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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
Information Water-quality 1996-11-24 1996-11-24
Inorganics, Major, Metals Water-quality 1996-11-24 1996-11-24
Inorganics, Major, Non-metals Water-quality 1996-11-24 1996-11-24
Inorganics, Minor, metals Water-quality 1996-11-24 1996-11-24
Physical Groundwater Levels, Water-quality 1993-06-25 2024-09-12
n/a USGS Active Groundwater Level Network Site 1993-01-01 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 383645077062401 is associated with a Well in Charles County, Maryland. Water data back to 1993 are available online.

Metadata Element Location Metadata Metadata Code
Agency
U.S. Geological Survey USGS
Site identification number
383645077062401 n/a
Site name
CH Bc 75 n/a
Site type
Well
GW
DMS latitude 383646.9 n/a
DMS longitude 0770621.4 n/a
Decimal latitude 38.61302778 n/a
Decimal longitude -77.1059444 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 PORT TOBACCO, MD n/a
Scale of location map 24000 n/a
Altitude of Gage/land surface 109.64 feet n/a
Method altitude determined Level or other surveyed method. L
Altitude accuracy .50 feet n/a
Altitude datum
National Geodetic Vertical Datum of 1929 NGVD29
Subbasin hydrologic unit
Lower Potomac 02070011
Drainage basin
n/a
Topographic setting
Flat surface
F
Flags for instruments at site NNNNNNNNNNNNNNNNNNNNNNNNNNNNNN n/a
Date of first construction
19930615 n/a
Date site established or inventoried 19930625 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 YYYNNYNN 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 940 feet n/a
Hole depth
1165 feet n/a
Source of depth data R n/a
Project number n/a