Agency
U.S. Geological Survey
USGS
Site identification number
390946077461001
n/a
Site name
48X 19
n/a
Site type
Well
GW
DMS latitude
390946.41
n/a
DMS longitude
0774608.7
n/a
Decimal latitude
39.16289167
n/a
Decimal longitude
-77.7690833
n/a
Latitude-longitude method
Mapping grade GPS unit (handheld accuracy range 12 to 40 ft)
G
Latitude-longitude accuracy
Accurate to + or - .01 sec (Differentially-Corrected GPS).
H
Latitude-longitude datum
North American Datum of 1983
NAD83
Decimal Latitude-longitude datum
North American Datum of 1983
NAD83
District
Maryland
24
State
Virginia
51
County
Loudoun County
107
Country
US
n/a
Land net location description
n/a
Name of location map
ROUND HILL
n/a
Scale of location map
24000
n/a
Altitude of Gage/land surface
669
feet
n/a
Method altitude determined
Interpolated from topographic map.
M
Altitude accuracy
10
feet
n/a
Altitude datum
National Geodetic Vertical Datum of 1929
NGVD29
Subbasin hydrologic unit
Middle Potomac-Catoctin
02070008
Drainage basin
n/a
Topographic setting
Hillside
S
Flags for instruments at site
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
n/a
Date of first construction
1974
n/a
Date site established or inventoried
19940622
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
YYNNNNNN
n/a
National aquifer
Piedmont and Blue Ridge crystalline-rock aquifers
N400PDMBRX
Local aquifer
n/a
Local aquifer type
n/a
Well depth
200
feet
n/a
Hole depth
200
feet
n/a
Source of depth data
Z
n/a
Project number
442410200
n/a
