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Groundwater levels for the Nation

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Agency code = usgs
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  • 384458076380001
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USGS 384458076380001 CA Bb 24

Calvert County, Maryland
Latitude  38°44'58", Longitude  76°38'00" NAD27
Land-surface elevation 137.03 feet above NGVD29
The depth of the well is 542 feet below land surface.
The depth of the hole is 542 feet below land surface.
This well is completed in the Northern Atlantic Coastal Plain aquifer system (S100NATLCP) national aquifer.
This well is completed in the Magothy Aquifer (211MGTY) 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
1970-08-20 D62610 17.03NGVD291L  A
1970-08-20 D62611 16.10NAVD881L  A
1970-08-20 D72019120.00  1L  A
1975-04-05 D62610 15.49NGVD291Z  A
1975-04-05 D62611 14.56NAVD881Z  A
1975-04-05 D72019121.54  1Z  A
1975-05-13 D62610 15.29NGVD291Z  A
1975-05-13 D62611 14.36NAVD881Z  A
1975-05-13 D72019121.74  1Z  A
1975-09-12 D62610 13.97NGVD291Z  A
1975-09-12 D62611 13.04NAVD881Z  A
1975-09-12 D72019123.06  1Z  A
1976-04-09 D62610 14.87NGVD291Z  A
1976-04-09 D62611 13.94NAVD881Z  A
1976-04-09 D72019122.16  1Z  A
1976-09-13 D62610 10.99NGVD291Z  A
1976-09-13 D62611 10.06NAVD881Z  A
1976-09-13 D72019126.04  1Z  A
1977-04-12 D62610 12.00NGVD291Z  A
1977-04-12 D62611 11.07NAVD881Z  A
1977-04-12 D72019125.03  1Z  A
1977-09-13 D62610 10.20NGVD291Z  A
1977-09-13 D62611 9.27NAVD881Z  A
1977-09-13 D72019126.83  1Z  A
1978-04-10 D62610 11.96NGVD291Z  A
1978-04-10 D62611 11.03NAVD881Z  A
1978-04-10 D72019125.07  1Z  A
1978-09-28 D62610 9.86NGVD291Z  A
1978-09-28 D62611 8.93NAVD881Z  A
1978-09-28 D72019127.17  1Z  A
1979-03-22 D62610 11.66NGVD291Z  A
1979-03-22 D62611 10.73NAVD881Z  A
1979-03-22 D72019125.37  1Z  A
1979-09-10 D62610 10.84NGVD291Z  A
1979-09-10 D62611 9.91NAVD881Z  A
1979-09-10 D72019126.19  1Z  A
1980-03-17 D62610 9.92NGVD291Z  A
1980-03-17 D62611 8.99NAVD881Z  A
1980-03-17 D72019127.11  1Z  A
1980-08-25 D62610 8.12NGVD291Z  A
1980-08-25 D62611 7.19NAVD881Z  A
1980-08-25 D72019128.91  1Z  A
1981-04-09 D62610 5.54NGVD291Z  A
1981-04-09 D62611 4.61NAVD881Z  A
1981-04-09 D72019131.49  1Z  A
1981-09-10 D62610 6.19NGVD291Z  A
1981-09-10 D62611 5.26NAVD881Z  A
1981-09-10 D72019130.84  1Z  A
1982-03-31 D62610 7.09NGVD291Z  A
1982-03-31 D62611 6.16NAVD881Z  A
1982-03-31 D72019129.94  1Z  A
1982-09-03 D62610 4.94NGVD291Z  A
1982-09-03 D62611 4.01NAVD881Z  A
1982-09-03 D72019132.09  1Z  A
1983-03-31 D62610 5.55NGVD291Z  A
1983-03-31 D62611 4.62NAVD881Z  A
1983-03-31 D72019131.48  1Z  A
1983-09-13 D62610 0.77NGVD291Z  A
1983-09-13 D62611 -0.16NAVD881Z  A
1983-09-13 D72019136.26  1Z  A
1984-03-30 D62610 3.40NGVD291Z  A
1984-03-30 D62611 2.47NAVD881Z  A
1984-03-30 D72019133.63  1Z  A
1984-09-06 D62610 2.26NGVD291Z  A
1984-09-06 D62611 1.33NAVD881Z  A
1984-09-06 D72019134.77  1Z  A
1985-03-22 D62610 2.41NGVD291Z  A
1985-03-22 D62611 1.48NAVD881Z  A
1985-03-22 D72019134.62  1Z  A
1985-09-11 D62610 0.84NGVD291Z  A
1985-09-11 D62611 -0.09NAVD881Z  A
1985-09-11 D72019136.19  1Z  A
1986-03-25 D62610 1.61NGVD291Z  A
1986-03-25 D62611 0.68NAVD881Z  A
1986-03-25 D72019135.42  1Z  A
1986-09-10 D62610 -1.29NGVD291Z  A
1986-09-10 D62611 -2.22NAVD881Z  A
1986-09-10 D72019138.32  1Z  A
1987-04-07 D62610 1.00NGVD291Z  A
1987-04-07 D62611 0.07NAVD881Z  A
1987-04-07 D72019136.03  1Z  A
1987-09-02 D62610 -2.80NGVD291Z  A
1987-09-02 D62611 -3.73NAVD881Z  A
1987-09-02 D72019139.83  1Z  A
1988-04-13 D62610 -1.63NGVD291Z  A
1988-04-13 D62611 -2.56NAVD881Z  A
1988-04-13 D72019138.66  1Z  A
1989-04-11 D62610 -1.58NGVD291Z  A
1989-04-11 D62611 -2.51NAVD881Z  A
1989-04-11 D72019138.61  1Z  A
1989-09-20 D62610 -2.90NGVD291Z  A
1989-09-20 D62611 -3.83NAVD881Z  A
1989-09-20 D72019139.93  1Z  A
1990-04-12 D62610 -2.54NGVD29PZ  A
1990-04-12 D62611 -3.47NAVD88PZ  A
1990-04-12 D72019139.57  PZ  A
1990-09-21 D62610 -4.63NGVD291Z  A
1990-09-21 D62611 -5.56NAVD881Z  A
1990-09-21 D72019141.66  1Z  A
1991-04-10 D62610 -3.06NGVD291Z  A
1991-04-10 D62611 -3.99NAVD881Z  A
1991-04-10 D72019140.09  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
StatusPPumping
Method of measurementLInterpreted from geophysical logs.
Method of measurementZOther.
Measuring agencyNot determined
Source of measurementNot determined
Water-level approval statusAApproved for publication -- Processing and review completed.