Agency
U.S. Geological Survey
USGS
Site identification number
411859091082201
n/a
Site name
075N03W12AADD Iowa-Illinois Obs 23
n/a
Site type
Well
GW
DMS latitude
411859
n/a
DMS longitude
0910822
n/a
Decimal latitude
41.31641748
n/a
Decimal longitude
-91.1395944
n/a
Latitude-longitude method
Interpolated from MAP.
M
Latitude-longitude accuracy
Accurate to + or - 5 sec.
F
Latitude-longitude datum
North American Datum of 1927
NAD27
Decimal Latitude-longitude datum
North American Datum of 1983
NAD83
District
Iowa
19
State
Iowa
19
County
Louisa County
115
Country
US
n/a
Land net location description
SENENES12 T075N R03W 5
n/a
Name of location map
Letts
n/a
Scale of location map
24000
n/a
Altitude of Gage/land surface
535.83
feet
n/a
Method altitude determined
Level or other surveyed method.
L
Altitude accuracy
10
feet
n/a
Altitude datum
National Geodetic Vertical Datum of 1929
NGVD29
Subbasin hydrologic unit
Copperas-Duck
07080101
Drainage basin
n/a
Topographic setting
Valley flat
V
Flags for instruments at site
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
n/a
Date of first construction
n/a
Date site established or inventoried
n/a
Drainage area
n/a
Contributing drainage area
n/a
Time Zone abbreviation
CST
n/a
Site honors Daylight Saving Time
Y
n/a
Data reliability
Minimal data.
M
Data-other GW files
YNNYNYNN
n/a
National aquifer
Sand and gravel aquifers (glaciated regions)
N100GLCIAL
Local aquifer
Holocene Alluvium
111ALVM
Local aquifer type
Unconfined single aquifer
U
Well depth
25
feet
n/a
Hole depth
n/a
Source of depth data
S
n/a
Project number
461907300
n/a
