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Important for you to know:

  • New to WDFN: see current water conditions throughout the state using the new State Pages. Filter by continuous data type and age of data, view latest values, and link to graphing options to explore the data further. To learn more, read our announcement on the Water Data for the Nation blog.
Important Inventory Page

USGS Parameter Group Data Types Start Date End Date
Physical Groundwater Levels 1976-09-21 2024-09-18
n/a USGS Active Groundwater Level Network Site 1976-01-01 2021-01-01
n/a USGS Annual Water Data Reports Site 2006-01-01 2011-01-01
Water Data for the Nation inventory

Monitoring location 382654077152501 is associated with a Test hole not completed as a well in Charles County, Maryland. Water data back to 1976 are available online.

Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
382654077152501 n/a
Site name
CH Da 18 n/a
Site type
Test hole not completed as a well
GW-TH
DMS latitude 382654.0 n/a
DMS longitude 0771323.2 n/a
Decimal latitude 38.4483333 n/a
Decimal longitude -77.2231111 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 WIDEWATER, VA-MD n/a
Scale of location map 24000 n/a
Altitude of Gage/land surface 89.90 feet n/a
Method altitude determined Interpolated from topographic map. M
Altitude accuracy 2 feet n/a
Altitude datum
National Geodetic Vertical Datum of 1929 NGVD29
Subbasin hydrologic unit
Lower Potomac 02070011
Drainage basin
n/a
Topographic setting
n/a
Flags for instruments at site NNNNNNNNNNNNNNNNNNNNNNNNNNNNNN n/a
Date of first construction
197511 n/a
Date site established or inventoried 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
Data have been checked by the reporting agency. C
Data-other GW files YYNNNYNN n/a
National aquifer Northern Atlantic Coastal Plain aquifer system S100NATLCP
Local aquifer Patuxent Formation 217PTXN
Local aquifer type
Confined single aquifer C
Well depth 740 feet n/a
Hole depth
772 feet n/a
Source of depth data D n/a
Project number n/a