Available data

Select data types to graph from categories based on the way the data were collected.

1 data types available - data from 2007-10-01 to 2026-08-13

1 data types available - data from 1966-02-15 to 2026-08-12

3 data types available - data from 1951-08-24 to 2026-07-21

203 Observed properties (data types) available - with data from 2018-05-30 to 2026-05-13

20 Sampling activities

1 data types available - data from 1987-10-01 to 2026-08-11

Prior to June 24, 1981, top of casing 1.00 ft above land-surface datum.

Zoom out to see link to My Favorites

Operated in cooperation with:

Metadata Element	Location Metadata	Metadata Code
Agency	U.S. Geological Survey	USGS
Location identification number	395450075485401	n/a
Location name	CH 10 Chester County Observation Well	n/a
Site type	Well	GW
Decimal latitude (WGS84)	39.9137222222222	n/a
Decimal longitude (WGS84)	-75.8141944444444	n/a
Latitude-longitude method	Interpolated from digital map	N
Latitude-longitude accuracy	Accurate to + or - .1 sec (Differentially-Corrected GPS).	1
District	Pennsylvania	42
State	Pennsylvania	42
County	Chester County	029
Country	United States of America	n/a
Altitude of gage/land surface	293 feet	n/a
Method altitude determined	Light Detection And Ranging, airplane	J
Altitude accuracy	1 feet	n/a
Altitude datum	North American Vertical Datum of 1988	NAVD88
Subbasin hydrologic unit	Brandywine-Christina	02040205
Drainage basin		n/a
Date of first construction		n/a
Drainage area		n/a
Contributing drainage area		n/a
Time zone abbreviation	EST	n/a
Site honors Daylight Saving Time	Y	n/a
National aquifer	Piedmont and Blue Ridge carbonate-rock aquifers	N400PDMBRC
Local aquifer	Cockeysville Marble	300CCKV
Local aquifer type	Unconfined single aquifer	U
Well depth	33.5 feet	n/a
Hole depth		n/a
Source of depth data		n/a