90NGVD291Z  A
1988-07-0614:50 UTCm62611 418.17NAVD881Z  A
1988-07-0614:50 UTCm720196.80  1Z  A
1988-08-1820:25 UTCm62610 418.02NGVD291Z  A
1988-08-1820:25 UTCm62611 417.29NAVD881Z  A
1988-08-1820:25 UTCm720197.68  1Z  A
1988-08-2316:45 UTCm62610 417.94NGVD291Z  A
1988-08-2316:45 UTCm62611 417.21NAVD881Z  A
1988-08-2316:45 UTCm720197.76  1Z  A
1988-09-1413:55 UTCm62610 417.65NGVD291Z  A
1988-09-1413:55 UTCm62611 416.92NAVD881Z  A
1988-09-1413:55 UTCm720198.05  1Z  A
1988-10-1913:25 UTCm62610 417.18NGVD291Z  A
1988-10-1913:25 UTCm62611 416.45NAVD881Z  A
1988-10-1913:25 UTCm720198.52  1Z  A
1988-11-2314:30 UTCm62610 417.09NGVD291Z  A
1988-11-2314:30 UTCm62611 416.36NAVD881Z  A
1988-11-2314:30 UTCm720198.61  1Z  A
1988-12-2213:00 UTCm62610 416.81NGVD291Z  A
1988-12-2213:00 UTCm62611 416.08NAVD881Z  A
1988-12-2213:00 UTCm720198.89  1Z  A
1989-01-1916:10 UTCm62610 417.39NGVD291Z  A
1989-01-1916:10 UTCm62611 416.66NAVD881Z  A
1989-01-1916:10 UTCm720198.31  1Z  A
1989-02-1617:15 UTCm62610 417.09NGVD291Z  A
1989-02-1617:15 UTCm62611 416.36NAVD881Z  A
1989-02-1617:15 UTCm720198.61  1Z  A
1989-04-0516:00 UTCm62610 418.36NGVD291Z  A
1989-04-0516:00 UTCm62611 417.63NAVD881Z  A
1989-04-0516:00 UTCm720197.34  1Z  A
1989-05-0414:05 UTCm62610 418.48NGVD291Z  A
1989-05-0414:05 UTCm62611 417.75NAVD881Z  A
1989-05-0414:05 UTCm720197.22  1Z  A
1989-06-0114:40 UTCm62610 420.27NGVD291Z  A
1989-06-0114:40 UTCm62611 419.54NAVD881Z  A
1989-06-0114:40 UTCm720195.43  1Z  A
1989-06-2918:00 UTCm62610 421.09NGVD291Z  A
1989-06-2918:00 UTCm62611 420.36NAVD881Z  A
1989-06-2918:00 UTCm720194.61  1Z  A
1989-09-1416:20 UTCm62610 420.35NGVD291Z  A
1989-09-1416:20 UTCm62611 419.62NAVD881Z  A
1989-09-1416:20 UTCm720195.35  1Z  A
1989-11-0614:20 UTCm62610 420.35NGVD291Z  A
1989-11-0614:20 UTCm62611 419.62NAVD881Z  A
1989-11-0614:20 UTCm720195.35  1Z  A
1989-12-1414:30 UTCm62610 419.94NGVD291Z  A
1989-12-1414:30 UTCm62611 419.21NAVD881Z  A
1989-12-1414:30 UTCm720195.76  1Z  A
1990-01-1016:00 UTCm62610 420.06NGVD291Z  A
1990-01-1016:00 UTCm62611 419.33NAVD881Z  A
1990-01-1016:00 UTCm720195.64  1Z  A
1990-02-1414:20 UTCm62610 420.33NGVD291Z  A
1990-02-1414:20 UTCm62611 419.60NAVD881Z  A
1990-02-1414:20 UTCm720195.37  1Z  A
1990-03-1921:00 UTCm62610 420.24NGVD291Z  A
1990-03-1921:00 UTCm62611 419.51NAVD881Z  A
1990-03-1921:00 UTCm720195.46  1Z  A
1990-04-2416:25 UTCm62610 420.44NGVD291Z  A
1990-04-2416:25 UTCm62611 419.71NAVD881Z  A
1990-04-2416:25 UTCm720195.26  1Z  A
1990-05-1616:10 UTCm62610 420.74NGVD291Z  A
1990-05-1616:10 UTCm62611 420.01NAVD881Z  A
1990-05-1616:10 UTCm720194.96  1Z  A
1990-06-1916:05 UTCm62610 420.83NGVD291Z  A
1990-06-1916:05 UTCm62611 420.10NAVD881Z  A
1990-06-1916:05 UTCm720194.87  1Z  A
1990-07-2416:30 UTCm62610 420.27NGVD291Z  A
1990-07-2416:30 UTCm62611 419.54NAVD881Z  A
1990-07-2416:30 UTCm720195.43  1Z  A
1990-08-1615:25 UTCm62610 420.05NGVD291Z  A
1990-08-1615:25 UTCm62611 419.32NAVD881Z  A
1990-08-1615:25 UTCm720195.65  1Z  A
1990-09-2716:10 UTCm62610 419.39NGVD291Z  A
1990-09-2716:10 UTCm62611 418.66NAVD881Z  A
1990-09-2716:10 UTCm720196.31  1Z  A
1990-11-1417:00 UTCm62610 419.34NGVD291Z  A
1990-11-1417:00 UTCm62611 418.61NAVD881Z  A
1990-11-1417:00 UTCm720196.36  1Z  A
1991-01-1520:20 UTCm62610 420.26NGVD291Z  A
1991-01-1520:20 UTCm62611 419.53NAVD881Z  A
1991-01-1520:20 UTCm720195.44  1Z  A
1991-02-2714:05 UTCm62610 420.08NGVD291Z  A
1991-02-2714:05 UTCm62611 419.35NAVD881Z  A
1991-02-2714:05 UTCm720195.62  1Z  A
1991-04-0313:05 UTCm62610 420.40NGVD291Z  A
1991-04-0313:05 UTCm62611 419.67NAVD881Z  A
1991-04-0313:05 UTCm720195.30  1Z  A
1991-06-0717:05 UTCm62610 419.94NGVD291Z  A
1991-06-0717:05 UTCm62611 419.21NAVD881Z  A
1991-06-0717:05 UTCm720195.76  1Z  A
1991-07-1518:05 UTCm62610 419.08NGVD291Z  A
1991-07-1518:05 UTCm62611 418.35NAVD881Z  A
1991-07-1518:05 UTCm720196.62  1Z  A
1991-07-1616:35 UTCm62610 419.08NGVD291Z  A
1991-07-1616:35 UTCm62611 418.35NAVD881Z  A
1991-07-1616:35 UTCm720196.62  1Z  A
1991-09-0918:15 UTCm62610 417.96NGVD291Z  A
1991-09-0918:15 UTCm62611 417.23NAVD881Z  A
1991-09-0918:15 UTCm720197.74  1Z  A
1991-10-2920:05 UTCm62610 417.42NGVD291Z  A
1991-10-2920:05 UTCm62611 416.69NAVD881Z  A
1991-10-2920:05 UTCm720198.28  1Z  A
1991-12-2015:00 UTCm62610 417.61NGVD291Z  A
1991-12-2015:00 UTCm62611 416.88NAVD881Z  A
1991-12-2015:00 UTCm720198.09  1Z  A
1992-01-3015:45 UTCm62610 417.55NGVD291Z  A
1992-01-3015:45 UTCm62611 416.82NAVD881Z  A
1992-01-3015:45 UTCm720198.15  1Z  A
1992-03-2020:41 UTCm62610 417.67NGVD291Z  A
1992-03-2020:41 UTCm62611 416.94NAVD881Z  A
1992-03-2020:41 UTCm720198.03  1Z  A
1992-05-0114:35 UTCm62610 418.08NGVD291Z  A
1992-05-0114:35 UTCm62611 417.35NAVD881Z  A
1992-05-0114:35 UTCm720197.62  1Z  A
1992-06-2220:05 UTCm62610 417.94NGVD291Z  A
1992-06-2220:05 UTCm62611 417.21NAVD881Z  A
1992-06-2220:05 UTCm720197.76  1Z  A
1992-09-0317:30 UTCm62610 417.06NGVD291Z  A
1992-09-0317:30 UTCm62611 416.33NAVD881Z  A
1992-09-0317:30 UTCm720198.64  1Z  A
1992-10-0514:55 UTCm62610 416.71NGVD291Z  A
1992-10-0514:55 UTCm62611 415.98NAVD881Z  A
1992-10-0514:55 UTCm720198.99  1Z  A
1992-11-25 D62610 417.22NGVD291Z  A
1992-11-25 D62611 416.49NAVD881Z  A
1992-11-25 D720198.48  1Z  A
1993-01-27 D62610 418.70NGVD291Z  A
1993-01-27 D62611 417.97NAVD881Z  A
1993-01-27 D720197.00  1Z  A
1993-02-24 D62610 418.85NGVD291Z  A
1993-02-24 D62611 418.12NAVD881Z  A
1993-02-24 D720196.85  1Z  A
1993-05-04 D62610 422.54NGVD291Z  A
1993-05-04 D62611 421.81NAVD881Z  A
1993-05-04 D720193.16  1Z  A
1995-11-21 D62610 417.55NGVD291Z  A
1995-11-21 D62611 416.82NAVD881Z  A
1995-11-21 D720198.15  1Z  A

Explanation
SectionCodeDescription
Water-level date-time accuracyDDate is accurate to the Day
Water-level date-time accuracymDate is accurate to the Minute
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.