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Groundwater levels for the Nation

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  • 400117075331001
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USGS 400117075331001 CH 2481

Chester County, Pennsylvania
Latitude  40°01'17", Longitude  75°33'10" NAD27
Land-surface elevation 488 feet above NGVD29
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
1982-11-03 D62610 483.59NGVD291SUSGSSA
1982-11-03 D62611 482.59NAVD881SUSGSSA
1982-11-03 D720194.41  1SUSGSSA
1982-11-18 D62610 484.18NGVD291Z  A
1982-11-18 D62611 483.18NAVD881Z  A
1982-11-18 D720193.82  1Z  A
1982-12-10 D62610 483.75NGVD291Z  A
1982-12-10 D62611 482.75NAVD881Z  A
1982-12-10 D720194.25  1Z  A
1982-12-21 D62610 484.45NGVD291Z  A
1982-12-21 D62611 483.45NAVD881Z  A
1982-12-21 D720193.55  1Z  A
1983-01-11 D62610 484.63NGVD291Z  A
1983-01-11 D62611 483.63NAVD881Z  A
1983-01-11 D720193.37  1Z  A
1983-01-21 D62610 484.17NGVD291Z  A
1983-01-21 D62611 483.17NAVD881Z  A
1983-01-21 D720193.83  1Z  A
1983-02-18 D62610 484.80NGVD291Z  A
1983-02-18 D62611 483.80NAVD881Z  A
1983-02-18 D720193.20  1Z  A
1983-03-21 D62610 486.43NGVD291Z  A
1983-03-21 D62611 485.43NAVD881Z  A
1983-03-21 D720191.57  1Z  A
1983-04-29 D62610 486.21NGVD291Z  A
1983-04-29 D62611 485.21NAVD881Z  A
1983-04-29 D720191.79  1Z  A
1983-05-20 D62610 485.61NGVD291Z  A
1983-05-20 D62611 484.61NAVD881Z  A
1983-05-20 D720192.39  1Z  A
1983-06-20 D62610 484.92NGVD291Z  A
1983-06-20 D62611 483.92NAVD881Z  A
1983-06-20 D720193.08  1Z  A
1983-07-20 D62610 484.12NGVD291Z  A
1983-07-20 D62611 483.12NAVD881Z  A
1983-07-20 D720193.88  1Z  A
1983-08-19 D62610 483.49NGVD291Z  A
1983-08-19 D62611 482.49NAVD881Z  A
1983-08-19 D720194.51  1Z  A
1983-09-20 D62610 483.09NGVD291Z  A
1983-09-20 D62611 482.09NAVD881Z  A
1983-09-20 D720194.91  1Z  A
1983-10-21 D62610 483.17NGVD291Z  A
1983-10-21 D62611 482.17NAVD881Z  A
1983-10-21 D720194.83  1Z  A
1983-11-21 D62610 484.65NGVD291Z  A
1983-11-21 D62611 483.65NAVD881Z  A
1983-11-21 D720193.35  1Z  A
1983-12-19 D62610 485.21NGVD291Z  A
1983-12-19 D62611 484.21NAVD881Z  A
1983-12-19 D720192.79  1Z  A
1984-01-19 D62610 484.58NGVD291Z  A
1984-01-19 D62611 483.58NAVD881Z  A
1984-01-19 D720193.42  1Z  A
1984-02-21 D62610 485.34NGVD291Z  A
1984-02-21 D62611 484.34NAVD881Z  A
1984-02-21 D720192.66  1Z  A
1984-03-21 D62610 485.83NGVD291Z  A
1984-03-21 D62611 484.83NAVD881Z  A
1984-03-21 D720192.17  1Z  A
1984-04-20 D62610 485.87NGVD291Z  A
1984-04-20 D62611 484.87NAVD881Z  A
1984-04-20 D720192.13  1Z  A
1984-05-24 D62610 485.57NGVD291Z  A
1984-05-24 D62611 484.57NAVD881Z  A
1984-05-24 D720192.43  1Z  A
1984-06-21 D62610 485.52NGVD291Z  A
1984-06-21 D62611 484.52NAVD881Z  A
1984-06-21 D720192.48  1Z  A
1984-07-20 D62610 485.32NGVD291Z  A
1984-07-20 D62611 484.32NAVD881Z  A
1984-07-20 D720192.68  1Z  A
1984-08-20 D62610 484.93NGVD291Z  A
1984-08-20 D62611 483.93NAVD881Z  A
1984-08-20 D720193.07  1Z  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.
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.