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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 =
  • 412237092581101
Minimum number of levels = 1
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USGS 412237092581101 Redrock Dam: R-88-3

Marion County, Iowa
Latitude  41°22'37", Longitude  92°58'11" NAD27
Land-surface elevation 792.00 feet above NAVD88
The depth of the well is 50.0 feet below land surface.
The depth of the hole is 70.6 feet below land surface.
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
1996-07-1814:40 UTCm62610 750.28NGVD291S  A
1996-07-1814:40 UTCm62611 750.35NAVD881S  A
1996-07-1814:40 UTCm7201941.65  1S  A
1997-03-26 D62610 747.48NGVD291S  A
1997-03-26 D62611 747.55NAVD881S  A
1997-03-26 D7201944.45  1S  A
1997-06-2314:40 UTCm62610 749.41NGVD291S  A
1997-06-2314:40 UTCm62611 749.48NAVD881S  A
1997-06-2314:40 UTCm7201942.52  1S  A
1998-03-2615:55 UTCm62610 749.00NGVD291S  A
1998-03-2615:55 UTCm62611 749.07NAVD881S  A
1998-03-2615:55 UTCm7201942.93  1S  A
1998-12-1815:35 UTCm62610 748.50NGVD291S  A
1998-12-1815:35 UTCm62611 748.57NAVD881S  A
1998-12-1815:35 UTCm7201943.43  1S  A
1999-10-1216:00 UTCm62610 749.71NGVD29 T  A
1999-10-1216:00 UTCm62611 749.78NAVD88 T  A
1999-10-1216:00 UTCm7201942.22   T  A

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.
Measuring agencyNot determined
Source of measurementNot determined
Water-level approval statusAApproved for publication -- Processing and review completed.