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Important Inventory Page

USGS Parameter Group Data Types Start Date End Date
Physical Groundwater Levels 1991-12-31 2024-09-19
n/a USGS Active Groundwater Level Network Site 1991-01-01 2020-01-01
Water Data for the Nation inventory

Monitoring location 383734077044901 is associated with a Well in Charles County, Maryland. Water data back to 1991 are available online.

Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
383734077044901 n/a
Site name
CH Bd 50 n/a
Site type
Well
GW
DMS latitude 383735.9 n/a
DMS longitude 0770446.6 n/a
Decimal latitude 38.62663889 n/a
Decimal longitude -77.0796111 n/a
Latitude-longitude method
Mapping grade GPS unit (handheld accuracy range 12 to 40 ft) G
Latitude-longitude accuracy
Accurate to + or - .1 sec (Differentially-Corrected GPS). 1
Latitude-longitude datum
North American Datum of 1983 NAD83
Decimal Latitude-longitude datum North American Datum of 1983 NAD83
District
Maryland 24
State
Maryland 24
County
Charles County 017
Country US n/a
Land net location description n/a
Name of location map MOUNT VERNON,VA-MD n/a
Scale of location map 24000 n/a
Altitude of Gage/land surface 180 feet n/a
Method altitude determined Interpolated from topographic map. M
Altitude accuracy 005 feet n/a
Altitude datum
National Geodetic Vertical Datum of 1929 NGVD29
Subbasin hydrologic unit
Middle Potomac-Anacostia-Occoquan 02070010
Drainage basin
n/a
Topographic setting
n/a
Flags for instruments at site NNNNNNNNNNNNNNNNNNNNNNNNNNNNNN n/a
Date of first construction
19911231 n/a
Date site established or inventoried 19950829 n/a
Drainage area
n/a
Contributing drainage area n/a
Time Zone abbreviation EST n/a
Site honors Daylight Saving Time
Y n/a
Data reliability
Unchecked data. U
Data-other GW files YYYYNYNN n/a
National aquifer Northern Atlantic Coastal Plain aquifer system S100NATLCP
Local aquifer Lower Patapsco Aquifer In the Patapsco Formation 217PPSCL
Local aquifer type
Confined single aquifer C
Well depth 658 feet n/a
Hole depth
724 feet n/a
Source of depth data D n/a
Project number n/a

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