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Groundwater levels for the Nation

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Agency code = usgs
site_no list =
  • 400105075395801
Minimum number of levels = 1
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USGS 400105075395801 CH 3931

Chester County, Pennsylvania
Latitude  40°01'05", Longitude  75°39'58" NAD27
Land-surface elevation 361 feet above NGVD29
This well is completed in the Piedmont and Blue Ridge carbonate-rock aquifers (N400PDMBRC) national aquifer.
This well is completed in the Conestoga Formation (367CNSG) local aquifer.
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
1990-01-02 D62610 341.11NGVD291S  A
1990-01-02 D62611 340.12NAVD881S  A
1990-01-02 D7201919.89  1S  A
1990-02-01 D62610 345.89NGVD291S  A
1990-02-01 D62611 344.90NAVD881S  A
1990-02-01 D7201915.11  1S  A
1990-03-01 D62610 344.46NGVD291S  A
1990-03-01 D62611 343.47NAVD881S  A
1990-03-01 D7201916.54  1S  A
1990-04-05 D62610 343.90NGVD291S  A
1990-04-05 D62611 342.91NAVD881S  A
1990-04-05 D7201917.10  1S  A
1990-05-02 D62610 344.08NGVD291S  A
1990-05-02 D62611 343.09NAVD881S  A
1990-05-02 D7201916.92  1S  A
1990-06-01 D62610 343.90NGVD291S  A
1990-06-01 D62611 342.91NAVD881S  A
1990-06-01 D7201917.10  1S  A
1990-07-02 D62610 343.01NGVD291S  A
1990-07-02 D62611 342.02NAVD881S  A
1990-07-02 D7201917.99  1S  A
1990-09-11 D62610 342.00NGVD291S  A
1990-09-11 D62611 341.01NAVD881S  A
1990-09-11 D7201919.00  1S  A
1990-10-24 D62610 342.00NGVD291S  A
1990-10-24 D62611 341.01NAVD881S  A
1990-10-24 D7201919.00  1S  A
1991-02-13 D62610 343.87NGVD291S  A
1991-02-13 D62611 342.88NAVD881S  A
1991-02-13 D7201917.13  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.