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Groundwater levels for the Nation

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Agency code = usgs
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  • 434440071400502
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USGS 434440071400502 NH-APW 2

Grafton County, New Hampshire
Latitude  43°44'40", Longitude  71°40'05" NAD27
Land-surface elevation 480 feet above NGVD29
The depth of the well is 22.0 feet below land surface.
The depth of the hole is 22.0 feet below land surface.
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
1987-10-06 D62610 471.80NGVD291T  A
1987-10-06 D62611 471.40NAVD881T  A
1987-10-06 D720198.20  1T  A
1988-01-29 D62610 470.78NGVD291T  A
1988-01-29 D62611 470.38NAVD881T  A
1988-01-29 D720199.22  1T  A
1988-04-07 D62610 472.32NGVD291T  A
1988-04-07 D62611 471.92NAVD881T  A
1988-04-07 D720197.68  1T  A
1988-06 M62610 471.45NGVD291L  A
1988-06 M62611 471.05NAVD881L  A
1988-06 M720198.55  1L  A
1988-07-22 D62610 471.21NGVD291T  A
1988-07-22 D62611 470.81NAVD881T  A
1988-07-22 D720198.79  1T  A
1988-08-08 D62610 470.76NGVD291T  A
1988-08-08 D62611 470.36NAVD881T  A
1988-08-08 D720199.24  1T  A
1988-11-29 D62610 471.33NGVD291T  A
1988-11-29 D62611 470.93NAVD881T  A
1988-11-29 D720198.67  1T  A
1989-01-04 D62610 470.53NGVD291T  A
1989-01-04 D62611 470.13NAVD881T  A
1989-01-04 D720199.47  1T  A
1989-03-09 D62610 469.65NGVD291T  A
1989-03-09 D62611 469.25NAVD881T  A
1989-03-09 D7201910.35  1T  A
1989-05-10 D62610 473.68NGVD291T  A
1989-05-10 D62611 473.28NAVD881T  A
1989-05-10 D720196.32  1T  A
1989-06-15 D62610 472.28NGVD291T  A
1989-06-15 D62611 471.88NAVD881T  A
1989-06-15 D720197.72  1T  A
1989-08-08 D62610 471.25NGVD291T  A
1989-08-08 D62611 470.85NAVD881T  A
1989-08-08 D720198.75  1T  A

Explanation
SectionCodeDescription
Water-level date-time accuracyDDate is accurate to the Day
Water-level date-time accuracyMDate is accurate to the Month
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 measurementLInterpreted from geophysical logs.
Method of measurementTElectric-tape measurement.
Measuring agencyNot determined
Source of measurementNot determined
Water-level approval statusAApproved for publication -- Processing and review completed.