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Groundwater levels for the Nation

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Agency code = usgs
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  • 394901075430601
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USGS 394901075430601 CH 41

Chester County, Pennsylvania
Latitude  39°49'01", Longitude  75°43'06" NAD27
Land-surface elevation 280 feet above NGVD29
The depth of the well is 31.6 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 Wissahickon Formation, Oligoclase Mica Schist (300WSCKO) 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
1956-03-07 D62610 262.11NGVD291ZUSGSSA
1956-03-07 D62611 261.08NAVD881ZUSGSSA
1956-03-07 D7201917.89  1ZUSGSSA
1959-05-2217:00 UTCm62610 263.00NGVD291OUSGSSP
1959-05-2217:00 UTCm62611 261.97NAVD881OUSGSSP
1959-05-2217:00 UTCm7201917.00  1OUSGSSP
1989-08-08 D62610 265.60NGVD291S  A
1989-08-08 D62611 264.57NAVD881S  A
1989-08-08 D7201914.40  1S  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 measurementOObserved.
Method of measurementSSteel-tape measurement.
Method of measurementZOther.
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.
Water-level approval statusPProvisional data subject to revision.