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Groundwater levels for the Nation

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Agency code = usgs
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  • 400259075353101
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USGS 400259075353101 CH 3922

Chester County, Pennsylvania
Latitude  40°02'59", Longitude  75°35'31" NAD27
Land-surface elevation 390 feet above NGVD29
The depth of the well is 79 feet below land surface.
This well is completed in the Piedmont and Blue Ridge crystalline-rock aquifers (N400PDMBRX) national aquifer.
This well is completed in the Antietam Formation (377ANTM) local aquifer.
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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
1990-08-03 D62610 335.47NGVD291S  A
1990-08-03 D62611 334.47NAVD881S  A
1990-08-03 D7201954.53  1S  A
1990-08-07 D62610 334.76NGVD291S  A
1990-08-07 D62611 333.76NAVD881S  A
1990-08-07 D7201955.24  1S  A
1991-07-12 D62610 332.60NGVD291S  A
1991-07-12 D62611 331.60NAVD881S  A
1991-07-12 D7201957.40  1S  A
1991-08-13 D62610 330.99NGVD291S  A
1991-08-13 D62611 329.99NAVD881S  A
1991-08-13 D7201959.01  1S  A
1991-09-12 D62610 329.64NGVD291S  A
1991-09-12 D62611 328.64NAVD881S  A
1991-09-12 D7201960.36  1S  A
1991-10-01 D62610 328.64NGVD291S  A
1991-10-01 D62611 327.64NAVD881S  A
1991-10-01 D7201961.36  1S  A
1991-11-05 D62610 326.94NGVD291S  A
1991-11-05 D62611 325.94NAVD881S  A
1991-11-05 D7201963.06  1S  A
1991-12-06 D62610 326.77NGVD291S  A
1991-12-06 D62611 325.77NAVD881S  A
1991-12-06 D7201963.23  1S  A
1992-01-03 D62610 326.45NGVD291S  A
1992-01-03 D62611 325.45NAVD881S  A
1992-01-03 D7201963.55  1S  A

Explanation
SectionCodeDescription
Water-level date-time accuracyDDate is accurate to the Day
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 measurementSSteel-tape measurement.
Measuring agencyNot determined
Source of measurementNot determined
Water-level approval statusAApproved for publication -- Processing and review completed.