Agency
U.S. Geological Survey
USGS
Site identification number
423108071143201
n/a
Site name
MA-A4W 10 BEDFORD, MA
n/a
Site type
Well
GW
DMS latitude
423107.64
n/a
DMS longitude
0711431.63
n/a
Decimal latitude
42.51878889
n/a
Decimal longitude
-71.2421194
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
Massachusetts
25
State
Massachusetts
25
County
Middlesex County
017
Country
US
n/a
Land net location description
n/a
Name of location map
n/a
Scale of location map
n/a
Altitude of Gage/land surface
95
feet
n/a
Method altitude determined
Interpolated from topographic map.
M
Altitude accuracy
5
feet
n/a
Altitude datum
National Geodetic Vertical Datum of 1929
NGVD29
Subbasin hydrologic unit
Concord
01070005
Drainage basin
n/a
Topographic setting
Flood plain
G
Flags for instruments at site
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
n/a
Date of first construction
20120815
n/a
Date site established or inventoried
20120924
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
Y Y Y
n/a
National aquifer
Sand and gravel aquifers (glaciated regions)
N100GLCIAL
Local aquifer
Stratified Deposits, Undifferentiated
112SRFD
Local aquifer type
Unconfined single aquifer
U
Well depth
30
feet
n/a
Hole depth
30
feet
n/a
Source of depth data
S
n/a
Project number
LH00CRK2800
n/a
