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Groundwater levels for the Nation

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Agency code = usgs
site_no list =
  • 415955091433601
Minimum number of levels = 1
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USGS 415955091433601 083N08W13CAAC 1970

Linn County, Iowa
Latitude  41°59'55", Longitude  91°43'38" NAD27
Land-surface elevation 721.79 feet above NGVD29
The depth of the well is 57.3 feet below land surface.
The depth of the hole is 57.3 feet below land surface.
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
1993-11-01 D62610 687.49NGVD291S  A
1993-11-01 D62611 687.41NAVD881S  A
1993-11-01 D7201934.30  1S  A
2020-05-2715:25 UTCm62610 719.27NGVD291TUSGSSA
2020-05-2715:25 UTCm62611 719.19NAVD881TUSGSSA
2020-05-2715:25 UTCm720192.52  1TUSGSSA
2020-07-1415:30 UTCm62610 717.91NGVD291TUSGSSA
2020-07-1415:30 UTCm62611 717.83NAVD881TUSGSSA
2020-07-1415:30 UTCm720193.88  1TUSGSSA
2020-09-2514:42 UTCm62610 715.72NGVD291TUSGSSA
2020-09-2514:42 UTCm62611 715.64NAVD881TUSGSSA
2020-09-2514:42 UTCm720196.07  1TUSGSSA
2021-01-2117:12 UTCm7201952.88   TUSGSSA
2021-01-2117:13 UTCm7201952.88   TUSGSSA
2021-10-2919:16 UTCm62610 715.55NGVD291VUSGSSA
2021-10-2919:16 UTCm62611 715.47NAVD881VUSGSSA
2021-10-2919:16 UTCm720196.24  1VUSGSSA

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
StatusThe reported water-level measurement represents a static level
Status1Static
Method of measurementSSteel-tape measurement.
Method of measurementTElectric-tape measurement.
Method of measurementVCalibrated electric-tape measurement.
Measuring agencyNot determined
Measuring agencyUSGSU.S. Geological Survey
Source of measurementNot determined
Source of measurementSMeasured by personnel of reporting agency.
Water-level approval statusAApproved for publication -- Processing and review completed.