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Groundwater levels for the Nation

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Agency code = usgs
site_no list =
  • 431840070585001
Minimum number of levels = 1
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USGS 431840070585001 NH-RHW 156

Strafford County, New Hampshire
Latitude  43°18'40", Longitude  70°58'50" NAD27
Land-surface elevation 232 feet above NGVD29
The depth of the well is 22.9 feet below land surface.
The depth of the hole is 33 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 Stratified Deposits, Undifferentiated (112SRFD) 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
1987-06-10 D62610 222.84NGVD291T  A
1987-06-10 D62611 222.27NAVD881T  A
1987-06-10 D720199.16  1T  A
1987-08-0617:00 UTCm62610 222.75NGVD291T  A
1987-08-0617:00 UTCm62611 222.18NAVD881T  A
1987-08-0617:00 UTCm720199.25  1T  A
1987-10-22 D62610 223.30NGVD291T  A
1987-10-22 D62611 222.73NAVD881T  A
1987-10-22 D720198.70  1T  A
1987-12-15 D62610 223.50NGVD291T  A
1987-12-15 D62611 222.93NAVD881T  A
1987-12-15 D720198.50  1T  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
Status1Static
Method of measurementTElectric-tape measurement.
Measuring agencyNot determined
Source of measurementNot determined
Water-level approval statusAApproved for publication -- Processing and review completed.