Agency
U.S. Geological Survey
USGS
Site identification number
413126090263701
n/a
Site name
18N1W-26.5f1
n/a
Site type
Well
GW
DMS latitude
413126
n/a
DMS longitude
0902637
n/a
Decimal latitude
41.52388889
n/a
Decimal longitude
-90.4436111
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.
S
Latitude-longitude datum
North American Datum of 1983
NAD83
Decimal Latitude-longitude datum
North American Datum of 1983
NAD83
District
Illinois
17
State
Illinois
17
County
Rock Island County
161
Country
US
n/a
Land net location description
NESENWS26 T18N R1W
n/a
Name of location map
SILVIS QUAD
n/a
Scale of location map
24000
n/a
Altitude of Gage/land surface
574.94
feet
n/a
Method altitude determined
Level or other surveyed method.
L
Altitude accuracy
.1
feet
n/a
Altitude datum
National Geodetic Vertical Datum of 1929
NGVD29
Subbasin hydrologic unit
Copperas-Duck
07080101
Drainage basin
n/a
Topographic setting
n/a
Flags for instruments at site
NNNNNNNNNNNNNNNNNNNNNNNNNNNNNN
n/a
Date of first construction
20000402
n/a
Date site established or inventoried
20000608
n/a
Drainage area
n/a
Contributing drainage area
n/a
Time Zone abbreviation
CST
n/a
Site honors Daylight Saving Time
N
n/a
Data reliability
Data have been checked by the reporting agency.
C
Data-other GW files
YYNYYYNN
n/a
National aquifer
Silurian-Devonian aquifers
N400SLRDVN
Local aquifer
Devonian System
340DVNN
Local aquifer type
Unconfined single aquifer
U
Well depth
17
feet
n/a
Hole depth
17
feet
n/a
Source of depth data
S
n/a
Project number
441713500
n/a
