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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 =
  • 420240092535001
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USGS 420240092535001 084N18W36BDB 1996NAWQA City of Marshalltown

Marshall County, Iowa
Latitude  42°02'40.2", Longitude  92°53'50.7" NAD83
Land-surface elevation 875 feet above NGVD29
The depth of the well is 32.5 feet below land surface.
This well is completed in the Sand and gravel aquifers (glaciated regions) (N100GLCIAL) national aquifer.
This well is completed in the Holocene Alluvium (111ALVM) local aquifer.
Output formats
Table of data
Tab-separated data
Graph of data
Reselect period
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
1997-07-16 D62610 863.17NGVD291SUSGSSP
1997-07-16 D62611 863.22NAVD881SUSGSSP
1997-07-16 D7201911.83  1SUSGSSP
2005-06-0716:15 UTCm62610 862.51NGVD291TUSGSSA
2005-06-0716:15 UTCm62611 862.56NAVD881TUSGSSA
2005-06-0716:15 UTCm7201912.49  1TUSGSSA

Explanation
SectionCodeDescription
Water-level date-time accuracyDDate is accurate to the Day
Water-level date-time accuracymDate is accurate to the Minute
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 measurementSSteel-tape measurement.
Method of measurementTElectric-tape measurement.
Measuring agencyUSGSU.S. Geological Survey
Source of measurementSMeasured by personnel of reporting agency.
Water-level approval statusAApproved for publication -- Processing and review completed.
Water-level approval statusPProvisional data subject to revision.