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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 2008-05-01 2024-09-25
n/a USGS Active Groundwater Level Network Site 2008-01-01 2021-01-01
Water Data for the Nation inventory

Monitoring location 381509076351401 is associated with a Well in St. Mary's County, Maryland. Water data back to 2008 are available online.

Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
381509076351401 n/a
Site name
SM Dd 81 n/a
Site type
Well
GW
DMS latitude 381522 n/a
DMS longitude 0763505 n/a
Decimal latitude 38.2561111 n/a
Decimal longitude -76.5847222 n/a
Latitude-longitude method
Interpolated from Digital MAP. N
Latitude-longitude accuracy
Accurate to + or - 1 sec. S
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
St. Mary's County 037
Country US n/a
Land net location description n/a
Name of location map Hollywood n/a
Scale of location map 24000 n/a
Altitude of Gage/land surface 113 feet n/a
Method altitude determined Light Detection And Ranging, airplane J
Altitude accuracy 2 feet n/a
Altitude datum
North American Vertical Datum of 1988 NAVD88
Subbasin hydrologic unit
Lower Potomac 02070011
Drainage basin
n/a
Topographic setting
Hilltop
H
Flags for instruments at site NNNNNNNNNNNNNNNNNNNNNNNNNNNNNN n/a
Date of first construction
20050428 n/a
Date site established or inventoried 20070823 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 YYYY Y n/a
National aquifer Northern Atlantic Coastal Plain aquifer system S100NATLCP
Local aquifer Upper Patapsco Aquifer In the Patapsco Formation 217PPSCU
Local aquifer type
Confined single aquifer C
Well depth 810 feet n/a
Hole depth
920 feet n/a
Source of depth data D n/a
Project number n/a