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Groundwater levels for the Nation

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USGS 415953091435003 083N08W13CBDA 2009USGS CRM-3A

Linn County, Iowa
Latitude  41°59'53", Longitude  91°43'50" NAD83
Land-surface elevation 727.06 feet above NAVD88
The depth of the well is 42.5 feet below land surface.
The depth of the hole is 42.5 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
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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
2011-06-0616:45 UTCm62610 717.62NGVD291TUSGSSP
2011-06-0616:45 UTCm62611 717.54NAVD881TUSGSSP
2011-06-0616:45 UTCm720199.52  1TUSGSSP
2011-09-1915:15 UTCm62610 718.20NGVD291TUSGSSP
2011-09-1915:15 UTCm62611 718.12NAVD881TUSGSSP
2011-09-1915:15 UTCm720198.94  1TUSGSSP
2011-11-0716:35 UTCm62610 717.38NGVD291TUSGSSP
2011-11-0716:35 UTCm62611 717.30NAVD881TUSGSSP
2011-11-0716:35 UTCm720199.76  1TUSGSSP
2012-03-1519:20 UTCm62610 715.00NGVD291TUSGSSP
2012-03-1519:20 UTCm62611 714.92NAVD881TUSGSSP
2012-03-1519:20 UTCm7201912.14  1TUSGSSP
2012-12-0418:41 UTCm62610 695.89NGVD291TUSGSSA
2012-12-0418:41 UTCm62611 695.81NAVD881TUSGSSA
2012-12-0418:41 UTCm7201931.25  1TUSGSSA
2015-03-1118:40 UTCm62610 718.59NGVD291TUSGSSP
2015-03-1118:40 UTCm62611 718.51NAVD881TUSGSSP
2015-03-1118:40 UTCm720198.55  1TUSGSSP

Explanation
SectionCodeDescription
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 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.