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Groundwater levels for the Nation

! Important: Next Generation Monitoring Location Page

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Agency code = usgs
site_no list =
  • 414930090384901
Minimum number of levels = 1
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USGS 414930090384901 081N03E18ADA 1937Grand Mound 1

Clinton County, Iowa
Latitude  41°49'25", Longitude  90°38'55" NAD27
Land-surface elevation 725 feet above NGVD29
The depth of the well is 253 feet below land surface.
The depth of the hole is 253 feet below land surface.
This well is completed in the Niagaran Series (355NIGR) local aquifer.
Output formats
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Date Time
?
 
Water-level
date-time
accuracy
?
 
Parameter
code
Water
level,
feet
below
land
surface
Water
level,
feet
above
specific
vertical
datum
Referenced
vertical
datum
?
 
Status
?
 
Method of
measurement
?
 
Measuring
agency
?
 
Source of
measurement
?
 
Water-level
approval
status
1942 Y62610 689.00NGVD291L  A
1942 Y62611 688.86NAVD881L  A
1942 Y7201936.00  1L  A

Explanation
SectionCodeDescription
Water-level date-time accuracyYDate is accurate to the Year
Parameter code62610Groundwater level above NGVD 1929, feet
Parameter code62611Groundwater level above NAVD 1988, feet
Parameter code72019Depth to water level, feet below land surface
Referenced vertical datumNAVD88North American Vertical Datum of 1988
Referenced vertical datumNGVD29National Geodetic Vertical Datum of 1929
Status1Static
Method of measurementLInterpreted from geophysical logs.
Measuring agencyNot determined
Source of measurementNot determined
Water-level approval statusAApproved for publication -- Processing and review completed.